SUNRISE - Magnetic clutch manufacturers for over 20 years in web guide control system industry.

What Is a Hysteresis Brake?

What You Need to Know About Hysteresis Brakes

2025-12-12

Hysteresis brakes generate torque magnetically across an air gap, eliminating the need for friction plates or magnetic particles. This friction-free design ensures an ultra-long service life—even under high-speed conditions—making them ideal for slip-operation applications.

Bearing type with shaft

1. Brake magnet with solenoid

2. Armature with hysteresis ring

sunrise Group Hysteresis brake core Advantages

Exemplary operation

The Hysteresis Technology can be used and applied wherever products such as paper, wire etc. are processed by winding. Loads can be simulated with Sunrise Group on test benches or in ergometers.

Non-contact torque transmission

The non-contact torque transmission via the airgap of the mechanical componentes brake or clutches is continuously variable. Then constant and free of any wear. With normal operating conditions, no maintenance is required.

Continuously adjustable torque

The hysteresis brake torque or the transferable torque depends only on the current. It is largely speed-independent and from zero to maximum speed constantly available.

Application as holding brake

Hysteresis brakes can also be used as holding brakes without (differential) speed. An initial twisting/ displacement of the rotor relative to the brake solenoid of around 5-10° is required for this. This also applies to the reversal of the rotational direction.

Hysteresis brake Application

Ideal for printing machines, packaging machines, paper machines, film machines leather machines, textile machines, twisting machines,waving machines, etc..

Weaving industry

Hysteresis brake in waving industry