MPB / MPC Series

Magnetic powder brakes

  • Zero dust emissions for purity & safety
  • Precise, linear, and stable torque
  • Minimal residual torque of less than 1%
  • Enhanced heat dissipation via cooling rings or fans
  • Ideal for printing, cleanrooms & the food industry
  • 8 sizes: up to 500 Nm torque & 1300 kW heat dissipation
Magnetic powder brakes

Eleflex magnetic powder brakes: the advanced solution for high-precision web tension control in your winders and unwinders. These brakes are specifically designed to increase the efficiency of your production processes, minimize material waste, and ensure consistently high product quality. Rely on technology that perfectly combines performance and cleanliness.

Superior technology for maximum precision

At the heart of the Eleflex series is the exceptionally precise and linear torque control. Through the intelligent interaction of coil, stator, rotor, and magnetic powder, the brake adapts instantly to process changes. A special design reduces residual magnetism and mechanical friction to an absolute minimum. The result is an impressively low residual torque of less than 1% of the nominal value, guaranteeing extremely stable and repeatable web tension. With eight available sizes, the brake can also be perfectly matched to your individual torque and heat dissipation requirements. For particularly demanding applications, heat dissipation can be further increased by special cooling rings or an integrated fan, maximizing service life and reliability.

  • b351
  • b351r
  • b651rv
  • b1201
  • c351r
  • b351v

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Clean and efficient. Ideal for demanding industries

A decisive advantage of the Eleflex magnetic powder brake is its completely dust-free operation. This property makes it the first choice for hygiene-sensitive and clean production environments. It is therefore ideal for use in:

  • Printing presses (flexographic and gravure)
  • The food industry
  • Cleanrooms
  • And all other applications where maximum cleanliness is required.

The compact design and low-maintenance operation ensure easy integration and reduce expensive downtime. Increase your productivity and the quality of your end products with Eleflex technology and service from IBD Wickeltechnik.

Technical drawing magnetic powder brake

Max. torque 12 Nm
Residual torque 0.06 Nm
Max. current consumption 1 A
Resistance at 20°C 24 Ohm
Voltage 24 V (PWM)
Heat dissipation 80 W
Heat dissipation with radiator 160 W
Heat dissipation with fan 350 W
Clutch heat dissipation at 500 rpm 140 W
with radiator at 500 rpm 400 W
Clutch heat dissipation at 1000 rpm 180 W
with radiator at 1000 rpm 560 W
rpm min.-max. 40-2000
Max. operating temperature 70°C
Weight kg 2.5 (B.121)/4.5 (B.121.R)/3.7 (B.121.V)/3 (C.121)/5 (C.121.R)
Technical drawing magnetic powder brake

Max. torque 35 Nm
Residual torque 0.2 Nm
Max. current consumption 1 A
Resistance at 20°C 24 Ohm
Voltage 24 V (PWM)
Heat dissipation 130 W
Heat dissipation with radiator 230 W
Heat dissipation with fan 500 W
Clutch heat dissipation at 500 rpm 208 W
with radiator at 500 rpm 650 W
Clutch heat dissipation at 1000 rpm 260 W
with radiator at 1000 rpm 810 W
rpm min.-max. 40-2000
Max. operating temperature 70°C
Weight kg 4 (B.351)/7 (B.351.R)/5.2 (B.351.V)/4.6 (C.351)/7.6 (C.351.R)
Technical drawing magnetic powder brake

Max. torque 65 Nm
Residual torque 0.4 Nm
Max. current consumption 1 A
Resistance at 20°C 24 Ohm
Voltage 24 V (PWM)
Heat dissipation 170 W
Heat dissipation with radiator 400 W
Heat dissipation with fan 800 W
Clutch heat dissipation at 500 rpm 280 W
with radiator at 500 rpm 950 W
Clutch heat dissipation at 1000 rpm 350 W
with radiator at 1000 rpm 1200 W
rpm min.-max. 40-2000
Max. operating temperature 70°C
Weight kg 6.5 (B.651) / 9 (B.651.R) / 8.8 (B.651.V) 6.9 (C.651) / 9.4 (C.651.R)
Technical drawing magnetic powder brake

Max. torque 120 Nm
Residual torque 0.5 Nm
Max. current consumption 1 A
Resistance at 20°C 24 Ohm
Voltage 24 V (PWM)
Heat dissipation 330 W
Heat dissipation with radiator 650 W
Heat dissipation with fan 1500 W
Clutch heat dissipation at 500 rpm 650 W
with radiator at 500 rpm 1440 W
Clutch heat dissipation at 1000 rpm 820 W
with radiator at 1000 rpm 1800 W
rpm min.-max. 40-2000
Max. operating temperature 70°C
Weight kg 16.5 (B.1201) / 19 (B.1201.R) / 19 (B.1201.V) 17 (C.1201) / 19.5 (C.1201.R)
Technical drawing magnetic powder brake

Max. torque 170 Nm
Residual torque 0.5 Nm
Max. current consumption 1 A
Resistance at 20°C 24 Ohm
Voltage 24 V (PWM)
Heat dissipation 450 W
Heat dissipation with radiator 850 W
Heat dissipation with fan 1600 W
Clutch heat dissipation at 500 rpm 760 W
with radiator at 500 rpm 1550 W
Clutch heat dissipation at 1000 rpm 950 W
with radiator at 1000 rpm 2250 W
rpm min.-max. 40-2000
Max. operating temperature 70°C
Weight kg 22.5 (B.1701) / 25.5 (B.1701.R) / 25 (B.1701.V) 22.9 (C.1701) / 26 (C.1701.R)
Technical drawing magnetic powder brake

Max. torque 250 Nm
Residual torque 3 Nm
Max. current consumption 0.94 A
Resistance 25.5 Ohm
Voltage 24 V (PWM)
Heat dissipation 500 W
Heat dissipation with radiator 900 W
Heat dissipation with fan 2000 W
Clutch heat dissipation at 500 rpm 1440 W
with radiator at 500 rpm 1650 W
Clutch heat dissipation at 1000 rpm 1800 W
with radiator at 1000 rpm 2400 W
rpm min.-max. 40-1800
Max. operating temperature 70°C
Weight kg 32 (B.2500) / 38 (B.2500.R) / 38 (B.2500.V) 33 (C.2500) / 40 (C.2500.R)
Technical drawing magnetic powder brake

Max. torque 500 Nm
Residual torque 6 Nm
Max. current consumption 0.94 A
Resistance 25.5 Ohm
Voltage 24 V (PWM)
Heat dissipation 1300 W
Heat dissipation with radiator 2500 W
Heat dissipation with fan 4000 W
Clutch heat dissipation at 500 rpm 2800 W
with radiator at 500 rpm 4000 W
Clutch heat dissipation at 1000 rpm 3500 W
with radiator at 1000 rpm 5000 W
rpm min.-max. 40-1500
Max. operating temperature 70°C
Weight kg 59 (B.5000) / 62 (B.5000.R) / 62 (B.5000.V) 62 (C.5000) / 65 (C.5000.R)

ELEFLEX – mini models

B.20 B.53 B.55
Nominal torque 2 Nm 5 Nm 5 Nm
Residual torque 0.07 Nm 0.03 Nm 0.04 Nm
Max. current 1 A 1 A 1 A
Resistance at 20°C 24 Ohm 24 Ohm 24 Ohm
Voltage (PWM) 24 V 24 V 24 V
Power loss 24 W 70 W 75 W
Speed min./max. 40-2000 40-2000 40-2000
Weight 0.8 kg 1.55 kg 1.3 kg