Piston Cups

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Rocket Seals, a leading seal and O-Ring specialist for over 60 years, supplies piston cups for all industrial applications. We represent the leading manufacturers in the industry and continuously update our inventory to meet the changing needs of industrial applications. We serve the OEM, distributor, and MRO markets.

Piston Cup Applications 

Piston cups provide a mechanical sealing surface on the edge of hydraulic and pneumatic piston heads, plungers, and rams. Piston cups can include a hole in the center of the cup.

Our product line includes:

  • CS style– Piston cups that can withstand pressure up to 2,500 psi, temperatures from -35°F to 220°F, and speeds of 1.5 ft./second.
  • CT style– Piston cups designed for low pressure applications that can withstand pressure up to 150 psi, temperatures from -40°F to 220°F, and speeds of 3 ft./second.
  • DAPC style– Double-acting piston cups that can withstand pressure up to 800 psi, temperatures from -40°F to 220°F, and speeds of 3 ft./second.

We offer same-day shipping for many parts and perform quality checks of every order, so you know that your piston cups will meet your application specifications. Rocket Seals has the capabilities to manufacture quantities from small orders to large production runs and can certify materials and manufacturing processes to industry standards if required. We offer custom kitting and assemblies.

Industry Served 

Our staff provides superior customer service from your first call through delivery, offering technical expertise and assistance with product selection to ensure that your piston cup meets or exceeds your expectations. We have experience working with customers in all industries, including manufacturing, processing, defense, power generation, agricultural, water treatment and filtration, hydraulics, fluid motion, heavy truck, automotive, aerospace, and power sports.

Contact Rocket Seals today to see how we can solve your manufacturing or MRO challenges.

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