Created on 11.25

6 Key Specifications You Must Know Before Buying a Hysteresis Brake

Hysteresis brakes are widely used in tension control systems, testing machines, motor test benches, and roll-to-roll converting applications. With a non-contact operating mechanism, they offer smooth torque output, long service life, and minimal maintenance.

However, choosing the wrong model may result in unstable tension, overheating, shortened service life, or equipment failure. Before purchasing, it is essential to evaluate the following six core specifications:=

① Rated Torque Range

This reflects the controllable tension range. Selection should match material requirements including starting tension and maximum working torque.

② Speed & RPM Capability

The brake must support the line speed without overheating or performance loss.

③ Thermal Capacity & Cooling Design

Since hysteresis brakes generate heat during continuous load, cooling structure and thermal performance directly affect stability and lifespan.

④ Control Method

Options include:

Analog voltage control

Closed-loop feedback control

Digital precision control

⑤ Torque Stability and Repeatability

A high-quality hysteresis brake provides consistent torque output regardless of speed, temperature, or load changes — essential for precision tension systems.

⑥ Application Suitability

Different industries require different performance priorities:

Industry	Key Requirement
Lithium battery film / optical film	Ultra-low tension
Metal foil slitting	Fast response & cooling
Printing and labeling	High torque stability

Conclusion

Choosing the right hysteresis brake ensures stability, accuracy, and better product quality across the entire production process.