this air disc brake linked by braking springs in normal status(not supply air pressure), and released after supplying air pressure. It is suitable used for safe and emergency stop situation. Wide torque adjustment. 

HABB spring engaged brake is widely applied in rubber machine roller, conveyor, elevator, handling machinery, food machinery, printing machinery, grinder, motor braking, rubber tire machinery, packaging machinery, printing machinery, forming machinery, automatic machine, wire machinery, wood machinery, filling machinery, plywood machinery, medical machinery, stretch wire machinery, fiber machinery, metal process machinery, pulverizing machinery, tire forming machinery, paper making machinery and etc. Now the clutch, brake, torque limiter are already to be the standard used equipment in rotating control and transmit fields. It is strong, durable, efficient, precise orientation, control and overload protect advantage. Depends on its simple, durable, superior quality and other characters, now this brake is widely applied in modern industry.