CH81 Back-up ring

CH81 is a back-up ring designed to reduce the permissible sealing gap of the O-rings both for static and dynamic applications. CH81 back-up ring can be used with 0.20 mm permissible sealing gap up to 500 bar. For special applications, PTFE back-up ring can be produced on special requests.

PROFILE

PRODUCT ADVANTAGES ​

• Works at high pressure
• Easy assembly
• Able to work in hard conditions
• Wide range of dimensions
• Used for rod and piston

APPLICATION

• All types of hydraulic cylinders
• Injection moulding machines
• Mining equipment
• Marine hydraulics
• Loading platforms
• Cranes
• Heavy duty applications

INSTALLATION:
Easily assembled into the housing by hand. CH81 back-up ring is in non split form. In case of a difficulty during installation the back-up ring can be cut carefully in a 30° angle and assembled afterwards. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation the back-up ring must be oiled with system oil.