Latest Products
Contact Us
- Wei Four Road, Weizhuang industrial Park, Changyuan District, Xinxiang City, Henan Province, China
- sales@zybc.com
- +86-373-7136666
QWZ5-315/50 Series Pneumatic Drum Brake
QWZ5-315/50 is a QWZ5 series pneumatic drum brake, where 315 refers to the matching brake drum diameter of 315mm, and 50 denotes the model of the supporting QG50 cylinder, suitable for industrial equipment requiring reliable pneumatic braking with on-site air supply. Below is its detailed...
Description
QWZ5-315/50 is a QWZ5 series pneumatic drum brake, where 315 refers to the matching brake drum diameter of 315mm, and 50 denotes the model of the supporting QG50 cylinder, suitable for industrial equipment requiring reliable pneumatic braking with on-site air supply. Below is its detailed specification and performance introduction:
Core Technical Specifications
| Parameter | Details |
|---|---|
| Brake drum diameter | 315mm |
| Rated braking torque | Typically 800–1200 N·m (adjustable via spring force) |
| Operating air pressure | 0.5–0.7 MPa |
| Brake shoe clearance | 0.8–1.2 mm (self-balanced, no manual adjustment) |
| Cylinder model | QG50 pneumatic cylinder |
| Brake lining | Non-asbestos semi-metallic, clip-on for quick replacement |
| Operating ambient temperature | -20°C to +50°C |
| Relative humidity | ≤90% |
| Operating duty | S3-60% (1200 cycles/hour) or S1 continuous operation |
| Weight | Approx. 45–50 kg |
| Compliance standards | GB6333-86 (connection dimensions), JB/T6406-2006 (technical requirements) |
Key Structural & Performance Advantages
Safety & reliability: Fail-safe design-brakes via spring force when air supply is cut off, preventing accidents from sudden air loss. Interlocking shoe clearance equalization and automatic alignment keep both sides balanced, avoiding one-side pad drag on the drum.
Low maintenance: Main hinge points use self-lubricating bearings with high transmission efficiency, no additional lubrication needed. Clip-on brake linings allow fast replacement without disassembling the brake body.
Stable braking: QG50 cylinder provides smooth actuation; adjustable spring force enables precise braking torque tuning to adapt to different loads and speeds.
Flexible installation: Multiple mounting orientations available, compatible with various industrial equipment layouts, and easy to integrate into existing drive systems.
Typical Applications
Widely used for deceleration, parking braking, and safety protection of mechanisms in cranes (bridge, gantry), belt conveyors, port handling equipment, and metallurgical machinery-ideal for heavy-duty, high-frequency operation scenarios with on-site compressed air supply.
Maintenance Recommendations
Daily inspection: Check for air leaks in the cylinder and air lines; ensure the clearance equalization device works normally; clean dust/debris from the drum and linings.
Periodic maintenance (3–6 months): Inspect lining wear-replace when thickness is below 3mm; check spring force and adjust if torque decreases; verify tightness of fasteners and pins.
Special environment: For outdoor/salt-mist/acid-mist conditions, use anti-corrosion coatings or select customized anti-corrosion models; drain moisture from the air system regularly to prevent cylinder rust.
Hot Tags: qwz5-315/50 series pneumatic drum brake, China, manufacturers, supplier, factory, customized, Air Brakes, Belt transport Pneumatic drum brake, crane Pneumatic drum brake, Metallurgical Pneumatic drum brake, pneumatic disk brakes, Port handling Pneumatic drum brake
You Might Also Like
