Cylinder Usage and Maintenance Guide: The Key to Ensuring Efficient and Stable Operation

1. Basic Understanding of Cylinders

A cylinder (also known as an air cylinder) is a mechanical device that converts compressed air energy into linear motion, mainly consisting of a cylinder barrel, piston, piston rod, seal, and end cap. It consists of a cylindrical shell or barrel, a piston, and various sealing elements. When compressed air enters the cylinder through the air inlet, it exerts pressure on the piston, causing it to move along the length of the cylinder. This linear motion can be used to perform a variety of tasks, such as pushing, pulling, lifting, and rotating objects.

Cylinders are widely used in automation, manufacturing, and various industrial processes. They are often used to achieve controlled motion in mechanical equipment. The design and construction of cylinders vary depending on factors such as the required force, stroke length, speed, and environmental conditions.

2. Key points for cylinder selection

Basic parameter matching

Cylinder diameter selection: calculated according to the required thrust (F=P×A, P is air pressure, A is piston area)

Stroke determination: actual required stroke + 10% safety margin

Working pressure: standard 0.4-0.6MPa, maximum not exceeding 0.8MPa

Ambient temperature: ordinary cylinders are suitable for -10℃~80℃, special models can reach -40℃~150℃

Selection for special working conditions

Clean environment: stainless steel material + low friction seals

Corrosive environment: anodizing or PTFE coating

High-precision occasions: magnetic ring cylinder + position sensor (repeat accuracy ±0.1mm)

High-speed application: buffer cylinder (special buffer is required when the speed is ≥500mm/s)

3. Installation and commissioning specifications

Key points for mechanical installation

Coaxiality adjustment: deviation between piston rod and load ≤0.1mm/100mm

Support spacing: additional intermediate support is required when stroke >500mm

Anti-rotation structure: use guide device or double cylinder in parallel

Typical error cases:

Unused floating joint leads to partial load

Fixed bolts are not tightened in diagonal order

Air circuit connection specifications

Pipe cleaning: Newly installed systems need to be purged with compressed air for 30 minutes

Filter selection: filtration accuracy 40μm (ordinary) 5μm (precision)

Lubrication management:

Oil mist device installation distance ≤5m from cylinder

ISOVG32 pneumatic special oil is recommended

It is strictly forbidden to add lubricating oil to oil-free cylinders