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Pneumatic control
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Basic info about pneumatic and electro-pneumatic

Basic info about pneumatic and electro-pneumatic

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Pneumatic control Presentation Transcript

  • 1. P NEUMATIC C ONTROL Mohamad Maaroff Bahurdin 019 4708987
  • 2. Contents
    • Characteristics and applications of pneumatics
    • Basic Requirements for Pneumatic System
    • Pneumatic Cylinders & Air Motor
    • Pneumatic Valves
    • Basic Pneumatic Circuit
    • Automation & Principle of Pneumatic Diagram
  • 3. Pneumatics
    • is the use of pressurized air to effect mechanical motion.
    • Commonly is used in industry.
    • It also has applications in, among other things, dentistry, construction, and mining.
    • Pneumatic power users need not worry about hazardous leakages as the fuel is commonly just air, although other compressed gases, such as carbon dioxide, may be used.
  • 4. Pneumatics in review
    • Played an important role as a technology in the performance of mechanical work. It is also used in the development of automation solutions.
    • The technological progress made in material, design and production processes has further improved the quality and diversity of pneumatic components and thereby contributed to their widely spread use in automation.
  • 5. Pneumatics in review (cont.)
    • The pneumatic cylinder has a significant role as a linear drive unit, due to its
      • relatively low cost,
      • ease of installation,
      • simple and robust construction and
      • ready availability in various sizes and stroke lengths.
  • 6. Pneumatics in review (cont.)
    • The pneumatic cylinder has the following general characteristics:
      • Diameters 2.5 to 320 mm
      • Stroke lengths 1 to 2000 mm
      • Available forces 2 to 45000 N at 6 bar
      • Piston speed 0.1 to 1.5 m/s
  • 7. Pneumatics in review (cont.)
    • Pneumatic components can perform the following types of motion:
      • Linear
      • Swivel
      • Rotary
  • 8. Pneumatic Application
    • Some industrial applications employing pneumatics are listed below:
      • General methods of material handling:
        • Clamping
        • Shifting
        • Positioning
        • Orienting
        • Branching of material flow
  • 9. Pneumatic Application
      • General applications:
        • Packaging
        • Filling
        • Metering
        • Locking
        • Driving of axes
        • Door or chute control
        • Transfer of materials
        • Turning and inverting of parts
        • Sorting of parts
        • Stacking of components
        • Stamping and embossing of components
  • 10. Pneumatic Application
  • 11. Pneumatic Application
  • 12. Pneumatic Application
    • Pneumatics is used in carrying out machining and working operations.
      • For example:
        • Drilling
        • Turning
        • Milling
        • Sawing
        • Finishing
        • Forming
        • Quality control
  • 13. Advantage of Pneumatic Compressed air is relatively insensitive to temperature fluctuations. This ensures reliable operation, even under extreme conditions. Temperature Compressed air can be stored in a reservoir and removed as required. In addition, the reservoir can be transportable. Storage Air can be easily transported in pipelines, even over large distances. Transport Air is available practically everywhere in unlimited quantities. Availability
  • 14. Advantage of Pneumatic Compressed air is a very fast working medium. This enables high working speeds to be attained. Speed The operating components are of simple construction and therefore relatively inexpensive. Components Unlubricated exhaust air is clean. Any unlubricated air which escapes through leaking pipes or components does not cause contamination. Cleanliness Compressed air offers no risk of explosion or fire. Explosion proof
  • 15. Disadvantage of Pneumatic The exhaust air is loud. This problem has now, however been largely solved due to the development of sound absorption material and silencers. Noise level Compressed air is economical only up to a certain force requirement. Under the normal working pressure of 600 to 700 kPa (6 to 7 bar) and dependent on the travel and speed, the output limit is between 40 000 and 50 000 Newtons. Force requirement It is not always possible to achieve uniform and constant piston speeds with compressed air. Compression Compressed air requires good preparation. Dirt and condensate should not be present. Preparation
  • 16.