ZWZA200-40 Electromagnetic Drum Brake is a DC normally closed safety braking device specially developed for medium-duty industrial hoisting equipment. It follows the working principle of spring braking and DC electromagnetic release. When the DC electromagnet is energized, the brake opens to ensure normal operation of the machinery. In case of power failure or circuit fault, built-in compression springs instantly drive the brake shoes to clamp the brake drum, implementing rapid fail-safe braking and effectively preventing load dropping and equipment drifting accidents.
Distinguished from AC electromagnetic drum brakes, ZWZA200-40 adopts DC electromagnetic drive, delivering smoother action, lower impact and quieter operation. It minimizes shock to transmission parts during frequent start-stop cycles and extends the service life of the whole machine. The braking torque can be continuously and flexibly adjusted to match different load weights and operating conditions on site. Equipped with premium non-asbestos wear-resistant friction linings, the brake maintains a stable friction coefficient and consistent braking force under long-term cyclic operation.
The brake is manufactured with an integrated high-rigidity cast iron frame, featuring outstanding vibration resistance and structural stability. All hinge and transmission components are precisely machined to guarantee sensitive and reliable braking response. Standard installation dimensions support convenient on-site assembly and replacement. The friction linings can be quickly replaced without extensive disassembly of the brake body, shortening maintenance downtime and reducing operating costs.
With reliable safety performance and stable operation, ZWZA200-40 electromagnetic drum brake acts as critical parking and emergency protection equipment. It is widely matched with overhead cranes, gantry cranes, electric hoists, winches and other medium-duty lifting machinery.
Core Features
Normally closed spring fail-safe design; automatic emergency braking once power supply is interrupted
DC electromagnetic drive, smooth movement, low impact and low running noise
Continuously adjustable braking torque to adapt to various medium-load working scenarios
High-performance wear-resistant friction linings for stable braking and long service life
Solid cast iron body with excellent vibration resistance for frequent start-stop environments
Standard installation size, easy assembly and quick replacement of friction linings
Widely applicable to overhead cranes, hoists, winches and medium-duty lifting equipment
