Particle, hysteresis electromagnetic brakes

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Stephenson Gobin

Permanent magnet electromagnetic brake

SG Transmission permanent magnet (fail-safe) brakes incorporate the use of high specification Rare-Earth materials to ensure a positive...

Permanent magnet electromagnetic brake

SG Transmission permanent magnet (fail-safe) brakes incorporate the use of high specification Rare-Earth materials to ensure a positive stopping action in all types of rotating machinery.

These power-off devices are designed so that when the power is removed from the unit, for whatever reason, the magnetic energy of a permanent magnetic disc is channeled and controlled to attract the steel armature plate across an air-gap, thus clamping it in its place against the stationary field housing to give the required braking effect.

Permanent magnet electromagnetic clutch and brake - 51-PC, 51-PB series

RELIABLE & STABLE TORQUE
The 51-PC/51-PB series clutches and brakes utilise premium magnetic particles and the optimum magnetic circuit. The relationship...

Permanent magnet electromagnetic clutch and brake - 51-PC, 51-PB series

RELIABLE & STABLE TORQUE
The 51-PC/51-PB series clutches and brakes utilise premium magnetic particles and the optimum magnetic circuit. The relationship between torque and exciting current is directly proportional, offering constant torque, independent of slip speed.

HIGH CYCLE CAPABILITY & LONG LIFE
The use of high wear particles assures long operational life in high cycle applications.

DESIGNED FOR CONTINUOUS SLIP
The 51-PC/51-PB series clutches and brakes have been designed to maintain high performance in continuous slip applications through maximum and continuous heat dissipation.

Electromagnetic particle clutch and brake - OP series

FAST RESPONSE
The OP series has been designed to provide fast response. Response rates can be further quickened through overexcitation circuits.

STABLE...

Electromagnetic particle clutch and brake - OP series

FAST RESPONSE
The OP series has been designed to provide fast response. Response rates can be further quickened through overexcitation circuits.

STABLE TORQUE
The OP series produces consistent and repeatable torque. Torque is independent of speed and proportional to voltage applied to the field.

LONG LIFE
The OP series sturdy construction and precise formulation of the magnetic particles combine to provide extended life.

SLIP CAPACITY
OP series clutches and brakes are designed to deliver high performance under constant slip conditions.

Electromagnetic particle clutch and brake - 51-PC, 51-PB series

RELIABLE AND STABLE TORQUE
The 51-PC/51-PB series clutches amd brakes utilise premium magnetic particles and the optimum magnetic circuit. The relationship...

Electromagnetic particle clutch and brake - 51-PC, 51-PB series

RELIABLE AND STABLE TORQUE
The 51-PC/51-PB series clutches amd brakes utilise premium magnetic particles and the optimum magnetic circuit. The relationship between torque and exciting current is directly proportional, offering constant torque, independent of slip speed.

HIGH CYCLE CAPABILITY
The use of high wear resistant particles assures long operational life in high cycle applications.

DESIGNED FOR CONTINUOUS SLIP
The 51-PC/51-PB series clutches and brakes have been designed to maintain high performance in continuous slip applications through maximum and continuous heat dissipation.
CLARK ELECTRIC CLUTCH

Electromagnetic particle clutch and brake - 6 - 200 Nm

Powder Clutches & Brakes
Within our range of Powder Clutches & Brakes, we offer six models of Clutches...

Electromagnetic particle clutch and brake - 6 - 200 Nm

Powder Clutches & Brakes
Within our range of Powder Clutches & Brakes, we offer six models of Clutches and five models of Brakes, providing a torque range of 6 to 200 Nm.
The Clutches are of Input/Output design whereas the Brakes are Input shaft type only. For more information please contact us, our drawings numbered 5935 and 5930 provide all dimension details of our Powder Clutches & Brakes respectively.
Ema-Elfa

Electromagnetic particle clutch and brake - 3 - 170 Nm, 24 VDC, 2 A

Technical description



The electromagnetic powder clutch and brake combine the flexibility of hydraulic clutch with set stability of friction clutch (brake). Torque is transferred by special,alloy, dry ferromagnetic powder whose apparent viscosity can be changed bymodulating the current of electromagnetic coil. The clutch (brake) can withstand...

Electromagnetic particle clutch and brake - 3 - 170 Nm, 24 VDC, 2 A

Technical description



The electromagnetic powder clutch and brake combine the flexibility of hydraulic clutch with set stability of friction clutch (brake). Torque is transferred by special,alloy, dry ferromagnetic powder whose apparent viscosity can be changed bymodulating the current of electromagnetic coil. The clutch (brake) can withstand continuous slip (within the framework of its empirically set, rated thermal values) atprecisely specified and stable value of torque which is determined by level ofelectromagnet excitation. Slip between input and output member of the clutchis not indispensable for transferring the torque and if load torque does not exceed the value of rotating torque for which the clutch (brake) has been excited, synchronous action will occur.

Conversely, if load torque exceeds level of excitation torque, slip will occur inabsolutely smooth manner with value of torque specified in advance.

For all practical purposes, coefficients of static and dynamic friction are practicallyidentical, output torque is independent of speed or slip speed.

Powder parameters are insensitive to temperature growth at working surfaces,and the clutch will all the time have the characteristic for which the torque transferredis directly proportional to current. It should be noted that utilization of dry powder instead of wet powder ensures better stability and accuracy of torque regulation.
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