This document provides information about seals and sealing technology. It discusses several key points:
- All potential causes of seal failure must be controlled, such as incorrect design, aging, improper installation, unsuitable material selection, and poor quality control.
- There are two basic categories of seals - static and dynamic. Static seals require zero leakage while dynamic seals require a balance of good contact and low friction.
- O-rings are a common and versatile seal type. Their design and mechanics are illustrated, including factors like groove design, compression percentage, and prevention of extrusion.
- Common seal failure modes are discussed like compression set, spiral failure, and explosive decompression. Causes, prevention methods, and
Hydraulic seals are non-metallic rings that block or separate fluid in reciprocating motion applications, providing a way for fluid power to be converted to linear motion. Seals can be positive or non-positive based on leakage, static or dynamic based on relative motion, and come in shapes like O-rings, quad rings, V-packing, and composite seals. The type of seal used depends on factors like pressure, temperature, operational speed, and compatibility with fluids. Common sealing materials include leather, rubbers, plastics, and metals.
P.T. International Corp. provides power transmission products including mounted bearings, drive products, and European linear components. They are headquartered in Charlotte, NC with an 80,000 square foot facility stocking over 25,000 SKUs. The document discusses their global manufacturing and sourcing, engineering capabilities, and ISO 9001:2008 certification. It also provides details on their product range, inspection processes, and installation guidelines for mounted spherical bearings.
Mechanical Face Seals Design for Differential Pressure Applicationssapparts
The document discusses mechanical seal designs for cutter rollers used in tunnel boring machines (TBMs). Standard seal designs face issues in differential pressure applications, where slurry can dry and cement the seal rings together. This prevents proper rotation. SAP Parts developed a seal with larger O-rings to minimize contact with slurry. Higher pressures also cause standard seals to lock up. SAP Parts' innovative seal balances loads and increases lubrication to prevent failures from thermal and impact stresses. The company tests seal designs on a bench to simulate severe TBM conditions over incremental pressure cycles up to 10 bar differential and validates performance.
Bearing failures can occur due to a variety of causes. This document identifies and describes 12 primary causes of bearing failure through detailed explanations and diagrams accompanied by photographs. Each failure cause is clearly characterized, and potential remedies are suggested. An authorized Barden representative can provide additional assistance in identifying and analyzing specific bearing failure cases.
This document discusses mechanical seals which are used to prevent leakage in pumps and other equipment. It describes the need for seals to minimize leakage and prevent toxic fluids from escaping. Both static seals, used between non-moving parts, and dynamic seals, used between moving parts, are covered. Common static seals include gaskets and O-rings, while dynamic seals include gland packings and mechanical contact seals. The document focuses on mechanical seals, explaining their design features such as seal faces, springs, and secondary seals. Different types are classified including single versus multiple spring seals, pusher versus non-pusher seals, and single versus double/tandem arrangements. Materials of construction and operating principles are also summarized.
Mechanical seals are used to prevent leakage of liquids and gases from pumps and other rotating equipment. There are several types of mechanical seals that can be used depending on the application. The basic components of a mechanical seal include a stationary seal face, a rotary seal face, springs or other compression devices, and secondary seals like O-rings. Proper operation requires the seal faces to be flat, perpendicular to the shaft, and in constant contact maintained by spring force. Forces acting on the seal faces include axial, radial, closing, opening, hydrostatic, and hydrodynamic forces. Materials for the seal faces must withstand friction while maintaining a thin lubricating film between the faces. Mechanical seals are also classified based on their configuration as
This document provides information about seals and sealing technology. It discusses several key points:
- All potential causes of seal failure must be controlled, such as incorrect design, aging, improper installation, unsuitable material selection, and poor quality control.
- There are two basic categories of seals - static and dynamic. Static seals require zero leakage while dynamic seals require a balance of good contact and low friction.
- O-rings are a common and versatile seal type. Their design and mechanics are illustrated, including factors like groove design, compression percentage, and prevention of extrusion.
- Common seal failure modes are discussed like compression set, spiral failure, and explosive decompression. Causes, prevention methods, and
Hydraulic seals are non-metallic rings that block or separate fluid in reciprocating motion applications, providing a way for fluid power to be converted to linear motion. Seals can be positive or non-positive based on leakage, static or dynamic based on relative motion, and come in shapes like O-rings, quad rings, V-packing, and composite seals. The type of seal used depends on factors like pressure, temperature, operational speed, and compatibility with fluids. Common sealing materials include leather, rubbers, plastics, and metals.
P.T. International Corp. provides power transmission products including mounted bearings, drive products, and European linear components. They are headquartered in Charlotte, NC with an 80,000 square foot facility stocking over 25,000 SKUs. The document discusses their global manufacturing and sourcing, engineering capabilities, and ISO 9001:2008 certification. It also provides details on their product range, inspection processes, and installation guidelines for mounted spherical bearings.
Mechanical Face Seals Design for Differential Pressure Applicationssapparts
The document discusses mechanical seal designs for cutter rollers used in tunnel boring machines (TBMs). Standard seal designs face issues in differential pressure applications, where slurry can dry and cement the seal rings together. This prevents proper rotation. SAP Parts developed a seal with larger O-rings to minimize contact with slurry. Higher pressures also cause standard seals to lock up. SAP Parts' innovative seal balances loads and increases lubrication to prevent failures from thermal and impact stresses. The company tests seal designs on a bench to simulate severe TBM conditions over incremental pressure cycles up to 10 bar differential and validates performance.
Bearing failures can occur due to a variety of causes. This document identifies and describes 12 primary causes of bearing failure through detailed explanations and diagrams accompanied by photographs. Each failure cause is clearly characterized, and potential remedies are suggested. An authorized Barden representative can provide additional assistance in identifying and analyzing specific bearing failure cases.
This document discusses mechanical seals which are used to prevent leakage in pumps and other equipment. It describes the need for seals to minimize leakage and prevent toxic fluids from escaping. Both static seals, used between non-moving parts, and dynamic seals, used between moving parts, are covered. Common static seals include gaskets and O-rings, while dynamic seals include gland packings and mechanical contact seals. The document focuses on mechanical seals, explaining their design features such as seal faces, springs, and secondary seals. Different types are classified including single versus multiple spring seals, pusher versus non-pusher seals, and single versus double/tandem arrangements. Materials of construction and operating principles are also summarized.
Mechanical seals are used to prevent leakage of liquids and gases from pumps and other rotating equipment. There are several types of mechanical seals that can be used depending on the application. The basic components of a mechanical seal include a stationary seal face, a rotary seal face, springs or other compression devices, and secondary seals like O-rings. Proper operation requires the seal faces to be flat, perpendicular to the shaft, and in constant contact maintained by spring force. Forces acting on the seal faces include axial, radial, closing, opening, hydrostatic, and hydrodynamic forces. Materials for the seal faces must withstand friction while maintaining a thin lubricating film between the faces. Mechanical seals are also classified based on their configuration as
- Most mechanical seals fail prematurely due to component damage from corrosion, physical damage from heat or pressure, or the seal faces opening due to issues like the shaft material, solids in the fluid, or changes in the fluid state.
- Proper seal design, using the right materials for the application, avoiding issues like a hardened shaft, and ensuring free movement of components can help prevent premature failure.
- Keeping the seal faces cool and lubricated is important for long life, and two hard faces should only be used when carbon faces cannot work for the application.
We are the renowned founder of IDT-spiral wound gaskets made of a mixture of a spiral-shaped wound made of graphite, mica, or PTFE and profiled stainless metal or stainless steel paper.
https://www.sealmax.in/spiral-wound-gaskets-930/
This document discusses how to analyze aircraft engine bearings to determine their condition and identify potential issues. It provides the following key points:
1) A quick visual inspection of the crankcase, crankshaft, journal clearances, and connecting rod alignment can indicate whether components are properly aligned and bearings show normal contact patterns.
2) Examining the backside of bearings can reveal polishing that indicates movement in the crankcase bore, suggesting an improperly sized bearing boss or insufficient clamping force.
3) The front-side pattern on bearings should be symmetrical, while asymmetry, cracks, or wiping indicate misalignments that could lead to bearing failure if not addressed.
This document discusses various causes of bearing failure including excessive loads, overheating, brinelling, fatigue, contamination, lubricant failure, corrosion, misalignment, loose fits, and tight fits. For each cause, symptoms and recommended corrective actions are provided. The overall document serves to educate about common bearing failures and how to prevent or address them.
The document discusses bearing failures and their causes. It provides details on different types of bearing damage including wear, indentations, smearing, surface distress, corrosion, electric current damage, flaking, and cracks. Path patterns that appear on bearing raceways can be analyzed to help determine abnormal operating conditions and the root cause of failures. Specific causes of damage covered include abrasive particles, inadequate lubrication, vibration, overloading, foreign particles, preloading, misalignment, and more. The document aims to help maintenance technicians properly diagnose bearing issues by understanding the characteristic signs of different failure modes.
Bearing is a mechanical element that drives relative motion to only the desired motion. It helps in reducing the friction between the moving parts. Let's dig into each type of bearing and its uses to get a wider vision.
Rex and Link-Belt Spherical Roller Bearing Units RexnordArve
This document provides an overview and catalog of Rex and Link-Belt spherical roller bearing units. It includes sections on Rex spherical roller bearing units features and benefits, shaft mounting styles, seal ratings and speed limits, nomenclature, engineering selection guides, and housing styles. It also includes sections on Link-Belt spherical roller bearing units features and benefits, seal ratings and speed limits, nomenclature, engineering selection guides, housing styles, and replacement parts. The document serves as a reference for different bearing unit product lines, specifications, and application guides.
What is the difference between Mechanical Seal and Gland Packing? | LEAK-PACKLEAK-PACK
Here you know the difference between mechanical seal and gland packing. Both gland packing and mechanical seals are effective and useful. It depends on economic viability, personal preference and requirement specification for which one will be preferred.
Rolling contact bearings are also known as anti-friction bearing due to its low friction characteristics between ball and inner and outer rings. Rolling contact bearings are used for radial load, thrust load and combination of these both loads. Rolling contact bearings are often used due to its lower price, less maintenance cost and easy to operate.
A consolidation of highly respected British brands E R & F Turner, Christy & Norris and Miracle Mills, Christy Turner Ltd is renowned for quality British engineering and innovation in the milling industry. With flaking mills operational around the globe, the leading UK engineering firm talks us through their top tips for increasing the longevity and performance of your flaking rolls.
The document discusses the development of anchored rubber gaskets for concrete tunnel segments. It describes the evolution from early glued gaskets that had poor stability, to anchored gaskets that are integrated directly into the concrete during casting (fourth generation). The latest generation adds a hydrophilic swelling strip that can self-repair gaps or offsets during assembly. Technical specifications and test results are provided for the UG027A anchored gasket with hydrophilic strip, showing its water tightness and ability to maintain contact at various gaps and offsets. Water conditions in Doha are also noted to not negatively impact the EPDM rubber or hydrophilic materials.
mechanical seals are an integral part on all fluid pumps and are a viable alternative for lip seals as well as packed glands. In practical applications, using these seals has been proven to increase pump longevity and make them usable for extended periods of time. http://www.sealsales.com/
This document discusses different types of mechanical seals used in pumps:
Pusher seals have secondary seals that move along the shaft to maintain contact but are prone to hang-ups. Unbalanced seals are inexpensive but have a lower pressure limit. Conventional seals require setting and alignment but installation is relatively simple. Non-pusher seals do not move along the shaft, can handle various temperatures, and do not require a secondary seal. Balanced seals have higher pressure limits and generate less heat, making them suitable for liquids with poor lubricity. Cartridge seals have the seal premounted and directly fit over the shaft, lowering maintenance costs and reducing errors.
The document provides information on leadscrew assemblies from HaydonKerk Motion Solutions. It discusses the materials, sizes, accuracies, and coatings available for leadscrews and nuts. Key specifications include leadscrew diameters from 1/8 to 15/16 inches, lead accuracies up to 0.0001 inches per inch, and positional repeatability of 50 microinches. Stainless steel, self-lubricating plastics, and composite polymers are some of the materials used. Kerkote and Black Ice TFE coatings provide lubrication for low friction and long life. Customization and special materials can also be accommodated.
Hebei Huayu Special Rubber Co., Ltd manufactures rotary drilling hoses in various grades from A to F. The hoses consist of an inner rubber tube, steel wire reinforcement layers, and an outer rubber cover. The tube and cover materials provide resistance to abrasion, corrosion, and other environmental factors. The steel wire reinforcement layers provide strength to withstand high pressures during oil and gas drilling operations. Hebei Huayu has an API 7K certificate and manufactures hoses in various sizes to meet customers' needs for pressure ranges from 15 MPa to 70 MPa depending on the hose grade.
Wear-Concepts provides wear-resistant products and services to reduce downtime and maintenance costs for industries like cement, mining, and manufacturing. They offer a variety of wear plates, overlays, panels, pipes, and ceramics, as well as field services and engineering support. As a global leader established in 1996, Wear-Concepts aims to respond to customers' changing needs with reliable performance, service, and dependability.
This document provides an overview of Halliburton's completion tools portfolio. It discusses their liner hanger systems, wellbore service tools, unconventional completions technologies, and leadership in the completions market. Halliburton offers solutions like expandable liner hangers, dissolvable frac plugs, and multistage frac sleeves to help customers reduce costs and increase production in challenging environments. The document highlights case studies where Halliburton's technologies saved customers time and money on completions projects.
Never-Seez is an anti-seize compound developed by Bostik to protect metal parts from seizure, corrosion, and galling under extreme conditions. It contains fine metallic particles in a special carrier that forms a protective film resistant to heat, pressure, water, and abrasion. Never-Seez allows easy assembly and disassembly of parts while preventing damage. It has been the industrial standard for over 50 years, improving machinery performance and reducing costs from down-time and replacement parts.
Aussie hole opener a hit - CUI MayJune FinalErvin Bata
The Wombat hole opener from Hard Metals was successfully tested in Alberta. It features changeable cutter wings made of polycrystalline diamond composites, a stabilizing ring that improves structural integrity, and Nord-lock washers for secure assembly. Testing of the hole opener in Crossfield, Alberta showed it could open holes at an average rate of under 7 minutes per rod through soils and rock formations, faster than tricone reamers. The stabilizing ring and polycrystalline diamond cutters allow the Wombat to achieve high rates of penetration through a wide range of strata.
A mechanical seal is a sealing device which forms a running seal between rotating and stationary parts. They were developed to overcome the disadvantages of compression packing. Leakage can be reduced to a level meeting environmental standards of government regulating agencies and maintenance costs can be lower.
This document discusses different types of bearings and their failure modes. It describes rolling contact bearings and their parts. Common failures for rolling contact bearings include wear damage, smearing, false brinelling, and corrosion. Cage failures include wear from contamination, tilting, and fractures. Sliding contact bearings are also discussed. Journal bearing failures like seizure, wear, oil whirl, and oil whip instabilities are explained. The document concludes by discussing research on air foil bearings which don't require external lubrication systems and their potential advantages and challenges.
- Most mechanical seals fail prematurely due to component damage from corrosion, physical damage from heat or pressure, or the seal faces opening due to issues like the shaft material, solids in the fluid, or changes in the fluid state.
- Proper seal design, using the right materials for the application, avoiding issues like a hardened shaft, and ensuring free movement of components can help prevent premature failure.
- Keeping the seal faces cool and lubricated is important for long life, and two hard faces should only be used when carbon faces cannot work for the application.
We are the renowned founder of IDT-spiral wound gaskets made of a mixture of a spiral-shaped wound made of graphite, mica, or PTFE and profiled stainless metal or stainless steel paper.
https://www.sealmax.in/spiral-wound-gaskets-930/
This document discusses how to analyze aircraft engine bearings to determine their condition and identify potential issues. It provides the following key points:
1) A quick visual inspection of the crankcase, crankshaft, journal clearances, and connecting rod alignment can indicate whether components are properly aligned and bearings show normal contact patterns.
2) Examining the backside of bearings can reveal polishing that indicates movement in the crankcase bore, suggesting an improperly sized bearing boss or insufficient clamping force.
3) The front-side pattern on bearings should be symmetrical, while asymmetry, cracks, or wiping indicate misalignments that could lead to bearing failure if not addressed.
This document discusses various causes of bearing failure including excessive loads, overheating, brinelling, fatigue, contamination, lubricant failure, corrosion, misalignment, loose fits, and tight fits. For each cause, symptoms and recommended corrective actions are provided. The overall document serves to educate about common bearing failures and how to prevent or address them.
The document discusses bearing failures and their causes. It provides details on different types of bearing damage including wear, indentations, smearing, surface distress, corrosion, electric current damage, flaking, and cracks. Path patterns that appear on bearing raceways can be analyzed to help determine abnormal operating conditions and the root cause of failures. Specific causes of damage covered include abrasive particles, inadequate lubrication, vibration, overloading, foreign particles, preloading, misalignment, and more. The document aims to help maintenance technicians properly diagnose bearing issues by understanding the characteristic signs of different failure modes.
Bearing is a mechanical element that drives relative motion to only the desired motion. It helps in reducing the friction between the moving parts. Let's dig into each type of bearing and its uses to get a wider vision.
Rex and Link-Belt Spherical Roller Bearing Units RexnordArve
This document provides an overview and catalog of Rex and Link-Belt spherical roller bearing units. It includes sections on Rex spherical roller bearing units features and benefits, shaft mounting styles, seal ratings and speed limits, nomenclature, engineering selection guides, and housing styles. It also includes sections on Link-Belt spherical roller bearing units features and benefits, seal ratings and speed limits, nomenclature, engineering selection guides, housing styles, and replacement parts. The document serves as a reference for different bearing unit product lines, specifications, and application guides.
What is the difference between Mechanical Seal and Gland Packing? | LEAK-PACKLEAK-PACK
Here you know the difference between mechanical seal and gland packing. Both gland packing and mechanical seals are effective and useful. It depends on economic viability, personal preference and requirement specification for which one will be preferred.
Rolling contact bearings are also known as anti-friction bearing due to its low friction characteristics between ball and inner and outer rings. Rolling contact bearings are used for radial load, thrust load and combination of these both loads. Rolling contact bearings are often used due to its lower price, less maintenance cost and easy to operate.
A consolidation of highly respected British brands E R & F Turner, Christy & Norris and Miracle Mills, Christy Turner Ltd is renowned for quality British engineering and innovation in the milling industry. With flaking mills operational around the globe, the leading UK engineering firm talks us through their top tips for increasing the longevity and performance of your flaking rolls.
The document discusses the development of anchored rubber gaskets for concrete tunnel segments. It describes the evolution from early glued gaskets that had poor stability, to anchored gaskets that are integrated directly into the concrete during casting (fourth generation). The latest generation adds a hydrophilic swelling strip that can self-repair gaps or offsets during assembly. Technical specifications and test results are provided for the UG027A anchored gasket with hydrophilic strip, showing its water tightness and ability to maintain contact at various gaps and offsets. Water conditions in Doha are also noted to not negatively impact the EPDM rubber or hydrophilic materials.
mechanical seals are an integral part on all fluid pumps and are a viable alternative for lip seals as well as packed glands. In practical applications, using these seals has been proven to increase pump longevity and make them usable for extended periods of time. http://www.sealsales.com/
This document discusses different types of mechanical seals used in pumps:
Pusher seals have secondary seals that move along the shaft to maintain contact but are prone to hang-ups. Unbalanced seals are inexpensive but have a lower pressure limit. Conventional seals require setting and alignment but installation is relatively simple. Non-pusher seals do not move along the shaft, can handle various temperatures, and do not require a secondary seal. Balanced seals have higher pressure limits and generate less heat, making them suitable for liquids with poor lubricity. Cartridge seals have the seal premounted and directly fit over the shaft, lowering maintenance costs and reducing errors.
The document provides information on leadscrew assemblies from HaydonKerk Motion Solutions. It discusses the materials, sizes, accuracies, and coatings available for leadscrews and nuts. Key specifications include leadscrew diameters from 1/8 to 15/16 inches, lead accuracies up to 0.0001 inches per inch, and positional repeatability of 50 microinches. Stainless steel, self-lubricating plastics, and composite polymers are some of the materials used. Kerkote and Black Ice TFE coatings provide lubrication for low friction and long life. Customization and special materials can also be accommodated.
Hebei Huayu Special Rubber Co., Ltd manufactures rotary drilling hoses in various grades from A to F. The hoses consist of an inner rubber tube, steel wire reinforcement layers, and an outer rubber cover. The tube and cover materials provide resistance to abrasion, corrosion, and other environmental factors. The steel wire reinforcement layers provide strength to withstand high pressures during oil and gas drilling operations. Hebei Huayu has an API 7K certificate and manufactures hoses in various sizes to meet customers' needs for pressure ranges from 15 MPa to 70 MPa depending on the hose grade.
Wear-Concepts provides wear-resistant products and services to reduce downtime and maintenance costs for industries like cement, mining, and manufacturing. They offer a variety of wear plates, overlays, panels, pipes, and ceramics, as well as field services and engineering support. As a global leader established in 1996, Wear-Concepts aims to respond to customers' changing needs with reliable performance, service, and dependability.
This document provides an overview of Halliburton's completion tools portfolio. It discusses their liner hanger systems, wellbore service tools, unconventional completions technologies, and leadership in the completions market. Halliburton offers solutions like expandable liner hangers, dissolvable frac plugs, and multistage frac sleeves to help customers reduce costs and increase production in challenging environments. The document highlights case studies where Halliburton's technologies saved customers time and money on completions projects.
Never-Seez is an anti-seize compound developed by Bostik to protect metal parts from seizure, corrosion, and galling under extreme conditions. It contains fine metallic particles in a special carrier that forms a protective film resistant to heat, pressure, water, and abrasion. Never-Seez allows easy assembly and disassembly of parts while preventing damage. It has been the industrial standard for over 50 years, improving machinery performance and reducing costs from down-time and replacement parts.
Aussie hole opener a hit - CUI MayJune FinalErvin Bata
The Wombat hole opener from Hard Metals was successfully tested in Alberta. It features changeable cutter wings made of polycrystalline diamond composites, a stabilizing ring that improves structural integrity, and Nord-lock washers for secure assembly. Testing of the hole opener in Crossfield, Alberta showed it could open holes at an average rate of under 7 minutes per rod through soils and rock formations, faster than tricone reamers. The stabilizing ring and polycrystalline diamond cutters allow the Wombat to achieve high rates of penetration through a wide range of strata.
A mechanical seal is a sealing device which forms a running seal between rotating and stationary parts. They were developed to overcome the disadvantages of compression packing. Leakage can be reduced to a level meeting environmental standards of government regulating agencies and maintenance costs can be lower.
This document discusses different types of bearings and their failure modes. It describes rolling contact bearings and their parts. Common failures for rolling contact bearings include wear damage, smearing, false brinelling, and corrosion. Cage failures include wear from contamination, tilting, and fractures. Sliding contact bearings are also discussed. Journal bearing failures like seizure, wear, oil whirl, and oil whip instabilities are explained. The document concludes by discussing research on air foil bearings which don't require external lubrication systems and their potential advantages and challenges.
Pioneer Machinery manufactures a variety of bearing products for industrial customers. It was founded in 1990 and has since expanded its product lines through acquisitions and innovations. Today it focuses on developing high-performance bearings for demanding applications in industries such as oil and gas.
L3 - Main Engine Components vsr.pptx.pptxSahalSachu
The document discusses various components of diesel engines, including bedplates, frames, cylinders, and piston components. It focuses on bedplate design and construction, describing how bedplates must be rigid to support the engine but also flexible to accommodate ship movement. Bedplates are made of fabricated mild steel, cast iron, or composite materials. Forces acting on bedplates include firing loads, side thrusts, weights, and stresses from temperature changes and ship movement. The document also discusses holding down bolts, chocks, inspection requirements, and frame and tie-rod components.
Balanced mechanical seals help maintain seal face closure under high pressure by locating the seal faces such that stuffing box pressure has less effect on closure. Mechanical seal failures typically occur when the seal's motion is restricted, heat causes O-rings to deteriorate, incompatible materials are used, or incorrect installation. Balanced seals and proper material selection can help minimize failures from heat and materials issues, while correct installation prevents problems from restricted motion.
sealing system for rotating shafts ( mechanical seals and packing )elkeik
This document provides an overview of mechanical seals and packing seals used to seal rotating shafts. It discusses the basic components and functioning of packing seals, including stuffing boxes, packing rings, and gland packings. It then summarizes the components and lubrication of mechanical seals, including primary and secondary seals. Various types of mechanical seals are classified by arrangement, including single seals, dual seals, and configurations such as inside versus outside mounted seals.
The document discusses using ultrasound to monitor plain bearings. It begins by introducing plain bearings and their advantages over rolling-contact bearings, such as withstanding shocks and damping vibration. It then discusses using ultrasound to monitor three failure modes in plain bearings: normal operation, hard contamination, and oil starvation. Ultrasound readings can detect these failures by analyzing static ultrasound data across multiple measurement points on the bearing and looking at time waveforms. Ultrasound is presented as an effective technique for condition monitoring of plain bearings.
Gasket failure through crushing is a common problem that can lead to leaks and unplanned maintenance. While sophisticated torquing equipment is often used, achieving proper torque is difficult due to various factors. A better solution is improving gasket design. The article describes a new gasket design called a "fishbone gasket" that features rounded ribs and integral stop-steps to prevent over-compression of the gasket material and eliminate crushing. Laboratory tests found this design achieved better crush resistance and sealing performance compared to traditional spiral-wound and camprofile gasket designs. The stop-step concept could also be applied to other gasket types to improve reliability.
This document discusses the design and analysis of alloy wheels for cars. It begins by describing how three different wheel designs made of different materials (aluminum, magnesium, titanium) for a Volkswagen Polo were analyzed using Creo and ANSYS software. Static, dynamic, and fatigue analyses were performed to determine stresses, deformations, safety factors, and product life. It was found that aluminum has less deformation while magnesium is more durable. Therefore, a new alloy combining aluminum and magnesium was proposed. The production process for alloy wheels is also summarized, from melting and casting aluminum to heat treatments and finishing. Finally, prior studies on wheel loading analysis and comparing materials are reviewed before conclusions are drawn on the best design and material.
This document discusses the design and classification of bearings. It begins by defining a bearing as a machine element that supports another moving element, allowing relative motion while carrying a load. Bearings are classified based on the direction of load (radial or thrust) and the type of contact (sliding or rolling). Sliding contact bearings are further classified based on the thickness of the lubricating film between surfaces. Common types of sliding contact bearings include journal, footstep, and thrust bearings. Properties of bearing materials and types of lubricants are also outlined.
This document provides information about SAP Parts' mechanical face duo cone seals, including:
- SAP Parts is an ISO 9001:2008 certified manufacturer of precision mechanical face duo cone seals based in Pune, India.
- The seals feature corrosion-resistant seal rings, precision lapped sealing surfaces, and special seal and O-ring materials.
- The seal design uses elastomeric O-rings to provide loading for the metal sealing rings and create a static and dynamic seal between the rings.
- The document discusses the seal design principle, features, development process, engineering applications, materials used, ramp angles, sizes and other design details.
The document discusses Pacific Wedgeplug valves, including:
1) Key features of Wedgeplug valves like simple construction, metal sealing surfaces, and bi-directional sealing capability.
2) Typical applications in refineries and petrochemical plants, including isolation valves in various units.
3) Design details like the plug, body, seats, bonnet, and Wedgetorque operator. Purging and flushing processes are described to enhance performance.
The document summarizes different types of clutch friction materials and components. It describes organic, heavy duty, semi-metallic, and copper ceramic discs, as well as carbon-carbon materials. It also discusses diaphragm style pressure plates, clutch release bearings and forks, and linkage, cable, and hydraulic clutch release mechanisms.
How to Improve Steam Turbine Head Rate and Increase OutputMargaret Harrison
As the steam path degrades in mature steam turbines performance loss often occurs. Reducing heat rate while increasing output can have a significant impact on earning potential within the current market and today’s regulatory conditions. Improvements of 3% or more have been seen by users who have installed the full package of steam turbine seals in their units. EthosEnergy has been developing advanced turbine sealing technologies that improve efficiency and performance of steam turbines for over 30 years.
The document discusses a solution developed to address repeated failures of diaphragm welds in refinery heat exchangers. The solution involved eliminating the diaphragm plate and replacing it with a double-tapered, self-energizing metal pressure seal. Finite element analysis validated that the seal would keep components in an elastic state with stresses below code limits. The retrofit successfully eliminated cracking as the root cause of leaks, increasing equipment reliability while reducing downtime and costs during maintenance.
This document provides information on bearings, including their history, classification, materials used, lubrication types, and design procedures. It discusses how bearings are designed to reduce friction, carry loads, and guide moving parts. The key types are described as radial or thrust bearings, and sliding or rolling contact bearings. Common materials include babbitt metals, bronzes, cast iron, silver, and non-metallic options. Design of journal bearings involves calculating parameters like load capacity, pressure, clearance, heat generation and dissipation. An example at the end illustrates the full design process.
Conditioning Monitoring of Ball Bearing Using Vibrational AnalysisIRJET Journal
This document provides an overview of condition monitoring of ball bearings using vibrational analysis. It discusses how ball bearings work and common failure modes. Vibration analysis is explored as a way to identify bearing defects by analyzing vibration signatures from sensors. Signal processing techniques like Fourier analysis are used to extract information from vibration signals and identify distinctive frequencies associated with different defect types. Continuous vibration monitoring allows early identification of defects, enabling prompt maintenance and increasing bearing lifespan.
This document provides information on Caterpillar's CEMA C, D and E series surface conveyor structure products. It describes the various carrying idlers, steel rolls, EXALON polyethylene rolls, rubber disc return idlers, and electronic quality tracking systems that are designed to transport bulk materials reliably in different applications. The document also notes that all products conform to CEMA standards and are intended to provide long life, high reliability, and superior performance.
Similar to How to unlock productivity savings in mining operations part 3 final_11.06.2017 (20)
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
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How to unlock productivity savings in mining operations part 3 final_11.06.2017
1. How to Unlock Productivity
Savings in Mining
Operations
Part Three in a Series:
“Proven Disruptive Technology Solutions”
- Idler Rolls that last longer
- An innovative Cradle Assembly dramatically reduces time spent on roll
replacement activities
Both of the above realise millions of dollars from productivity gains
Report By: David Mallinson 11/06/2017
Part 3
Proven Disruptive
Technology Solutions
2. How to Unlock Productivity Savings in Mining
Operations
Part Three: “Proven Disruptive Technology Solutions”
Executive Summary
- Two solutions:
o Rolls that last longer
o An innovative Conveyor Idler Assembly (CIA) dramatically reduces time spent on
roll replacement activities
o Both the above realise millions of dollars in productivity improvements
- Other benefits
o OH&S risks mitigated
Overview – DunnEasy International Pty Ltd
Our idler roll heads and conveyor idler assembly with cassettes were invented and patented by
Les Dunn who is one of Australia’s leading mining technologists specializing in conveyor systems
for over 40 years.
The heads are inserted into either Fused Ferric (modified) stainless steel or high grade carbon
(black) steel idler shells. The stub axle (shaft) sits into low-grade heavy mass mount plates to
absorb vibrations in the cassettes in order to reduce the likelihood of damage to associated
infrastructure. Both the heads and assemblies are patented items worldwide.
The Fused Ferric (Modified) stainless steel rolls are produced by a unique spiral wrap tubular
shell Technology thereby eliminating MIS / TIR to as low as practically achievable.1
As proven by testing at Newcastle University2
ours is the only roll in any market that does not
allow dust and moisture into the bearing cage in the heads in their submerged testing regimen.
The latter is one of the primary causes of most rapid roll failures.
Our rolls have proven to last at least 5 times longer than any other similar priced roll in the
market place but in most instances have been found to last 5->10 times longer. The Fused Ferric
stainless steel or High grade >350mpa carbon (black steel) fabrication of our idler rolls is
arguably the highest quality available in the industry today. Both the heads and cassettes are
patented items worldwide.
Ours are ‘shaftless’ rolls which are very uncommon. The shell tubing replaces and acts for the
through-shaft without the additional mass of a solid or hollow through axle shaft as typical of
conventional idler rolls. This makes the rolls much lighter, utilising far less in energy to fabricate &
operate – meaning a minimal carbon footprint.
1 Our Fused Ferric is based on a proprietary modified SS-410L
2 TUNRA Bulk Solids Handling Research Associates Report #8551April 2015
1
3. Our rolls are manufactured to suit either replacement and/or brand new conveyor belts. They are
suited to be retrofitted any known conveyor belt system worldwide.
In most cases, when a roll needs replacing, the process requires 2-3 labour units, a mobile crane and
2-4 hours of conveyor belt shut down time. When our rolls are used in conjunction with our Conveyor
Idler Assembly using Cassette/s, change-out requires 1 labour unit & 8-10mins change out and no
belt shut down3
. Annually these productivity improvements equate to tens of millions of dollars per
location.
On almost all conveyors, at least 10% of rolls are failing requiring being changed out every year. In
many instances some parts of the conveyors have rolls changed every week. Some last <48 hours.
Solution 1
Rolls that last longer
To do this the rolls must be designed to:
- Have reduced bearing failure – the key cause of roll replacement
- Feature significantly improved TIR4
and MIS5
readings. These are to do with the roundness
of the pipe outer shell. It is essential to ensure pipe roundness to maximise efficiency and
reduce risk of shell failure and belt damage.
- Feature reduced Rim Drag6
- Be made of tougher material
- Weigh much less
- Avoid shell to end weld failure
3 Risk Assessment SAFETY Protocols to be site enacted
4
TIR is a measurement of the gross out of radius dimension of an idler. It measures ovality and bending of the shell tube. It also checks
whether the heads have been inserted squarely or have deviated from true, due to welding processes. It is measured by turning an idler on
its axis and measuring the surface position on a dial gauge of several points along the idler. The furthest reading is subtracted from the
closest.
5
MIS is a measurement of the maximum instantaneous slope of the pipe shell. MIS is measured by taking an accurate reading around the
diameter of the pipe every 6 degrees of rotation and comparing each reading to its adjacent readings. This indicates the slope of change of
roundness, ovality or denting of the shell tube. This type of measurement is repeated at three locations along the roller. It has been found to
directly correlate to the noisiness of the idler’s interaction with the belt above it. As noise is generated by a vibratory force, any noise is
placing more stress on the bearings and associated structural componentry.
6
Rim drag is the amount of force needed to turn an idler in Newtons. Lower rim drag, means a lower power bill.
2
4. Reduced bearing Failure
Problem Solution
Premature bearing failures. These fit into a
number of categories:
Contamination.
This occurs when foreign material enters the
bearing. It may be dirt, dust or water causing
corrosion. All bearing housings are fitted with
seals to prevent this. They are generally fitted to
either side of the bearing.
However fluctuations in temperature between
the inside area of the roll shell and the outside
ambient temperature of the roll, applies positive
or negative pressure forces which is sufficient to
overcome the integrity of the seal construction
allowing the ingress of externally built up
contaminant transiting past the seals in a screw
action similar to a car wheel bearings when
travelling through knee deep water.
Ours is a unique design. The bearing is fully
encapsulated in a minimal cavity void.
Being completely embedded in the head end
disc means that any small cavity volume
thermal pressure force differential (positive or
negative) cannot overcome the bearing’s single
outer lubricant contact lip. The latter also
features non-contact dust seals with a natural
design capability to allow the debris, dust,
moisture to wind through. All the seals are on
the shaft extension outer side. As a result
debris, dirt and moisture have great difficulty
entering the cavity confines. In addition the
radial ‘flinging’ action of the components makes
it almost impossible for any dissipated debris
and moisture to get to the lubricant seal.
Our proprietary external 304 grade S/S shield,
ABS Debris Shield and felt self-generating
micro-seal protects the single outer bearing
side. The inner race side is exposed to the very
minimal cavity volume and no sealing is
required on this side of the bearing. Having
such a small volume dramatically reduces the
normal pressuring forces that can move grease
out and contaminants into the bearing.
A 304 Grade stainless steel weather shield on
the outer side of the bearing is the only seal. It
repels all wash-down forces which are
dissipated through the self-generating felt
micro-seal to prevent any corrosive build up. A
felt debris seal is used – this in turn creates its
own non-contact micro-seal.
Problem Solution
Lubricant Failure.
Lubricant failure can be caused by a loss of
grease from mechanical forces or over heating
of the grease.
Our design incorporates minimum volume
encasement of the bearing cavity. This means
that when under centrifugal pressure, the grease
has nowhere to go and must stay in the housing.
The lubricant is a very high quality specially
formulated for the task of operations below -
300
C to >1300
C.
3
5. Problem Solution
Misalignment.
A bearing that is not mounted truly at right angles
to its rotating forces can develop premature wear
points.
Our bearing housings are CNC “Profiled’
machined using high tolerance tungsten tooling
as are the internal ends of the pipe shell.
The shell tubing is held as close as possible to
a perfect circular condition during ‘Profiling’ The
internal tube features a set interference fit
tolerance to mate with the head end disc which
has a correlated external stepped profile.
They are stepped to ensure perfect load-
bearing alignment when pressed and swaged
into position.
There is no welding process involved in the
manufacture. This avoids distortions from the
different cooling rates, and matrix destruction –
a property inherent in steel that causes ‘Rotting’
which presents itself as a high corrosion rate at
the junction of the weld.
Problem Solution
Excessive loads,
Overheating and Brinelling7
. This failure group is
related to the damage that occurs to the
bearing’s surface once its elastic load limit has
been exceeded. (Elastic load limit is the amount
of force a material can take and still return to its
original shape once the force has been removed)
The smooth surface of the bearing is galled and
fine particles of metal begin to break away. Once
this starts, the bearing will quickly heat up and
weaken the properties of the lubricating grease,
which leads to thermal runaway and self-
destruction.
Our bearing never exceeds its elastic limit,
since at >94 kN the bearing has a much higher
rating than the task requires. This has the
added advantage of greatly extending the
normal fatigue B-10 life limit specified by the
manufacturer.
The low TIR and MIS ratings of our idlers also
extend the bearing life by reducing continuous
mechanical impact loadings, but maintaining
sufficient load to eliminate the skidding of the
rotating elements that form the bearing.
7 Localized surface corrosion; a cause of damage to bearings
4
6. Problem Solution
Misaligned Structure.
Idler Sets and the operating environment can
contribute to idler work loadings that are
outside their specified parameters.
These loadings can drain energy and increase
maintenance levels. They are typically the
result of poor design or poor installation.8
This has led to an industry practice where
short lived rolls are being hidden in the
financial reporting as consumables, instead of
being listed as failing assets.
Traceability is the key to identifying poor alignment
and other structural problems in a conveyor
system.
All our rolls have a unique serial number on every
head end disc.
We record these numbers and associated
information in a database for complete traceability.
Problem Solution
Poor Handling
This occurs during transport from the
manufacturer to site and during installation and
can distort tube, distort bearing housings and
damage bearings.
Testing by D.R. Watson and J. Van Niekerk of
South Africa has shown that a force of
approximately 2 tonnes was sufficient to cause
plastic deformation of a 3mm thick end cap on a
standard roll.
This then increased the TIR reading and added
to the out of balance forces. The rolls
subsequently responded with poor performance
and reduced life span.
Our rolls feature machined ends which are
designed to tolerate a 10 tonne load without
plastic deformation. They are also 60% lighter
in construction, which means there is less
weight to transport.
A lighter roll is easier to manhandle and
therefore less likely to be dropped. Lower mass
also reduces OH&S issues associated with
extended stretching to reach the roll installation
position.
8 A conveyor belt can run true with idler rolls in +/- squareness state balancing the tracking of the belting within limits. This is not
a recommended method to track a conveyor belt for longevity.
5
7. Improved TIR and MIS
Problem Solution
TIR, MIS, and idler performance.
TIR is a measurement of the gross out of
radius dimension of an idler. It measures
ovality and bending of the shell tube.
When installed, poor TIR places a continuous
shock load on the bearing with every
revolution of the idler. It also creates a
flapping effect in the passing belt as it is lifted
and lowered on each revolution of the idler.
This phenomenon is evidenced by vibration
and noise. As this energy is transferred into
the supporting structure, it strains and can
eventually fracture, substantial support
fabrications.
MIS is the surface finish correctness to
radially differences as a slope plane generally
taken @ 6 minutes of rotation angle and these
sloped surface imperfections have been found
to directly correlate to the noisiness of the
idler’s interaction with the belt above it.
As noise is generated by a vibratory force,
any noise requires energy for generation and
as such is placing more stress on the
bearings and associated structural
componentry.
Both TIR and MIS readings refer to the roundness
of the pipe outer shell. The design of our roll
ensures pipe roundness via the following
protocols:
a) High levels of quality assurance ensure that the
original pipe is manufactured to true roundness.
The final process in the manufacture is to draw
the pipe through a set of round dies. This
compression through the dies ensures a high
quality and repeatable raw round product.
b) During the manufacturing process, all
machining of the pipe occurs within the grip of
close tolerance collets instead of three or four jaw
chucks. This removes distorting forces during the
end machining process.
c) Close tolerance machined profiled steel head
ends are interference fitted and act as a ‘Truing’
die to force any distortion of the tube shell to well
within the pipe to maintain the true roundness of
the pipe. The swage pressure fits the pipe to the
head end disc bearing housing.
d) No welding process is employed that would
distort roundness through uneven heating and
cooling.
All our rolls are “weigh scale” rolls, without
modification ex production.
Improved Rim Drag
Problem Solution
Rim Drag & Idler performance.
Rim drag is the amount of force needed to turn
an idler in Newtons. This force is multiplied by
the speed of the conveyor in meters per
second, to determine the energy required to
turn the idler in watts. Lower rim drag, means a
lower power bill.
The unique and patented construction, of our roll
eliminates the need for elaborate bearing seals.
These seals are a major contributor to rim drag
because they have only one external side
bearing lubrication contact lip seal.
6
8. Tougher material
Problem Solution
Material used and idler performance.
Typically rolls are made of the lowest grade
carbon (black) steel. However to perform
effectively and last longer rolls need to be made
of steel with a much higher tensile strength.
Not only will this tougher material provide
superior wear characteristics it will also deliver
much improved surface smoothness.
However, if an idler surface is too smooth, it will
slip against the belt creating flat spots and heat
in the idler. (This is an issue with high grades
304-309-316 & 318 stainless steel rolls that
‘surface work-harden’ to a shiny surface
polished finish.) A material is required that
combines a longer life wearing resistance, a
hardness to reduce bending distortion, with
sufficient frictional surface corrosion, to ensure
roll rotation and belt control travel
alignment(Tracking) guiding is maintained and
that work hardening surface polishing and
consequential belt slippage and wander do not
occur.
We use Vitresteel which has a yield strength that
is >3 times that of carbon (black) 200LO 200-
250 mpa grade steel and a tensile strength that
is >2.7 times that of 350 mpa grade high tensile
carbon steel and stainless steels.
This tougher material provides superior wear
characteristics. The wear characteristics of an
idler shell are not only related to toughness, but
also surface smoothness.
At the microscopic level, if an idler surface is too
smooth, it will slip against the belt creating flat
spots and heat in the idler. (This is an issue with
High grade stainless steel rolls that surface work
harden to a shiny polished finish.)
The unique blend of alloys in Fused Ferric
Modified Stainless Steel combines a longer
wearing hardness with sufficient surface
corrosion, to ensure that work hardening surface
polishing and consequential belt slippage and
wander do not occur.
Less Weight
Problem Solution
Impact of idler roll weight.
When considering the true cost of any piece of
equipment, one cost that is often
underestimated, is the cost to human well-
being.
Some of these OH&S effects are not
immediately obvious. Heavier components
increase the risk of injury when being manually
handled.
Conveyor idler change out is a unique situation,
where it is difficult or too expensive or
impossible to gain access to provide
mechanical assistance.
By eliminating the central solid or heavy hollow
steel bar axle shaft in the idler, our roll offers a
reduction in weight of up to 60% over a
conventional unit.
When being manually handled heavier
components increase the risk of personal injury.
Conveyor idler change out is a unique situation,
where it is difficult or expensive to provide
mechanical assistance.
With our roll the weight savings versus
conventional rolls become even greater in as the
shell face length increases
7
8
9. Shell to end weld failure
Problem Solution
When a standard idler fails at the welded joint, the
spinning bearing housing, acts like a ‘Pizza
Cutter’. This spinning sharp jagged edge, scours
and cuts the covers and carcass of the belt,
occasionally shredding the belt into useless lineal
strips. The remaining tubular shell becomes holed
and becomes a ‘Potato Peeler’ shaving the
covers and finally the carcass.
The construction of our roll does not weld the
bearing housings into the end of the pipe.
We use a proprietary process whereby a
groove is machined into the bearing housing
and the pipe is then mass swaged
(compressed) into this groove with a hydraulic
press.
This creates the distinctive rolled pipe ends of
our idler. These rolled ends eliminate any sharp
edges which can cause belt cover and carcass
damage.
8
10. Solution 2
Innovation that dramatically reduces roll replacement time, cost and risk.
Key issues:
- Fixed idler sets for idler rolls
- Technically qualified staff
- Work in ‘hazardous areas’
- Disruption to operations and production
Fixed Idler Sets
Problem Solution
These generally require complete removal
and to be stood aside for roller replacement
prior to re installation under the conveyor.
When in operation many of these are subject
to being clogged with dust dirt and other
debris.
All of the above is time consuming and
hazardous during changeover.
The straight cross-member is also subject to
overload and impact bending damage which
locks the shaft mounting ends making roll
removal difficult. Bent cross-members also
alter the belting cross profile. This causes the
loading to be transferred to adjacent idler
sets and. As a result, contact friction is
reduced dramatically causing skimming and
flat spotting – further maintenance issues to
be dealt with during maintenance. Resultant
structural damage can be significant.
The ideal idler roller frame needs to
accommodate the requirements for roll
changeover simply and effectively.
Typical fixed frame roll change outs can take
up to 2 hours per frame dependent on
complexity of the location.
This time needs to be significantly reduced if
improved productivity is to be achieved.
Our Idler Roll Assembly process during
maintenance or change out is as follows:
The assembly is lowered away from the
belt for maintenance and the rolls, housed
in cassettes, slide out. The hazards of
pinch points are eliminated by this process
which also relieves frictional contact. The
rolls then slide out easily on the curved
slider beam. Because of the curved profile
of this beam, any overload situation or
other impact flexes the beam which
returns to profile as soon as the overload
situation has passed and the cross profile
remains intact.
The idler slider beam hinges from one
side, and is located in place by a cam
locking mechanism. A safety lock pin is
then removed, using a shifter and small
lifting device to lower the slider beam
down on one end. This unloads every roll
in the line clear of the belting and as a
result all pinch point hazards are
eliminated.
9
11. Technically qualified staff
Problem Solution
Specialised equipment and technically qualified
staff are required since belt lifting equipment
must be deployed. This requires planning and
organising the suitable resources - which may
be better deployed elsewhere on site with other
work commitments
Idler roll replacement should be carried out
using relatively unskilled labour
Our idler rolls can be serviced or changed
out without the need of proprietary lifting
equipment or machinery by semi-skilled staff
The mine has the option to continue to
operate the conveyor belt during change
out9
Work in ‘hazardous areas’
Problem Solution
This includes working in areas such as between
the conveyor’s fixed assemblies requiring the
conveyor belt to be raised for change outs.
The ideal roll change-outs would avoid
obvious work hazards and severely mitigate
risks to human well-being.
Idler roll maintenance is completed from
only one side of the conveyor belt, where
currently maintenance has to be from both
sides
9 See Foot Note #3
10
12. Disruption to operations
Problem Solution
The enforced and lengthy shut down of the
conveyor belt to make roll change outs.
Roll change-outs, in the ideal world, would be
conducted without stoppages to the conveyor
belts and subsequent impacts on productivity at
the same time reducing OH&S risk.
The purpose of the Idler Assembly is to
replace the use of fixed idler frames and
replace them with a movable idler assembly
to avoid having to lift the conveyor belt for
idler roll change outs. This can then reduce
shut downs and lengthy delays and unsafe
change out methods that can arise through
roll change outs.
Conclusion
- Our Idler Roll design combined with patented technology provides significantly extended
roll life
- Our highly innovative Conveyor Idler Assembly c/w cassette methodology reduces
changeover times by at least 90% and can be used while the conveyor is running.10
- Both these solutions provide miners and bulk materials handlers a means of significantly
improving productivity leading to significant enhancement to EBITDA
- Miners are looking to protect/enhance margins by improving productivity and reducing
costs. Our products provide simple, straightforward ‘Capex light’ solutions.
- Our Idler Roll design combined with patented technology provides significantly extended
roll life
10 See Footnote #3
11