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How motor brakes can help alleviate worker shortage issues

By Mike Santora | September 21, 2022

MagnaShear motor brake product image

The MagnaShear motor brake employs oil shear technology, providing longer service life in applications like the frequent start/stop cycles seen on cranes, hoists, winches, conveyors, palletizers, and other equipment.

Force Control Industries’ MagnaShear maintenance-free, no-adjustment motor brakes eliminate motor brake downtime. And because the best kind of maintenance is no maintenance, they can also help to alleviate problems associated with worker shortages. With no adjustment or maintenance required, save for an annual oil change, these dependable motor brakes allow maintenance personnel to be tasked with other projects, thus accomplishing more work with fewer employees.

The MagnaShear motor brake employs oil shear technology, providing longer service life in applications like the frequent start/stop cycles seen on cranes, hoists, winches, conveyors, palletizers, and other equipment. Proven oil shear technology transmits torque between lubricated surfaces — eliminating wear on friction surfaces. A patented fluid recirculation system dissipates heat — eliminating heat build-up, which is the most common problem in dry braking systems. Elimination of the wear significantly increases service life and eliminates adjustment, which also elongates maintenance intervals. They are suitable for applications where the motor is reversed each cycle, such as rail car spotters and dumpers, ship and rail car loading conveyors, 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.

The totally enclosed MagnaShear brakes are impervious to moisture, dirt, and the dust common in concrete block plants, asphalt shingle manufacturing, coal, bulk materials handling, forest products manufacturing, and more.

Unlike dry brakes, 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 — imparting torque to the other side. This torque transmission causes the rotating discs to decelerate against the stationary plates, bringing them down to stop. As 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 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. Along with heat removal and torque transmission, the fluid serves to continually lubricate all components of the oil shear brake, elongating their service life.

Motor with MagnaShear motor brakes

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.

Suitable for a range of motor sizes
These proven motor brakes are available to accommodate myriad applications. Spring set torque ratings from 3 to 1250 foot-pounds are available. MagnaShear motor brakes are available in multiple torques for the same motor frame.

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.

These proven motor brakes are fully enclosed from outside contaminants, with seal integrity for harsh and washdown environments. A modular design /assembly allows for ease of servicing and maintenance.

Force Control Industries
www.forcecontrol.com

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Filed Under: Brakes • clutches
Tagged With: forcecontrol
 

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