Rod Buffer Seals

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rod buffer sealsRocket Seals, a leading seal and O-Ring specialist, supplies rod buffer seals 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.

Rod buffer seals are engineered to provide a secure seal for the sliding motion between a cylinder head and piston rod, withstanding changes in pressure during operation while maintaining the seal. They also provide a thin lubrication film on the piston rod that protects against corrosion while keeping the rod and wipers lubricated.

Our product line includes:

  • DYR style – U-cup shaped urethane rod buffer seal that can withstand pressure up to 8,000 psi, temperatures from -40°F to 230°F, and speeds of 3 ft./second. Available in standard sizes.
  • KR and MKR styles – PTFE rod buffer seal with an external rubber energizer that can withstand pressure up to 5,000 psi, temperatures from -40°F to 220°F, and speeds of 12 ft./second. KR is available in standard sizes and MKR is available in metric sizes.
  • RBS style – Rectangular urethane rod buffer seal that can withstand pressure up to 5,000 psi, temperatures from -40°F to 200°F, and speeds of 3 ft./second. Available in standard sizes.
  • MIR style – Polyurethane rod buffer seal configured with a flat single seal that can withstand pressure up to 7,200 psi, temperatures from -30°F to 230°F, and speeds of 1.5 ft./second. Available in metric sizes.
  • MYKR style – PTFE rod buffer seal with an external nitrile energizer, designed with special slots in the outer ring to ensure an excellent seal. The MYKR rod buffer seal can withstand pressure up to 5,000 psi, temperatures from -40°F to 220°F, and speeds of 12 ft./second. Available in metric sizes.
  • MYR style – U-cup shaped urethane rod buffer seal that can withstand pressure up to 7,000 psi, temperatures from -40°F to 220°F, and speeds of 3 ft./second. Available in metric sizes.

We offer same-day shipping for many parts and perform quality checks of every order, so you know that your critical parts 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.

Our staff provides superior customer service from your first call through delivery, offering technical expertise and assistance with product selection to ensure that your rod buffer seal meets or exceeds your expectations. We have experience working with customers in all industries, including manufacturing, chemical processing, defense, power generation, agricultural, water treatment and filtration, hydraulics, fluid motion, heavy truck, automotive, aerospace, oil and gas, medical and life sciences, food and beverage, electronics and industrial controls, refineries, logistics and supply chain suppliers and transportation.

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

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