SPN Excavator Hydraulic Rod Oil Seal With Copper Powder

SPN Excavator Hydraulic Oil Seal Rod Seals SPN With Copper Powder

Specification
 

Application
 

Excavator Seal Kit Describe

Piston Seals or Piston Rings are used in hydraulic cylinders for fluid sealing and are designed to ensure that pressurised fluid does not leak across the cylinder head as the system pressure pushes the piston down the cylinder bore.
The choice of piston seal is decided by the way in which the cylinder operates. For a cylinder which is exclusively single-acting, capable of sealing dynamic pressure from one side (unidirectional), it is always best to choose the type of seal designed to provide optimum sealing qualities for single-acting functions. The best sealing capacity of a double-acting cylinder, capable of sealing dynamic pressure from both sides (bidirectional), is achieved by choosing a double-acting seal. A piston design where two single-acting seals on the piston for a double-acting cylinder are used can easily give rise to a breakdown. The reason is that a very high pressure can be trapped between the seals. Piston seals, both single and double-acting, can be designed for and used with integrated or separate back-up rings and guide rings.

Features
 

Hydraulic Piston seal is installed on the piston, the main function is to seal the gap between the piston and the cylinder and prevent the hydraulic oil from leaking. The piston seal is the main seal in the hydraulic cylinder, bearing pressure in both directions, and is one of the most important seals that the hydraulic cylinder can withstand the pressure value. The main requirements for piston seal are good sealing effect, good pressure holding effect under static state, strong pressure bearing capacity during movement, anti-extrusion, low friction coefficient, long service life, etc.