Sb / SBD series hydraulic safety brake (emergency) brake is a kind of high-power brake used on low-speed shaft (drum shaft), which can be widely used in large and medium-sized cranes Emergency safety braking of low-speed shaft of hoisting and boom pitching mechanism of port handling machinery. Working braking and emergency safety braking of mine hoist, hoist and high-power inclined belt conveyor, safety braking of driving mechanism of cable car and cable crane, and safety (emergency) braking of low-speed shaft of hoisting mechanism of special crane such as casting crane. Main features: 1 Normally closed design, safe and reliable; Special disc spring applies force for braking, which needs to be equipped with hydraulic drive release device. 2. The action is sensitive and the closing time is short. 3. It can be equipped with opening limit switch and pad damage limit switch for interlocking protection and fault display (when controlled by PLC). 4. High performance asbestos free hard friction pad, stable friction coefficient, no damage to the brake disc and insensitive to water medium and salt spray. 5. Reasonable sealing structure design and imported famous brand seals. Good effect and long service life. 6. The installation position is flexible and easy to use Adjust Simple maintenance.