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Pneumatic Spring Applied Brakes


The New PFS400EP Extended Pad Series

The New PFS400EP Extended Pad Series

Industrial Machinery and Wind Energy Friendly.

Pneumatic (PFS)

W.C. Branham Inc. has a wide breadth of pneumatic spring applied brakes. They include the PFS47, PFS200, PFS200UL, and PFS400 series' as well as the recently introduced PFS520 and PFS522 series'.

The PFS400 has 2 times the brake holding torque than that of the PFS200 series and 4 times than that of the PFS47. The PFS520 has 3.3 times and the PFS522 has 6.6 times the brake holding torque of the PFS400.

The PFS200SUL allows for use with an unlimited brake disc diameter range. Same torque specifications as PFS200. Available as fix mounted version too.

How do they work?

Active minimum air pressure of 85 psi releases the brake piston (pulls the brake piston away) from the brake disc rotor and stores that energy in a Belleville disc spring stack (100 psi release rated for PFS400).

Then, at loss of that air pressure the energy stored in the disc spring stack is emitted driving the brake piston and engaging the disc rotor for positive stopping.

Common Features.

  • Cast aluminum construction | Hardcoated housings | Non-asbestos friction material | Replaceable friction pads | Buna-N seals | Viton® seals optional | Float  mount | Belleville disc spring stack
  • Standard models for brake disc thicknesses of 5/32, 1/4, 3/8,1/2, 5/8, 3/4, 1.0 and 1-1/8 inches.
  • We welcome custom brake disc thicknesses.

Specifications

(click for more details)


Products Available

  Product # Name Description Additional Info Disc Thick. (in.) Tangential Force
4004-0222 PFS47AF Single Acting, Floating Mount. Use Fixed Disc Single Piston. Spring Applied 85 PSI Rel. 5/32 465 lbf, 2068 N
4004-0225 PFS47BF Single Acting, Floating Mount. Use Fixed Disc Single Piston. Spring Applied 85 PSI Rel. 1/4 465 lbf, 2068 N
4004-0226 PFS47LF Single Acting, Floating Mount. Use Fixed Disc Single Piston. Spring Applied 85 PSI Rel. 3/8 465 lbf, 2068 N
4004-0227 PFS47EF Single Acting, Floating Mount. Use Fixed Disc Single Piston. Spring Applied 85 PSI Rel. 1/2 465 lbf, 2068 N
4004-0231 PFS200AF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 5/32 929 lbf, 4132 N
4004-0232 PFS200BF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1/4 929 lbf, 4132 N
4004-0233 PFS200LF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 3/8 929 lbf, 4132 N
4004-0234 PFS200EF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1/2 929 lbf, 4132 N
4004-0256 PFS47TF Single Acting, Floating Mount. Use Fixed Disc Single Piston. Spring Applied 85 PSI Rel. 3/4 465 lbf, 2068 N
4004-0265 PFS200TF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 3/4 929 lbf, 4132 N
4004-0771 PFS400AF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 5/32 1859 lbf, 8269 N
4004-0772 PFS400BF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 1/4 1859 lbf, 8269 N
4004-0773 PFS400LF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 3/8 1859 lbf, 8269 N
4004-0774 PFS400EF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 1/2 1859 lbf, 8269 N
4004-0775 PFS400HF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 5/8 1859 lbf, 8269 N
4004-0776 PFS400TF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 3/4 1859 lbf, 8269 N
4004-0777 PFS400OF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 1.0 1859 lbf, 8269 N
4004-0778 PFS400QF Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 1 1/8 1859 lbf, 8269 N
4005-0030 PFS200SAUL Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 5/32 929 lbf, 4132 N
4005-0031 PFS200SBUL Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1/4 929 lbf, 4132 N
4005-0032 PFS200SLUL Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 3/8 929 lbf, 4132 N
4005-0033 PFS200SEUL Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1/2 929 lbf, 4132 N
4005-0034 PFS200SJUL Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 5/8 929 lbf, 4132 N
4005-0035 PFS200STUL Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 3/4 929 lbf, 4132 N
4005-0036 PFS200SOUL Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1.0 929 lbf, 4132 N
4005-0037 PFS200SQUL Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1-1/8 929 lbf, 4132 N
4005-0038 PFS200DAUL Double Acting, Fixed Mount. Use Fixed or Floating Disc Quad Pistons. Spring Applied 85 PSI Release Pressure 5/32 929 lbf, 4132 N
4005-0039 PFS200DBUL Double Acting, Fixed Mount. Use Fixed or Floating Disc Quad Pistons. Spring Applied 85 PSI Release Pressure 1/4 929 lbf, 4132 N
4005-0040 PFS200DLUL Double Acting, Fixed Mount. Use Fixed or Floating Disc Quad Pistons. Spring Applied 85 PSI Release Pressure 3/8 929 lbf, 4132 N
4005-0041 PFS200DEUL Double Acting, Fixed Mount. Use Fixed or Floating Disc Quad Pistons. Spring Applied 85 PSI Release Pressure 1/2 929 lbf, 4132 N
4005-0042 PFS200DJUL Double Acting, Fixed Mount. Use Fixed or Floating Disc Quad Pistons. Spring Applied 85 PSI Release Pressure 5/8 929 lbf, 4132 N
4005-0043 PFS200DTUL Double Acting, Fixed Mount. Use Fixed or Floating Disc Quad Pistons. Spring Applied 85 PSI Release Pressure 3/4 929 lbf, 4132 N
4005-0044 PFS200DOUL Double Acting, Fixed Mount. Use Fixed or Floating Disc Quad Pistons. Spring Applied 85 PSI Release Pressure 1.0 929 lbf, 4132 N
4005-0045 PFS200DQUL Double Acting, Fixed Mount. Use Fixed or Floating Disc Quad Pistons. Spring Applied 85 PSI Release Pressure 1-1/8 929 lbf, 4132 N
NEW! 4005-0125 PFS400IF-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 3/16 1859 lbf, 8269 N
NEW! 4005-0126 PFS400BF-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 1/4 1859 lbf, 8269 N
NEW! 4005-0127 PFS400LF-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 3/8 1859 lbf, 8269 N
NEW! 4005-0128 PFS400EF-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 1/2 1859 lbf, 8269 N
NEW! 4005-0129 PFS400JF-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 5/8 1859 lbf, 8269 N
NEW! 4005-0130 PFS400TF-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 3/4 1859 lbf, 8269 N
NEW! 4005-0131 PFS400OF-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 1.0 1859 lbf, 8269 N
NEW! 4005-0132 PFS400QF-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 100 PSI Rel. 1-1/8 1859 lbf, 8269 N
NEW! 4005-0139 PFS200AFUL-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 5/32 929 lbf, 4132 N
NEW! 4005-0140 PFS200IFUL-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 3/16 929 lbf, 4132 N
NEW! 4005-0141 PFS200BULF-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1/4 929 lbf, 4132 N
NEW! 4005-0142 PFS200LFUL-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 3/8 929 lbf, 4132 N
NEW! 4005-0143 PFS200EFUL-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1/2 929 lbf, 4132 N
NEW! 4005-0144 PFS200JFUL-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 5/8 929 lbf, 4132 N
NEW! 4005-0145 PFS200TFUL-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 3/4 929 lbf, 4132 N
NEW! 4005-0146 PFS200OFUL-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1.0 929 lbf, 4132 N
NEW! 4005-0147 PFS200QFUL-EP Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1-1/8 929 lbf, 4132 N
NEW! 4252-0080 PFS522SE Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1/2 12236 lbf, 54428 N
NEW! 4252-0081 PFS522SJ Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 5/8 12236 lbf, 54428 N
NEW! 4252-0082 PFS522ST Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 3/4 12236 lbf, 54428 N
NEW! 4252-0083 PFS522SO Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1.0 12236 lbf, 54428 N
NEW! 4252-0084 PFS522SQ Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 85 PSI Rel. 1-1/8 12236 lbf, 54428 N
NEW! 4252-0093 PFS520SE Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 75 PSI Rel. 1/2 6419 lbf, 28565 N
NEW! 4252-0094 PFS520SJ Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 75 PSI Rel. 5/8 6419 lbf, 28565 N
NEW! 4252-0095 PFS520ST Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 75 PSI Rel. 3/4 6419 lbf, 28565 N
NEW! 4252-0096 PFS520SO Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 75 PSI Rel. 1.0 6419 lbf, 28565 N
NEW! 4252-0097 PFS520SQ Single Acting, Floating Mount. Use Fixed Disc Dual Pistons. Spring Applied 75 PSI Rel. 1-1/8 6419 lbf, 28565 N
 
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