Electro-hydraulic drum (block) brakes are among the most common crane brakes because they combine strong torque output, reliable fail-safe action, and straightforward maintenance. They are frequently used on hoisting mechanisms to provide secure holding torque and emergency stopping capability (depending on rating). They are also widely applied on bridge travel and trolley travel mechanisms to control acceleration/deceleration, improve positioning accuracy, and prevent drift when the crane is parked.
These brakes typically use an electro-hydraulic thruster to release the brake against spring force. When power is removed, the springs apply the brake automatically, which supports fail-safe behavior for many crane duties. They are especially popular where robustness matters—steel mills, heavy fabrication, outdoor yards—provided the correct corrosion protection is specified. For best results, confirm lining material, brake wheel condition, air gap adjustment method, and compatibility with your duty class and drive control strategy.