PFS520

Used for Emergency Stop & Holding Applications. 75 PSI (5.2 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 | 6,419 lb. Maximum Tangential Force | 110,325 in. lbs. F using 40 inch Disc Diameter | 62.0 in. sq. total friction pad area | 22.0 cu. in. of wearable material | 14,264 lb. Clamping Force | 12.0 in. piston diameter x 2 stage

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PFS520 (Single Acting) Pneumatic Spring Applied Series

Product # Model Description Additional Info Disc Thick. (in.) Tangential Force
4252-0093 PFS520SE Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 75 PSI Release 1/2 6419 lbf, (28565 N)
4252-0094 PFS520SJ Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 75 PSI Release 5/8 6419 lbf, (28565 N)
4252-0095 PFS520ST Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 75 PSI Release 3/4 6419 lbf, (28565 N)
4252-0096 PFS520SO Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 75 PSI Release 1.0 6419 lbf, (28565 N)
4252-0097 PFS520SQ Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 75 PSI Release 1-1/8 6419 lbf, (28565 N)

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