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TYPICAL
APPLICATIONS :
Textile Machines,
Printing Machines, Machine Tools, Pick & Place
Robots, Plastic Machinery, Conveyors, Laundry
Machines, Brake Motors, Paper Machines, Bottle
Washing Machines, Wire Drawing Machines, Coil
Winding Machines, Packaging Machines... etc. |
WORKING
These type of brakes are normally-off type and
operates on power. When power is given to the
stator (coil), the armature is attracted towards
the asbestos free friction liner of the brake
stator which clamps the rotating component stop
at once.
On switching off the electric power, the unique
prestressed spring pulls the armature plate back
into its original position and brake positively
released with no residual torque. |
SWITCHING
Normally off type clutches operate on D.C.
voltage, hence A.C. to D.C. conversion is done
by means of a suitable rectifier.
Switching of the brake can be on either side.
However, once application demands, higher
switching frequency / faster engagement and
disengagement time, switching must be carried
out on D.C. side. To restrict the high inductive
voltage / back EMF a suitable supressor and
capacitor network is provided across the
contactor coil. |