YWZ5‑160/B30 Series (Explosion‑proof) Electro‑hydraulic Drum Brake is a flame‑proof fail‑safe safety brake specially developed for hoisting and conveying machinery operating in explosive‑gas hazardous environments. It operates on the principle of spring‑applied and hydraulic‑release. Under power‑off conditions, high‑strength compression springs drive the brake shoes to clamp firmly against the brake drum, delivering reliable emergency braking and parking braking functions. When energized, the supporting certified explosion‑proof electro‑hydraulic thruster generates thrust to push open the brake shoes and release the brake drum, so that the host equipment can run normally.
The complete brake assembly is equipped with qualified explosion‑proof electro‑hydraulic thruster and fully complies with applicable explosion‑proof safety standards. It effectively isolates potential ignition risks from electrical sparks, enabling safe operation in coal mines, chemical plants, petrochemical facilities and other sites with flammable and explosive gas mixtures. Adopting high‑friction wear‑resistant brake shoes, this brake maintains stable braking torque under heavy‑load conditions and frequent cyclic braking. The heavy‑duty cast‑steel frame provides outstanding structural rigidity and impact resistance to cope with harsh industrial working conditions.
Brake shoe clearance can be conveniently adjusted on‑site. Worn brake shoes can be quickly replaced without complete disassembly of the brake unit, shortening maintenance cycles and reducing equipment downtime. All hinge transmission positions are precision‑machined to ensure sensitive, smooth and consistent mechanical response during long‑term continuous operation.
As an essential safety‑critical braking component, YWZ5‑160/B30 series explosion‑proof electro‑hydraulic drum brake is widely installed on overhead cranes, gantry cranes, electric hoists and belt conveyors serving explosive hazardous working zones.
Core Features
‑ Complete flame‑proof brake assembly equipped with certified explosion‑proof electro‑hydraulic thruster
‑ Spring‑applied, hydraulic‑release fail‑safe design, automatic braking upon power failure
‑ High‑friction wear‑resistant brake shoes, stable braking torque and long service life
‑ Heavy‑duty cast‑steel frame, high structural rigidity for heavy‑load industrial applications
‑ Complies with explosion‑proof standards, safe for flammable and explosive‑gas hazardous areas
‑ Convenient on‑site adjustment of brake shoe clearance, fast shoe replacement, low maintenance cost
‑ Precision‑processed hinge parts for stable and sensitive mechanical action response
‑ Widely applicable for overhead cranes, gantry cranes, hoists and belt conveyors in coal mines and chemical plants
