What is a Pneumatic Cylinder?

Pneumatic cylinders, also known as air cylinders, are the final component of pneumatic or compressed air control systems. Devices that convert compressed air energy into mechanical energy are air or pneumatic cylinders.

As a result of the mechanical energy, linear or rotary motion is produced. In the pneumatic system, the pneumatic air cylinder acts as the actuator. As a result, it is called a pneumatic linear actuator.

By selecting the right type of pneumatic cylinder for an application, you can ensure its long-term success and improve its performance.

Basic Components of a Pneumatic Cylinder

Principle

With the pneumatic cylinder, compressed air energy is converted into linear or rotary motion by converting pressure into mechanical energy.

Single Acting Cylinder

A certain amount of pressure is applied to only one side of the piston. By acting in one direction, an external force, such as a spring, returns the movement to its normal state.

Types of Single Acting Cylinders

  • Push type and
  • Pull type.

Push type Single-acting Cylinder

To displace the piston from the cylinder, compressed air enters. When the pressure is removed, the spring automatically retracts the piston to its home position.

Pull type Single-acting Cylinder

The piston is pulled inside the cylinder by compressed air. When compressed air passes through the port, the piston in the cylinder retracts. At the end of the cylinder is the pressure port.

Double Acting Cylinder

The cylinder is supplied with a certain amount of pressure on both sides. The piston rod of the cylinder moves in two directions due to the force exerted by the compressed air.

Telescopic Cylinder

In hydraulic applications, telescopic cylinders are widely used in both single-acting and double-acting cylinders. Generally, pneumatic telescopic cylinders are not used in heavy equipment, such as cranes and dumpers.

  • Tie rod cylinder
  • Flanged type
  • One-piece welded
  • Threaded end

Tie rod Cylinder

There are tie rods for use with all types of cylinders regardless of their loads - heavy, medium, or low.

Tied rods are more effective at protecting cylinders from damage when an impact or shock loads are possible.

Flanged Type

A heavy-duty cylinder similar to a tie rod is used in these applications.

Depending on the necessity, customers can order a front flange, a back flange, or both front and back flanges.

One-piece Welded

A cast-in-place body with welded or crimped ends is referred to as this type.

Threaded End

The ends are threaded onto the tube either from the outside or the inside of the tube in this type of construction.

Double-acting Cylinders

The double-acting cylinders operate on the following principle:

  • Through rod Cylinder
  • Cushion end Cylinder
  • Tandem Cylinder
  • Impact Cylinder
  • Cable Cylinder
  • Rotary or turn cylinder

Through rod Cylinder

This case involves extending the piston rod on both ends. It will ensure equal force and speed on both sides of the cylinder.

Cushion End Cylinder

This piston has a cushioned nose near one or both ends for gradual deceleration near the ends of the stroke.

The piston can be cushioned with rubber buffers to absorb shock and prevent impact on the end covers.

Tandem Cylinder

Due to the series arrangement of two cylinders, the force obtained from each cylinder is doubled.

Impact Cylinder

A piston rod designed specifically for accelerating high force or impact is used in this case.

Cable Cylinder

The piston rod is eliminated in this case by attaching cables to both ends of the cylinder. Rodless cylinders are also known as rodless cylinders. It is used in applications that require long strokes to use cable-type cylinders.

Rotary or Turn Cylinder

The piston rod has a rotary profile against the worm wheel and provides linear motion.

Cylinder Specifications

  • Cylinder Bore
  • Piston rod diameter
  • stroke length
  • mounting style
  • pressure range
  • force output at maximum pressure
  • Cylinder cushioning (at one or both ends)
  • Standard operating temperature
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