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With 5 parts design our MHM compact seals are used as piston seal for double acting cylinders.
MHM has a NBR ring; 2 polyester elastomer back-up rings used for decreasing permissible gap in both sides; 2 POM rings as guide besides them. 

Technical Data      
Pressure: 400 Bar      
Temperature: -35  to +110     
Speed: 0.5m/s       
Media: Hydraulic oils (mineral oil-based)       
Material: Profile seal: NBR / Back-up ring: polyester elastomer / Guider ring: POM      
Color: Profile seal: Black / Back-up ring: Yellow / Guider ring: Yellow      
Good sealing effect, also suitable for holding cylinders      
Insensibility against shock loads and pressure peaks      
Capable of installation in closed grooves ofr reduced machining costs      
Easy installation      

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