Intorq Spring Applied Brakes


BFK458 Series - Spring Applied Brakes

The versatile modular system INTORQ BFK458
Our modular system forms the basis of a product programme that can be adapted to suit practically any application. The BFK458 spring-operated brake is a standard product that can be used anywhere, but its modular design means it can also be used for special applications. Its versatility is its strength.

  • Braking torque: 2-600 Nm
  • 9 sizes in CSA-CUS design
  • DC voltages: 24, 103, 180, 205 V
  • Thermal class F (155 °C)
  • Preset air gap
  • Braking torque can be reduced (module E)
  • Long rotor/hub guide with low rate of wear
  • Manual release facilities for all sizes
  • Air gap and wear monitoring (optional)

  • BFK458-06E Spring Applied Brake
  • BFK458-08E Spring Applied Brake
  • BFK458-10E Spring Applied Brake
  • BFK458-12E Spring Applied Brake
  • BFK458-14E Spring Applied Brake
  • BFK458-16E Spring Applied Brake
  • BFK458-18E Spring Applied Brake
  • BFK458-20E Spring Applied Brake
  • BFK458-25E Spring Applied Brake
  • BFK458-06N Spring Applied Brake
  • BFK458-08N Spring Applied Brake
  • BFK458-10N Spring Applied Brake
  • BFK458-12N Spring Applied Brake
  • BFK458-14N Spring Applied Brake
  • BFK458-16N Spring Applied Brake
  • BFK458-18N Spring Applied Brake
  • BFK458-20N Spring Applied Brake
  • BFK458-25N Spring Applied Brake

Application areas: Brake motors, cranes, warehousing, wood working machines, industrial trucks, stage machinery, vehicles for the disabled and escalators

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BFK457 Series - Spring Applied Brakes

Compact and quickly installed INTORQ BFK457
In many applications, all that is required of the brake is that it fufills its basic function. For such situations the BFK457 is just the job. The fact that it can also be installed quickly using the integral fixing screws and fixed air gap makes this spring-operated brake even more attractive.

  • Braking torque: 0.12-125 Nm
  • 9 sizes
  • DC voltages: 24, 205 V
  • Thermal class F (155 °C)
  • Compact construction with rotor and flange
  • Integral fixing screws for quick and easy installation
  • Fixed air gap
  • Noise-reduced double spring-operated brake <50 dB(A)

  • BFK457-01 Spring Applied Brake
  • BFK457-02 Spring Applied Brake
  • BFK457-03 Spring Applied Brake
  • BFK457-04 Spring Applied Brake
  • BFK457-05 Spring Applied Brake
  • BFK457-06 Spring Applied Brake
  • BFK457-08 Spring Applied Brake
  • BFK457-10 Spring Applied Brake
  • BFK457-12 Spring Applied Brake
  • BFK457-14 Spring Applied Brake
  • BFK457-16 Spring Applied Brake

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BFK468 Series - Multipole Spring Applied Brake

The new performance standard INTORQ BFK468
High-performance drives are generating ever higher motor speeds and drive torques. Although performance requirements are increasing, less and less space is available for the brake. The INTORQ spring-operated brake for high-performance applications is the BFK468. The innovative multipole technology allows it to be released through a large air gap, even when forces are high.

  • Spring-operated brake with multipole system
  • Up to twice the braking torque compared to the BFK458
  • Fixed or adjustable braking torque
  • 'Cold brake' by holding current derating
  • Short operating times on AC side
  • Large working air gap means long maintenance intervals

  • BFK468-18E Spring Applied Brake
  • BFK468-20E Spring Applied Brake
  • BFK468-25E Spring Applied Brake
  • BFK468-31E Spring Applied Brake
  • BFK468-18N Spring Applied Brake
  • BFK468-20N Spring Applied Brake
  • BFK468-25N Spring Applied Brake
  • BFK468-31N Spring Applied Brake

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BFK466 Series - Caliper Style

For disc brakes up to 10,000 Nm
INTORQ BFK466 Direct drives for modern hoists demand brakes with high braking torques, short response times and low-noise operation. The multipole BFK466 satisfies all these requirements and can also be adapted to the contour of the motor.

  • Spring-operated brake in the form of a caliper
  • For multiple and redundant arrangements
  • High braking torque and large working air gap
  • Release without residual torque and quiet operation
  • Optimal contour adaptation to the design of the motor
  • High magnetic forces caused by overexcitation when releasing
  • 'Cold brake' through holding current derating
  • Air gap or wear monitoring using micro switch

  • BFK466-12 Spring Applied Brake
  • BFK466-22 Spring Applied Brake
  • BFK466-35 Spring Applied Brake
  • BFK466-80 Spring Applied Brake

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BFK461 Series - Spring Applied (Discontinued) See BFK70 Series

INTORQ BFK461, sealed design
The INTORQ range of spring-applied brakes is being expanded with the addition of the new BFK461 series of sealed designs. This brake has been specifically developed for application areas with high enclosure requirements. It is a self-contained system available in seven sizes and with braking torques of 4 - 235 Nm is ideal for use in wind power plants, cranes and textile machines.

  • Spring-applied brake, sealed design, IP65 enclosure
  • Designs with and without flange
  • Long maintenance intervals

  • BFK461-06N Spring Applied Brake
  • BFK461-08N Spring Applied Brake
  • BFK461-10N Spring Applied Brake
  • BFK461-12N Spring Applied Brake
  • BFK461-14N Spring Applied Brake
  • BFK461-16N Spring Applied Brake
  • BFK461-18N Spring Applied Brake

Application areas: Brake motors, Wind power plants, Car wash systems, Cranes Hoists, and Textile machines

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BFK470 Series - Spring Applied

With the BFK470, the INTORQ product portfolio now offers a modular series of spring-applied brakes sealed by an IP66 enclosure. Our modular solutions are unique in the market, and they have been put to successful use for decades. This new series was developed for operating conditions that require a high level of ingress protection against dust and/or dampness. The BFK470 comes in 7 sizes from 2 - 370 Nm. As a self-contained system, it is predestined for use in wind turbines and cranes. This brake can also be used in extreme ambient temperatures.

  • 7 sizes with braking torques from 2 - 370 Nm
  • Enclosure complies with IP66, also available with hand-release
  • Mountable rotary traducer (optional)
  • Can be used in temperatures up to minus 40° C (Cold Climate Version, CCV)
  • Inductive proximity sensor for function monitoring
  • Increased maximum torques and long life cycle through the refined mechanical structure
  • Corrosion protection: compatible with protection class C4 or C5

  • BFK470-06 Spring Applied Brake
  • BFK470-08 Spring Applied Brake
  • BFK470-10 Spring Applied Brake
  • BFK470-12 Spring Applied Brake
  • BFK470-14 Spring Applied Brake
  • BFK470-16 Spring Applied Brake
  • BFK470-18 Spring Applied Brake

Application areas: Brake motors, Wind Turbines, and Cranes Hoists

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BFK471 Series - Spring Applied

The new high-performance braking system has been developed for use on cranes and port facilities. A new manual release has been designed specifically for this brake meeting the high requirements of the enclosure rating. The modular structure of the brake enables flexible use with single or dual rotor.

  • High braking torque and low space requirements
  • 1500 Nm in dual rotor design, 750 Nm with single rotor
  • Enclosure corresponding to IP66, with manual release
  • High degree of corrosion protection
  • Non-contact sensor for air gap monitoring
  • Reduction of the power consumption by up to 75% through control via bridge/half-wave rectifier
  • Can replace existing brake solutions

Application areas: Crane Hoists and Port Facilities

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