Our unique manufacturing process minimizes problems

Wide Operating Torque Range Magnetic Particle Units

Precision Torque’s magnetic particle clutches and brakes operate with a rotating disc linked to a fixed member via magnetic powder. The DC coil magnetizes the powder, producing torque shear forces. Our magnetic particle clutches and brakes are unique because of the wide operating torque range available. We offer units with a torque rating of .4 in-oz up to 240 lb-in.

Torque to current is almost linear and can be controlled very accurately, even at extremely slow speeds. The unique features of the magnetic particle clutches and brakes make them ideal for tension control, load simulation, cycling/indexing, and soft starts and stops. We offer zinc plating for superior corrosion resistance. Precision Torque Control’s unique manufacturing process minimizes internal run-out and concentricity problems. This allows slower speed operation and vertical mounting. Custom designs readily available for special requirements.


Precision Tork is a direct interchange with Sofstep (Magpowr) and Placid

see cross-reference sheet below.
MagPowr Model NumberPlacid Model NumberPrecision Tork Model Number
PSC2-24VC2-24V MPC2-1-24
PSC2-90VC2-90V MPC2-1-90
PSC15-24VC15-24V MPC15-1-24
PSC15-90VC15-90V MPC15-1-90
PSC70-24VC70-24V MPC70-1-24
PSC70-90VC70-90V MPC70-1-90
PSC120-24VC120-24V MPC120-1-24
PSC120-90VC120-90V MPC120-1-90
PSB2-24VB2-24V MPB2-1-24
PSB2-90VB2-90V MPB2-1-90
PSB15-24VB15-24V MPB15-3-24
PSB15-90VB15-90V MPB15-3-90
PSB70-24VB60-H-24V MPB70-1-24
PSB70-90VB60-H-90V MPB70-1-90
PSB120-24VB150-H-90V MPB120-1-24
PSB120-90VB150-H-90V MPB120-1-90
PSB240-24VB220-24V MPB240-2-24
PSB240-90VB220-90V MPB240-2-90