Series R

Products / Series R

-OEM Economy Line
-1 1/4" - 8" Bores
-250 PSI Pneumatic
-250 PSI Non-Shock Hydraulic

Material And Design Specifications


6063-T832 grade aluminum alloy with hard coated I.D. This anodic coating provides extreme hardness, excellent wear, low coefficient of friction, and high corrosion resistance to ensure longer, trouble-free cycle life.

Head and Cap:

Precision machined from extruded 6061-T6 grade aluminum alloy and hard coated for corrosion resistance as standard.

Piston Rod:

Hard chrome plated steel ground and polished to a smooth finish.

Rod Bushing:

Continuous cast SAE 660 grade bronze bushing is piloted into the head to provide maximum load bearing support.


High grade aluminum alloy.

Piston Seals:

Block-Vee type, Buna N material is furnished as standard.

Piston Bearing Strip:

A low friction, dimensionally stable nylon wear band constitutes an excellent bearing surface.

Rod Seal:

Block-Vee type is self-adjusting to ensure proper seal.

Rod Wiper:

Lip type urethane seal cleans piston rod and prevents foreign particles from entering cylinder.


Self-adjusting urethane cup moves into the head/cap to insure a positive seal and allows air to meter across the cushion screw. This method provides a fast breakaway and more precise adjustment. (Optional)

Repair Kits

Repair kits containing all wearable replacement parts are available.

Please specify cylinder model, single or double ended, type of cushion, air or hydraulic operated and any options which affect repair kit.

The R240 nose mount cylinder requires a special size rod bushing and bushing retaining ring. Please specify nose mount when ordering this model repair kit.

Standard Repair Kit Contains: P/N F-9, F-10, 14, 15, 16, 18, 19, 20 & 28.

Cushion Repair Kit Contains:Standard repair kit plus P/N F-17.