• Strong Structure.
• Quiet Operation (<70 dB).
• Very high braking torque for a D.C. Brake of this size.
• Very Compact compared to other D.C. Brakes. Thus Space and cost saving.
• Excellent Heat Dissipation as the fan itself acts as a Brake disc thus minimising frictional wear. Couples well with most standard motors without the need of special attachments.
• Functional in any position and especially on single phase motors as moving parts do not vibrate. Simple assembly and installation.

OPERATION :

The Brake is designed to ensure safety due to the braking torque being always applied by means of pressure spring when no voltage is applied to the Brake and it is thus normally in on condition. Upon energisation of the electromagnet by applying a D.C. voltage the Armature plate is pulled towards the electromagnet thus loading the pressure spring and allowing the fan which is axially movable on the keyway to turn freely. When the current is stopped the pressure springs push the armature plate towards the fan which is stationary thus braking the motor shaft.

SELECTION OF SUITABLE MODEL :

The Brakes are rated by torque and selection of the suitable model can be made by

calculating the required torque rating of the Brake and then matching it with the static torque rating. Although the calculation of torque is based on various factors an approximate evaluation can be made using the following formula.

Torque (NM) = [ 9550 x (K.W. / R.P.M.) ] x Safety factor (sf)

where K.W. = Kilowatts of Motor, R.P.M. = Speed at Brake location.

(sf) = Safety factor depending on type of prime mover and load.

For Electric Motor - 2 to 3

Diesel Engine - 4 to 5

Compressor - 5 to 6

However we recommend that you may please kindly contact us for literature on detailed calculation for selection of Brake.

While ordering please specify.