PFS522

Used for Emergency Stop & Holding Applications. 85 PSI (5.9 Bar) Release Pressure.

Aluminum Construction | Dual Belleville Disc Spring Stacks | Quick Change Pad Feature | Fits on Brake Discs Diameters from 20 inches to Unlimited Diameter | Non-Asbestos Friction Material | Spring Stacks in Parallel | 12,236 lb. Maximum Tangential Force | 220,651 in. lbs. F using 40 inch Disc Diameter | 62.0 in. sq. total friction pad area | 22.0 cu. in. of wearable material | 27,192 lb. Clamping Force | 12.0 in. piston diameter x 3 stage

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PFS522 (Single Acting) Pneumatic Spring Applied Series

Product # Model Description Additional Info Disc Thick. (in.) Tangential Force
4252-0080 PFS522SE Single Acting, Floating Mount, Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Release 1/2 12236 lbf, (54428 N)
4252-0081 PFS522SJ Single Acting, Floating Mount, Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Release 5/8 12236 lbf, (54428 N)
4252-0082 PFS522ST Single Acting, Floating Mount, Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Release 3/4 12236 lbf, (54428 N)
4252-0083 PFS522SO Single Acting, Floating Mount, Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Release 1.0 12236 lbf, (54428 N)
4252-0084 PFS522SQ Single Acting, Floating Mount, Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Release 1-1/8 12236 lbf, (54428 N)

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