
HDBHDB Series of New Arm Disc Brake
HDB Lever-Type Disc Brakes HUAWU

HDB is Huawu's new generation of arm-type disc brakes with cast arms: fewer parts, higher stiffness and transmission efficiency. It is driven by the compact in-house HED valve-controlled thruster with shorter response time. Two sub-series: HDB21 (discs 355–710 mm, 755–5,165 N·m, approx. 175 kg without thruster) and HDB31 (450–1,100 mm, 3,150–32,000 N·m, approx. 275 kg). Stepless lining wear compensation, IP65, anti-corrosion design for marine climates. The BMS-III system monitors clamping force, temperature, push-rod stroke and wear and transmits data via Profibus or CAN.
Specifications
- Sub-series
- HDB21, HDB31
- Braking torque
- 755–32,000 N·m (μ = 0.43)
- Brake disc diameter
- 355–1,100 mm, thickness 30 mm
- Thruster
- valve-controlled HED600-50…HED8000-80, 0.37–1.5 kW
- Clamping force
- 6,845–80,000 N
- Shoe clearance
- 0.7–1.1 mm per side
- Protection / environment
- IP65; −20…+50 °C, humidity up to 100%, salt spray
- Monitoring
- BMS-III: force, temperature, stroke, wear; Profibus or CAN
Applications
- Hoisting mechanisms of port and large special cranes
- Port handling machines
- Metallurgical cranes
- Mining machinery and conveyors
- Emergency braking of critical mechanisms
We will select the right size for your task and prepare a quotation under a direct SDS contract.







