
BYWBYW, BYWZ5, BYWZB Series Explosion Protected Drum Brakes
Explosion-Proof Drum Brakes HUAWU BYW

Huawu explosion-protected electro-hydraulic drum brakes for mechanisms in explosive gas atmospheres. The sub-series mirror the industrial ones: BYW to JB/T 6406-2006 with torque per DIN 15435, BYWZ5 to GB 6333-86, BYWZB to JB/ZQ 4388-86. Drum diameters 160–800 mm, braking torque 80–12,500 N·m, weight 33–595 kg. Driven by flameproof Ed…Ex thrusters to GB 3836.2; the catalogue specifies gas groups IIA, IIB, IIC and temperature classes T1–T4. Shoe clearance equalization, self-lubricating hinges, spring with torque scale; BYW also offers wear compensation and a lining wear limit switch.
Specifications
- Sub-series
- BYW, BYWZ5, BYWZB
- Braking torque
- 80–4,000 N·m (BYW, BYWZ5); 100–12,500 N·m (BYWZB)
- Brake drum diameter
- 160–500 mm (BYW, BYWZ5); 200–800 mm (BYWZB)
- Thruster
- flameproof Ed300-50 Ex…Ed3000-120 Ex (GB 3836.2)
- Explosion protection
- Exd IIA / IIB / IIC, T1–T4 (BYWZB: I, IIB per operating conditions)
- Thruster supply
- 3 × 380 V, 50 Hz (440 V, 60 Hz on request)
- Duty and conditions
- S1 and S3-60% (up to 1,200 cycles/h); −20…+40 °C, altitude up to 2,000 m
- Standards
- JB/T 6406-2006; DIN 15435 (BYW), GB 6333-86 (BYWZ5), JB/ZQ 4388-86 (BYWZB)
Applications
- Crane hoisting and travel mechanisms in hazardous areas
- Belt conveyors in coal mines
- Port handling equipment in explosive atmospheres
- Metallurgical and construction machinery in hazardous areas
We will select the right size for your task and prepare a quotation under a direct SDS contract.







