Groschopp Inc. is a manufacturer of custom motors, gearmotors and reducers located in Sioux Center, Iowa. They have over 75 years of experience designing and manufacturing exclusively in the US. Their products include over 8,000 standard platforms and 100,000 custom designs. They ensure high quality through ISO 9001 registration and inspection capabilities including 3D measurement machines.

1. ISO 9001:2008 Registered
High Reliability Motors, Gearmotors and Reducers for OEMs
INTRODUCING GROSCHOPP
Designed & Manufactured in the USA
Groschopp Inc.
420 15th St. NE
Sioux Center, IA 51250-2100 USA
(712) 722-4135 Phone
800.829.4135 Toll Free
712.722.1445 Fax
sales@groschopp.com Email Connect with us:
www.groschopp.com

2. History
Designing and manufacturing custom motors and integrated motion solutions exclusively in the United States for over 75 years.
Late 1930’s 1996
Wincharger Corporation Groschopp, Inc. (USA) splits
acquired by Zenith to bring radios 1968 from German company
powered by Wincharger’s generators to Dyna-Technology acquires Continues small motor
rural regions. Wincharger from Zenith manufacturing tradition
1900 1920 1930 1940 1950 1960 1970 1980 1990 2000
1930 1975 1980
Wincharger Corporation Dyna-Technology Groschopp GmbH aqcuires
based in Sioux City, IA pioneers the de- Relocates to Sioux Center, IA Dyna-Technology manufacturing
velopment of wind powered generators high quality small motors and
gear drives
Location: Sioux Center, Iowa USA
Facilty Size: 107,000 sq. ft.
Employees: Approximately 300 employees
(800) 829 - 4135

3. Products
Over 8,000 standard, Pre-Engineered Product Platforms and over 100,000 proven custom designs
Capabilities
Permanent
Our motors have a rugged design: die- Magnet AC Induction Brushless DC Universal
cast aluminum endbells, ball-bearing Voltage DC AC AC, DC (Control) AC, DC
construction and a tough, all-aluminum
or steel frame (depending upon motor Speed 1,000 - 5,000 1,350 - 3,400 1,000 - 5,000 8,000 - 20,000+
type) with a durable powder coat finish - Horsepower Medium Low-Medium High Very High
adding a refined appearance to a tough Efficiency 60% - 70% 40% - 80% 65% - 80% 55% - 70%
motor.
Life Medium Very High Very High Low
• With industry standard designs, Gro- Maintenance Medium Very Low Very Low High
schopp motors are compatible with Noise Medium Quiet Very Quiet Noisy
most OEM applications. Speed Regulation Fair Good Excellent Poor
• Each of these motors, gearboxes and
gearmotors can be customized to fit Starting Torque Very High Low - Medium Very High High
your application. Let our experienced
team of engineers develop a creative
solution for your application.
• Our technical team is experienced
in providing innovative designs and
custom solutions for all of your gear-
motor needs.
Planetary Parallel Shaft Right Angle Right Angle
Explore Our Products
Gears Spur or Helical Spur or Helical Worm Bevel
Typical Usage Intermittent Continuous Intermittent Continuous/Intermittent
Max Input Speed 3500 4000 2800 3500
Max Torque High Medium Medium High
Efficiency 65-95% 40-90% 30-80% 60-90%
Noise Low Medium Medium Medium
Limitations
Thermal/Mechanical Mechanical Thermal Mechanical
Back driveability Good Good Ratio Dependent Good

4. Quality Assurance
• Registered to the ISO 9001:2008 standard and supported at all levels of the organization
• Inspection Capabilities: Inspection Technology
- 3 coordinate measuring machines
• Automated Coordinate Measure Machine
- 2 OGP visual inspection systems
• Manual Coordinate Measuring Machine
- VARI-Roll gear inspection equipment • SmartScope 250 Video Metrology System
- Gage calibration traceability to NIST • Instron 32000 Rockwell Hardness Tester
- Use of APQP procedures if required • SmartScope 500 Video Metrology System
• Data Acquisition and Analysis: • Leica-Sony Microschope with Capture Tech-
- Statistical process control nology
- Capability studies
- Gage repeatability & reproducibility Agency Approvals
- Measurement system analysis
• UL - Recognized component motor under file
• Enforce document conformity and ensure that products, both purchased and manufactured, are in compli- E74627, evaluated to UL1004
ance with all agency, regulatory and environmental standards: RoHS, Canadian Environmental Protection • CSA - Evaluated to CSA standard C22.2 No.
Act, RML, WEEE, REACh, CE, UL and IMDS. 100 by UL (motors will carry CUL mark, not
- UL: Recognized component motor under file E74627, evaluated to UL 1004 CSA mark
- CSA: Evaluated to CSA standard C22.2 No.100 by UL (motors will carry CUL mark, not CSA mark) • CE - Evaluated to CE standard IEC60335-1
- CE: Evaluated to CE standard IEC6033501 by UL (addition of CE mark requires sligh modifications) by UL (addition of CE
- RoHS: Motors can be specified to be RoHS compliant marke requires sligh ISO 9001:2008
modifications)
• Compliance with ISO 9001 ensures that Groschopp meets customer requirements relating to all qulaity, AGE
MENT
• RoHS - Motors can
SY
AN
M
regulatory and environmental requirements.
ST
D QUALITY
EM
be specified to be
• Groschopp strives to meet or exceed our customers expectations by providing innovative products, design RoHS compliant
FIE
and manufactured in an environment focused quality awareness and continual improvement.
TI
R
CE
REGISTERED
Integrated Custom Motion Solution

5. Engineering
• Early Design Involvement
• Competencies Tools For You - All available online www.groschopp.com
- AutoCAD 2D
- SolidWorks 3D STPe Calculator - Simplifies fractinoal horsepower
- MotorTec design software motor and gearmotor selection. It quickly calculates
- Integrated gear software speed, torque and power and accurately converts units
- Motor design capabilities for AC, PM, brushless anD universal motors of measurement to help you find your specifications. It
- Planetary, parallel shaft, worm, powdered metal and will also calculate the efficiency and utility costs of run-
ning the motor or gearmotor in an application. This is a
steel gear design
“free-ware” program with no obligations of registration
• Finite Element Analysis for Mechanical and Magnetic Problems necessary to use it. Find the downloadable and online
• Prototyping versions at www.groschopp.com/about-stp-calculator/
• Motor Performance Testing
- Motor horsepower testing Motor Match TM - our online product finder Accurately
- Motor thermal testing matches you entered motor/gearmotor specifications
- Motor sound analysis with the 10 Groschopp products that most closely meet
- Gearbox yield strength - testing up to 5000 in.-lbs. your entered specifications
• Gearbox Performance Testing 3D Solid Model
3D SolidModel images - performance curves, 2D out-
- Gearbox efficiency testing line drawings all availbable at www.groschopp.com
downloads
- Gearbox thermal testing FREE ON EVERY PRODUCT PAGE
- Gearmotor life testing
- Gearbox sound analysis testing

6. Manufacturing
Capabilities
• Gear inspection equipment
• Complete motor winding
• Complete motor assembly
• Gear & shaft hobbing
• Gearbox Assembly
• CNC machining
• Full tool room capabilities for prototyping
• FastTrack TM 48 hour small order turn-around
When you partner with Groschopp, you will find a dedication to turn challenges into
high-value opportunities. To do this, we very often move beyond stand-alone prod-
ucts to develop the kind of custom, integrated solutions that drive both efficiency
and profitability.
Groschopp has been the standard in excellence for more than 70 years. Our repu-
tation for superior engineering craftsmanship is matched only by our commitment
to provide customers with the best, most dependable and cost-effective solutions
possible - ranging from full OEM prototyping to highly technical performance as-
sessments.
Integration Solutions
Working with you, our team will organize the project and determine the most ef-
ficient and cost-effective way to get your project done. WIth Groschopp Integration
you can see the results in:
• Reduced product development cycle time
• Reduced number of vendors and interactions
• REduced number of parts you must carrry in inventory
• Assured quality of the assembly
• Optimized and tested performance
Do you need an Integrated Solution?

7. Industry Breakdown
“Turning Quality” for Extreme Environments
• Material Handling
• Commercial & Industrial Tools
• Military Applications
• Packaging & Conveyor Machinery
• Food
Application Considerations
• Low/high temperature
• Standard ambient temperature
• Sealed bearings
• Temperature (ovens/commercial cooking equipment)
• Vibration
• Starting/stopping heavy loads
• Start-up torque
• Continuous vs. intermittent duty
• Harsh environment (IP66/IPX4) ratings
• Food compatible parts
Create Possibilities for Innovation
We have lots of ideas that stem from our portfolio of sucessful projects and extensive custom engineering abilities. Leveraging our extensive
experience with materials and processes we can speed your product to market:
• Aluminum, zinc and iron castings
• Steel stampings and aluminum stampings and extrusions
• Plastic injection modling
• Metal weldments
• Powedered metal gears
• Custom wire harnesses
• Metal finishes, including E-coat, powerder coat, anodizing, chromate and custom painting
• High-tech materials and special manufacturing processes

8. Case Studies
Medical Bed: Quiet, Synchronized Motion, Dual Output Gearmotor Deliveres
Highly specialized surgical procedures such as spinal, joint replacement and orthopedic trauma surgery require auto-
mated operating room tables that can be positioned with extreme accuracy. Just as important as positional accuracy are
high torque output and quiet operation, in a compact gearmotor solution that can drive up to a 500 pound load. When
one of the world’s leading designers and manufacturers of such innovative medical products was faced with such a
challenge, they partnered with Groschopp to tackle this tough job.
The Challenge
• Gearmotor needed to drive two positionally synchronized arms on a surgical table
• High torque output, intermittent duty for loads up to 500 pounds
• Quiet operation for medical/OR environment
• 20 VDC power supply limitation
The Solution
• Permanent magnet DC motor customized for high torque and low noise
• Two planetary speed reducers driven by one common motor shaft
• Special speed reducer component configuration and alignment to minimize noise
http://www.groschopp.com/category/applications/medical-equipment/?a=740
View Full Story
Grain Hopper
This OEM is a premier supplier to the agricultural equipment industry. They had a new product design for an automated hopper motor
assembly to retrofit grain trailers and wagons.
The Challenge
• Ingress protection (IP) against dust and particulates (meet or exceed IP66 ratings)
• HIgh vibration, harsh environment package
• HIgh torque output for intermittent loads
• 12 VDC, 100A power supply limitation
The Solution
• Permanent magnet DC motor operating at 12V, 100 Amp current limit
• HIgh efficiency planetary speed reducer with strengthened output gears
• Special corrosion protection features and rugged duty package enhancements
http://www.groschopp.com/category/applications/agriculture/?a=750
View Full Story

9. Case Studies
Plastic Injection Feeder
A manufacturer or high quality volumetric additive plastic injection feeds and blending systems for plastic augers came to Groshcopp
looking for a variety of motors for multiple applications. Unsure of their exact specifications, Groschopp engineers helped the manufac-
turer narrow their focus to a few specific motors and identitfy their specifications to pinpoint which gearmotors would best meet their
needs. The gearmotors needed to function reliably in a heated rotomold process, while meeting the customer’s demand to drive a preci-
sion feed auger into varying size molds.
The Challenge
• AC/DC voltages
• Short lead time
• Varying reducer sizes for multiple applications
The Solution
• 90 VDC or 115 VAC motor with a parallel shaft gearbox
• Three different size options
• 48 hour prototype turn-around time for proof of concept
http://www.groschopp.com/category/applications/packaging/?a=2704
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Milk Shake Blending Machine
A maker of commercfial food preparation equipment needed a motor to be used to power a milk shake blending machine
The Challenge
• The motor must be able to stand up to the difficult environment of a fast food restaurant
• Continuous duty for long periods of time
• In blending ice cream, the motor must be sealed against splashing liquids
• Must be able to withstand frequent cleaning
• Needed to fit in custom housing
The Solution
• Permanent magnet DC motor with cusom endbells
• Extended stainless steel shaft and sealed bearings
• Special windings and custom power cord were used to meet the customer’s specifications
http://www.groschopp.com/category/applications/commercial-food-and-beverage/?a=539
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