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SPGW heary duty piston seals are designed for double acting hydraulic cylinders used in heary duty applications. They consist of PTFE ring, 2 POM support ring and NBR pressure ring.  Some advantages are its simple design, high linear velocity values, non-bonding property on the surface in long static cases, low friction, wider permissible gaps and long life sevice.  Therefore, SPGW is very suitable for heary duty applications.          

Technical Data      
Pressure: 400 Bar      
Temperature: with NBR Square-ring: -35 to +105     
Speed: 1.5m/s       
Media: Hydraulic oils (mineral oil-based)       
Material: Profile seal: PTFE with Bronze / Back-up ring: POM / Pressure ring: NBR      
Color: Profile seal: Green/Brown / Back-up ring: Black / Pressure ring: Black      
High sliding speed      
Low friction, free of stick-slip      
Simple groove design      
Increase clearance possible      

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