Series R
		• Product Detail Space Saving Applications • 1 3/4" - 3" Bores • 250 PSI Pneumatic • 50 PSI Non-Shock Hydraulic Material And Design Specifications Tube: • 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. Piston: • 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. Cushion: • 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)