Twiflex industrial disc brakes and caliper systems

Twiflex industrial braking equipment: VCS and VKSD spring-applied calipers, MX link calipers, GMR and MR units, Layrub couplings, and LCS power units.

Twiflex VCS Mk3 spring-applied hydraulically released brake calipers

Twiflex VCS Mk3 disc brake calipers comprise two symmetrical spring modules engineered for discs at least 20 mm thick and 500 mm in diameter. Internal spring packs generate clamping forces from 17 kN to 62 kN with hydraulic release for heavy mine winders and cranes.

Clamping force envelope spanning 17 kN to 62 kN with dependable hydraulic release
Operates with industrial brake discs starting from 500 mm diameter and 20 mm thick
Two-module split layout allowing flexible caliper positioning around disc perimeter
Integrated proximity sensors monitoring pad wear state and hydraulic circuit status

Twiflex VKSD series heavy-duty modular spring-applied brake calipers

Twiflex VKSD disc brake calipers are built for demanding drives utilizing brake discs from 1000 mm diameter upward. Modular halves bolt to a central mounting plate, providing adjustable clamping forces from 28 kN to 119 kN for heavy conveyor pulleys and winches.

Rated clamping capacity spanning 28 kN to 119 kN tailored for intense dynamic loads
Engineered for industrial brake discs starting from 1000 mm minimum outer diameter
Central mounting spacer plate 12 mm wider than disc ensuring precise pad tracking
Fatigue-resistant spring packs engineered for demanding multi-shift conveyor duty

Twiflex MX series brake calipers with patented link mechanism

Twiflex MX series calipers incorporate a patented link mechanism that eliminates uneven wear and maintains parallel pad contact against the disc faces. Model options MX13, MX25, MX30, and MX40 accommodate disc thicknesses from 12.7 mm to 40 mm with varied actuation.

Link mechanism maintaining parallel pad alignment to eliminate tapered lining wear
Model configurations MX13, MX25, MX30, and MX40 covering 12.7 mm to 40 mm discs
Modular thruster options supporting pneumatic, hydraulic, and spring actuation
Rapid friction pad replacement completed without disconnecting main caliper mount

Twiflex GMR and GMR40 heavy-duty industrial disc brake calipers

Twiflex GMR and GMR40 industrial calipers deliver dependable braking torque across steel mills, wind power turbines, and heavy port cranes. Designed for disc thicknesses of 25.4 mm and 40 mm with diameters starting from 610 mm, each unit delivers clamping forces up to 36 kN.

Clamping capacity reaching up to 36 kN per caliper under operating pressure 120 bar
Variants accommodating standard 25.4 mm (GMR) and heavy 40 mm (GMR40) discs
Engineered for heavy-duty industrial shafts with minimum disc diameter 610 mm
Robust ductile iron body structure withstanding dynamic mechanical vibrations

Twiflex MR series direct-acting pneumatic and hydraulic calipers

Twiflex MR series direct-acting calipers deliver responsive stopping and web tensioning control for medium machinery. These calipers operate with discs 12.7 mm and 25.4 mm thick starting from 250 mm diameter (460 mm for the MR2 model), offering fine proportional control.

Accommodates disc thicknesses 12.7 mm and 25.4 mm with minimum 250 mm disc diameter
Enhanced MR2 configuration engineered for larger industrial discs from 460 mm
Equalising link attachment maintaining alignment when mounted beyond 10 degrees
Proportional pneumatic and hydraulic thrusters delivering exact holding torque

Twiflex Layrub flexible couplings and LCS hydraulic power units

Twiflex manufactures Layrub flexible couplings using twelve modular elastomer blocks to transmit torque ratings up to 64 kNm while absorbing shaft misalignment. To power and regulate brake calipers, engineers supply standalone LCS electro-hydraulic power units and TLB systems.

Layrub resilient couplings handling dynamic torque ratings up to 64 kNm safely
Damping angular, axial, and radial shaft misalignments without metallic wear
Standalone LCS electro-hydraulic power units delivering regulated pressure
Integrated turning, locking, and braking TLB modules for heavy marine shafts

Twiflex engineering heritage and disc brake manufacturing background

Founded in 1946 in Bedford, United Kingdom, Twiflex Limited built an international reputation for industrial disc brake innovation. Now operating within Regal Rexnord, the enterprise combines in-house design engineering, alloy machining, assembly, and rigorous testing.

A dedicated engineering staff of 75 specialists, including 25 qualified engineers, conducts finite element and thermal dissipation calculations.

Every brake assembly undergoes comprehensive quality inspections, including spring pack deflections and hydraulic pressure testing under severe loading conditions.

Design characteristics of Twiflex VCS Mk3 spring-applied calipers

Twiflex VCS Mk3 disc brake calipers are spring-applied, hydraulically released units delivering safety holding across heavy machinery.

Comprising two independent spring modules mounted on either side of a central support plate, the caliper operates with discs starting from 20 mm thick and 500 mm in diameter.

Internal disc springs generate clamping forces from 17 kN to 62 kN. Pressurised hydraulic fluid up to 160 bar overcomes spring force to retract friction pads with regulated clearance.

Symmetrical mounting facilitates positioning around disc perimeters, while limit switches signal pad wear and opening.

Modular architecture of VKSD heavy-duty industrial brake calipers

For demanding applications such as mine hoists, overland conveyors, and utility wind turbines, Twiflex supplies VKSD modular calipers. Built for massive discs starting from 1000 mm diameter, modular halves mount to a central plate 12 mm wider than the disc to maintain alignment under deflection.

Clamping forces range from 28 kN to 119 kN per caliper under high dynamic braking cycles with intense thermal dissipation.

Horizontal installation at 3 or 9 o'clock minimizes gravitational deflection on guide bushes, while optional mechanical lock-out assemblies hold spring packs compressed during servicing.

Kinematic advantages of MX calipers with patented link mechanism

A distinguished innovation across the Twiflex portfolio is the MX caliper family, incorporating a patented link mechanism that prevents tapered lining wear.

Conventional calipers can experience uneven pad contact under deflection; the MX link mechanism guides pads parallel to disc faces throughout their stroke.

The range includes MX13, MX25, MX30, and MX40 configurations tailored for discs 12.7 mm to 40 mm thick with minimum diameters from 300 mm. Operators can select pneumatic, hydraulic, or fail-safe spring actuators.

The split housing design allows technicians to replace friction pads without detaching mounting brackets.

Performance parameters of GMR series and MR direct-acting calipers

Twiflex GMR and GMR40 heavy-duty calipers handle demanding duties across metal rolling mills, overhead cranes, and marine winches. Optimized for 25.4 mm and 40 mm steel discs with diameters from 610 mm, clamping force reaches 36 kN at 120 bar.

Ductile iron housings withstand intense shock vibrations and harsh temperature swings.

For web tensioning, coil processing, and lighter machinery, compact MR direct-acting calipers deliver proportional pneumatic or hydraulic clamping on discs 12.7 mm and 25.4 mm thick from 250 mm diameter.

An equalising link prevents uneven drag whenever calipers mount beyond 10 degrees from horizontal.

Integration of Layrub resilient couplings and LCS hydraulic power units

Twiflex manufactures Layrub flexible couplings utilizing twelve modular elastomer blocks to transmit torque ratings up to 64 kNm while absorbing shaft misalignment.

Layrub couplings dampen torsional vibrations from electric motors and diesel engines without metallic wear between interacting components.

Hydraulic brake operation is supported by LCS electro-hydraulic power units. Packaged with reliable pumps, fine filters, pressure transducers, and proportional valves, LCS units deliver smooth release without pressure shocks and two-stage pressure dumping during emergency power failure.

Twiflex and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Twiflex and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.