Cylinder type names and pictures

Classification of cylinders

The structural composition of an ordinary cylinder is shown in the figure below. It is mainly composed of a front cover, a rear cover 9, a piston 6, a piston rod 4, a cylinder barrel 5 and other parts.
There are many types of cylinders. Generally, they are classified according to the direction of compressed air acting on the piston surface, structural features and installation methods. The type and installation form of the cylinder are shown in the table below.







Ordinary cylinder


1—Combined dust ring;—Front end cover;3—YX sealing ring for shaft;4—Piston rod;5—Cylinder barrel;


6—Piston;7—YX sealing ring for hole;8—Buffer regulating valve;9—Rear end cover





Types of cylinders in the table below






Category


Name


Simplified drawing


Features




single acting cylinder


plunger cylinder





Compressed air can only move the plunger in one direction;it can be reset with the help of external force or gravity.




Piston cylinder





Compressed air can only move the piston in one direction;it can be reset with the help of external force or gravity.







Compressed air can only make the piston move in one direction;it is restored with the help of spring force;used in situations with small strokes




Diaphragm cylinder






A cylinder with a diaphragm instead of a piston. One-way action;reset with the help of spring force;


The stroke is short;the structure is simple, and the inner wall of the cylinder does not need to be processed;


The diameter must be increased in proportion to the stroke.


If there is no spring, compressed air is used to reset the cylinder, which is a double-acting diaphragm cylinder.


The diaphragm of a long-stroke membrane cylinder is rolled and is often called a rolling (bellows) cylinder.





Double acting cylinder



Ordinary cylinder






Compressed air is used to move the piston in two directions. The piston stroke can be selected according to actual needs, and the force and speed acting in both directions are different.




Double piston rod cylinder





Compressed air moves the piston in both directions with equal speed and stroke.




Non-adjustable buffer cylinder





A buffer device is provided to decelerate the piston when it approaches the end of the stroke to prevent impact. The buffering effect cannot be adjusted.




Adjustable buffer cylinder





The deceleration and buffering effects of the buffer device can be adjusted as needed.










Category


Name


Simplified drawing


Features