W.C. Branham - Hydraulic Spring Applied Brakes

Ideal for emergency stopping and holding of industrial machinery and off-highway vehicles

Active minimum hydraulic pressure starting at 200 psi, depending on series type, releases the brake piston (pulls the brake piston away) from the brake disc rotor and stores that energy in a Belleville disc spring stack. Then, at loss of that hydraulic pressure the energy stored in the disc spring stack is emitted driving the brake piston and engaging the disc rotor for positive stopping.

New FS500 Series - our largest hydraulic spring applied brake is here. See specs.

New FS525 Series - 200 PSI Pressure Release Brakes. Offering the same braking torque as the 750 PSI Press Release FS500 Series Brakes.

Specifications

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for more details)

FS38 Series

Single Belleville Disc Spring Stack | 233 lb. Tangential Force at zero friction pad wear | 1719 in. lbs. F. braking torque using 16 inch disc diameter at maximum tangential force | 2.0 sq. in. total friction pad area | Unlimited disc diameter

FS47 Series

Single Belleville Disc Spring Stack | 465 lb. Tangential Force at zero friction pad wear | 3315 in. lbs. F. braking torque using 16 inch disc diameter at maximum tangential force | 4.0 sq. in. total friction pad area | 1033 lbs. clamping force | Unlimited disc diameter

FS200 Series

Dual Belleville Disc Spring Stacks | 929 lb. Tangential Force at zero friction pad wear | 6626 in. lbs. F. braking torque using 16 inch disc diameter at maximum tangential force | 2065 lb. maximum clamping force | 8.19 sq. in. total friction pad area | Up to 16 inch disc diameter

FS210S Series Low Pressure

200 PSI release pressure | Single Acting Dual Belleville Disc Spring Stacks | 1,859 lb. Tangential Force at zero friction pad wear | 4,720 lb. of Clamping Force | 26,273 in. lbs. F. braking torque using 30 inch disc diameter at maximum tangential force | 8.19 sq. in. total friction pad area | Unlimited brake disc diameter

FS400 Series

Dual Belleville Disc Spring Stacks | 2271 lb. Tangential Force at zero friction pad wear | 16,199 in. lbs. F. braking torque using 16 inch disc diameter at maximum tangential force | 8.19 sq. in. total friction pad area | 4130 lbs. clamping force | Up to 16 inch disc diameter

FS410S Series Low Pressure

288 PSI release pressure | Single Acting Dual Belleville Disc Spring Stacks | 2271 lb. Tangential Force at zero friction pad wear | 4130 lb. of Clamping Force | 32,096 in. lbs. F. braking torque using 30 inch disc diameter at maximum tangential force | 8.19 sq. in. total friction pad area | Unlimited brake disc diameter

FS500 Series

Double Acting Dual Belleville Disc Spring Stacks | Single Acting Single Belleville Disc Spring Stack | 3059 lb. Tangential Force at zero friction pad wear | 6798 lb. of Clamping Force | 41,112 in. lbs. F. braking torque using 30 inch disc diameter at maximum tangential force | 14.14 sq. in. total friction pad area | Sized for brake discs ranging from 14 inch diameter to unlimited.

FS510S and FS510D Series Low Pressure

400 PSI release pressure | Single Acting Single Belleville Disc Spring Stack or Double Acting Dual Belleville Disc Spring Stacks | 3059 lb. Tangential Force at zero friction pad wear | 6798 lb. of Clamping Force | 41,112 in. lbs. F. braking torque using 30 inch disc diameter at maximum tangential force | 14.14 sq. in. total friction pad area | Unlimited brake disc diameter

FS525 Series Low Pressure

200 PSI release pressure | Double Acting Dual Belleville Disc Spring Stacks | Single Acting Single Belleville Disc Spring Stack | 6,118 lb. Tangential Force at zero friction pad wear | 15,538 lb. of Clamping Force | 82,225 in. lbs. F. braking torque using 30 inch disc diameter at maximum tangential force | 14.14 sq. in. total friction pad area | Sized for brake discs ranging from 14 inch diameter to unlimited.

Engineering note: Spring applied brakes are intended for use as an emergency stop or static holding device. It is not suggested to use in continuous slip applications as torque capacity is directly related to friction pad wear.

Choose from: All, FS38, FS47, FS200, FS210 Low Press, FS400, FS410 Low Press, FS500S, FS500D, FS510 Low Press, FS510D Low Press, FS525D Low Press or FS525S Low Press Series

Products Available

Product #	Name	Description	Additional Info	Disc Thick. (in.)	Fluid Type
4004-0160	FS47AF	Single Acting, Floating Mount. Use Fixed Disc	Single Piston. Spring Applied 750 PSI Release	5/32	Hydraulic Oil
4004-0161	FS47BF	Single Acting, Floating Mount. Use Fixed Disc	Single Piston. Spring Applied 750 PSI Release	1/4	Hydraulic Oil
4004-0163	FS47L	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 750 PSI Release	3/8	Hydraulic Oil
4004-0164	FS200AF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 750 PSI Release	5/32	Hydraulic Oil
4004-0165	FS200BF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 750 PSI Release	1/4	Hydraulic Oil
4004-0166	FS200EF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 750 PSI Release	1/2	Hydraulic Oil
4004-0167	FS200A	Single Acting, Fixed Mount. Use Floating Disc	Dual Pistons. Spring Applied 750 PSI Release	5/32	Hydraulic Oil
4004-0168	FS200B	Single Acting, Fixed Mount. Use Floating Disc	Dual Pistons. Spring Applied 750 PSI Release	1/4	Hydraulic Oil
4004-0169	FS47EF	Single Acting, Floating Mount. Use Fixed Disc	Single Piston. Spring Applied 750 PSI Release	1/2	Hydraulic Oil
4004-0176	FS47B	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 750 PSI Release	1/4	Hydraulic Oil
4004-0178	FS47LF	Single Acting, Floating Mount. Use Fixed Disc	Single Piston. Spring Applied 750 PSI Release	3/8	Hydraulic Oil
4004-0180	FS200E	Single Acting, Fixed Mount. Use Floating Disc	Dual Pistons. Spring Applied 750 PSI Release	1/2	Hydraulic Oil
4004-0181	FS47A	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 750 PSI Release	5/32	Hydraulic Oil
4004-0182	FS47E	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 750 PSI Release	1/2	Hydraulic Oil
4004-0205	FS200LF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 750 PSI Release	3/8	Hydraulic Oil
4004-0260	FS200L	Single Acting, Fixed Mount. Use Floating Disc	Dual Pistons. Spring Applied 750 PSI Release	3/8	Hydraulic Oil
4004-0760	FS38SA	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 680 PSI Release	5/32	Hydraulic Oil
4004-0761	FS38SAF	Single Acting, Floating Mount. Used Fixed Disc	Single Piston. Spring Applied 680 PSI Release	5/32	Hydraulic Oil
4004-0762	FS38SB	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 680 PSI Release	1/4	Hydraulic Oil
4004-0763	FS38SBF	Single Acting, Floating Mount. Used Fixed Disc	Single Piston. Spring Applied 680 PSI Release	1/4	Hydraulic Oil
4004-0764	FS38SE	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 680 PSI Release	1/2	Hydraulic Oil
4004-0765	FS38SEF	Single Acting, Floating Mount. Used Fixed Disc	Single Piston. Spring Applied 680 PSI Release	1/2	Hydraulic Oil
4004-0766	FS38SL	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 680 PSI Release	3/8	Hydraulic Oil
4004-0767	FS38SLF	Single Acting, Floating Mount. Used Fixed Disc	Single Piston. Spring Applied 680 PSI Release	3/8	Hydraulic Oil
4004-0840	FS400A	Single Acting, Fixed Mount. Use Floating Disc	Dual Pistons. Spring Applied 1500 PSI Release	5/32	Hydraulic Oil
4004-0841	FS400AF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 1500 PSI Release	5/32	Hydraulic Oil
4004-0842	FS400B	Single Acting, Fixed Mount. Use Floating Disc	Dual Pistons. Spring Applied 1500 PSI Release	1/4	Hydraulic Oil
4004-0843	FS400BF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 1500 PSI Release	1/4	Hydraulic Oil
4004-0844	FS400E	Single Acting, Fixed Mount. Use Floating Disc	Dual Pistons. Spring Applied 1500 PSI Release	1/2	Hydraulic Oil
4004-0845	FS400EF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 1500 PSI Release	1/2	Hydraulic Oil
4004-0846	FS400L	Single Acting, Fixed Mount. Use Floating Disc	Dual Pistons. Spring Applied 1500 PSI Release	3/8	Hydraulic Oil
4004-0847	FS400LF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 1500 PSI Release	3/8	Hydraulic Oil
4005-0000	FS210SAF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 200 PSI Release	5/32	Hydraulic Oil
4005-0001	FS210SBF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 200 PSI Release	1/4	Hydraulic Oil
4005-0002	FS210SIF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 200 PSI Release	3/16	Hydraulic Oil
4005-0003	FS210SLF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 200 PSI Release	3/8	Hydraulic Oil
4005-0004	FS210SEF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 200 PSI Release	1/2	Hydraulic Oil
4005-0005	FS210SJF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 200 PSI Release	5/8	Hydraulic Oil
4005-0006	FS210STF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 200 PSI Release	3/4	Hydraulic Oil
4005-0007	FS210SOF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 200 PSI Release	1.0	Hydraulic Oil
4005-0008	FS210SQF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 200 PSI Release	1-1/8	Hydraulic Oil
4005-0010	FS410SAF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 288 PSI Release	5/32	Hydraulic Oil
4005-0011	FS410SBF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 288 PSI Release	1/4	Hydraulic Oil
4005-0012	FS410SIF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 288 PSI Release	3/16	Hydraulic Oil
4005-0013	FS410SLF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 288 PSI Release	3/8	Hydraulic Oil
4005-0014	FS410SEF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 288 PSI Release	1/2	Hydraulic Oil
4005-0015	FS410SJF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 288 PSI Release	5/8	Hydraulic Oil
4005-0016	FS410STF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 288 PSI Release	3/4	Hydraulic Oil
4005-0017	FS410SOF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 288 PSI Release	1.0	Hydraulic Oil
4005-0018	FS410SQF	Single Acting, Floating Mount. Use Fixed Disc	Dual Pistons. Spring Applied 288 PSI Release	1-1/8	Hydraulic Oil
4006-0000	FS525SB	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 200 PSI Release	1/4	Hydraulic Oil
4006-0001	FS525SL	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 200 PSI Release	3/8	Hydraulic Oil
4006-0002	FS525SE	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 200 PSI Release	1/2	Hydraulic Oil
4006-0003	FS525SJ	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 200 PSI Release	5/8	Hydraulic Oil
4006-0004	FS525ST	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 200 PSI Release	3/4	Hydraulic Oil
4006-0005	FS525SO	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 200 PSI Release	1.0	Hydraulic Oil
4006-0006	FS525SQ	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 200 PSI Release	1-1/8	Hydraulic Oil
4006-0020	FS525DB	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons, Spring Applied 200 PSI Release	1/4	Hydraulic Oil
4006-0021	FS525DL	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons, Spring Applied 200 PSI Release	3/8	Hydraulic Oil
4006-0022	FS525DE	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons, Spring Applied 200 PSI Release	1/2	Hydraulic Oil
4006-0023	FS525DJ	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons, Spring Applied 200 PSI Release	5/8	Hydraulic Oil
4006-0024	FS525DT	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons, Spring Applied 200 PSI Release	3/4	Hydraulic Oil
4006-0025	FS525DO	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons, Spring Applied 200 PSI Release	1.0	Hydraulic Oil
4006-0026	FS525DQ	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons, Spring Applied 200 PSI Release	1-1/8	Hydraulic Oil
4006-0028	FS510SB	Single Acting, Floating Mount. Use Fixed Disc	Single Piston. Spring Applied 400 PSI Release	1/4	Hydraulic Oil
4006-0029	FS510SL	Single Acting, Floating Mount. Use Fixed Disc	Single Piston. Spring Applied 400 PSI Release	3/8	Hydraulic Oil
4006-0030	FS510SE	Single Acting, Floating Mount. Use Fixed Disc	Single Piston. Spring Applied 400 PSI Release	1/2	Hydraulic Oil
4006-0031	FS510SJ	Single Acting, Floating Mount. Use Fixed Disc	Single Piston. Spring Applied 400 PSI Release	5/8	Hydraulic Oil
4006-0032	FS510ST	Single Acting, Floating Mount. Use Fixed Disc	Single Piston. Spring Applied 400 PSI Release	3/4	Hydraulic Oil
4006-0033	FS510SO	Single Acting, Floating Mount. Use Fixed Disc	Single Piston. Spring Applied 400 PSI Release	1.0	Hydraulic Oil
4006-0034	FS510SQ	Single Acting, Floating Mount. Use Fixed Disc	Single Piston. Spring Applied 400 PSI Release	1-1/8	Hydraulic Oil
4006-0035	FS510DB	Double Acting. Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 400 PSI Release	1/4	Hydraulic Oil
4006-0036	FS510DL	Double Acting. Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 400 PSI Release	3/8	Hydraulic Oil
4006-0037	FS510DE	Double Acting. Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 400 PSI Release	1/2	Hydraulic Oil
4006-0038	FS510DJ	Double Acting. Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 400 PSI Release	5/8	Hydraulic Oil
4006-0039	FS510DT	Double Acting. Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 400 PSI Release	3/4	Hydraulic Oil
4006-0040	FS510DO	Double Acting. Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 400 PSI Release	1.0	Hydraulic Oil
4006-0041	FS510DQ	Double Acting. Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 400 PSI Release	1-1/8	Hydraulic Oil
4500-0001	FS500DB	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 1500 PSI Release	1/4	Hydraulic Oil
4500-0002	FS500DL	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 1500 PSI Release	3/8	Hydraulic Oil
4500-0003	FS500DE	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 1500 PSI Release	1/2	Hydraulic Oil
4500-0004	FS500DT	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 1500 PSI Release	3/4	Hydraulic Oil
4500-0005	FS500DO	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 1500 PSI Release	1.0	Hydraulic Oil
4500-0006	FS500DQ	Double Acting, Fixed Mount. Use Fixed or Floating Disc	Dual Pistons. Spring Applied 1500 PSI Release	1-1/8	Hydraulic Oil
4500-0007	FS500SB	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 1500 PSI Release	1/4	Hydraulic Oil
4500-0008	FS500SQ	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 1500 PSI Release	1-1/8	Hydraulic Oil
4500-0014	FS500SL	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 1500 PSI Release	3/8	Hydraulic Oil
4500-0015	FS500SE	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 1500 PSI Release	1/2	Hydraulic Oil
4500-0016	FS500ST	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 1500 PSI Release	3/4	Hydraulic Oil
4500-0017	FS500SO	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 1500 PSI Release	1.0	Hydraulic Oil
4500-0019	FS500SJ	Single Acting, Fixed Mount. Use Floating Disc	Single Piston. Spring Applied 1500 PSI Release	5/8	Hydraulic Oil