SWKS Seal, with over 10 years experience, is one of the leading oem cup seals for piston head manufacturers and suppliers in China. And we also offer the customized service catering to your special requirement. Please be free to buy the rubber products with competitive price from us.
OEM cup seals for piston head
Piston cups are used on piston heads, plungers and rams. Piston cups are very economical due to the long life-span, simple design and wide-spread application. Since the "cup" side of the piston cup is installed towards the pressure element, it is easy to maintain a tight mechanical seal.
Homogenous piston cups are designed for low pressure applications. For medium duty applications, adding fabric reinforcement will prevent extrusion and maintain the seal between piston head and cup.
Standard Piston cups are made of 80 durometer Nitrile. 70 and 90 durometer are also available, as well as a variety of other compounds.
Available in the following Materials
| Buna Nitrile | Carboxylated Nitrile | EPR, EPDM, EPT | Viton |
| Fluorocarbon | Silicone | Neoprene | Polyurethane |
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