The MagnaShear motor brake from Force Control Industries employ oil shear technology, which transmits torque between lubricated surfaces – thereby eliminating the heat build-up of dry brakes which is a major source of conveyor fires. A patented fluid recirculation system dissipates the heat and keeps these proven brakes running cool. Totally enclosed MagnaShear brakes are impervious to moisture, dirt, and dust – further enhancing their safety. In addition to being safer, oil shear technology eliminates wear on friction surfaces, significantly increasing service life and virtually eliminating adjustment in demanding mining and bulk materials handling applications. In addition to conveyors, MagnaShear motor brakes are ideal for applications where the motor is reversed each cycle such as loader/unloader conveyors, as well as cranes, winches, and hoists, rail car spotters and dumpers, rotary samplers, trippers, and pallet return conveyors.
The oil shear technology also provides a smooth “cushioned” stop which reduces shock to the drive system, further extending service life of downstream components. Oil shear technology includes a layer of automatic transmission fluid between the brake disc and the drive plate. As the fluid is compressed, the fluid molecules shear – thus imparting torque to the other side. This torque transmission causes the stationary surface to turn, bringing it up to the same relative speed as the moving surface. Since most of the work is done by the fluid particles in shear, wear is virtually eliminated. Elimination of wear also eliminates the need for adjustments which are common for dry braking systems.
In addition to transmitting torque, a patented fluid recirculation system helps to dissipate heat which is the major problem with traditional dry brakes.
These proven motor brakes are available to accommodate a wide range of applications. Spring set torque ratings from 3 to 1250 foot-pounds are available. MagnaShear motor brakes can be sized to the correct torque independent of the motor frame size or horsepower.
MagnaShear motor brakes feature “quick mount” features for quick and easy mounting to drive motors in NEMA frame sizes 56 to 449. They are shipped ready to install, with no assembly or adjustments required. They are also available pre-mounted on a motor for severe duty applications. MagnaShear motor brakes can be furnished to fit a NEMA or IEC frame motor, as a complete motor and brake assembly, or to mount on a machine frame or other special mounting configuration.
