Core Competitive Advantages
Independent low-speed shaft emergency safety barrier (Core Highlight)
Installed on the low-speed side of the winding drum, it forms double safety protection together with the high-speed shaft main working brake. Even if the main brake fails, the SB/SBD safety brake can reliably lock the drum to avoid catastrophic safety accidents such as container and heavy cargo falling, meeting domestic and international safety specifications for lifting machinery.
Disc spring passive fail-safe protection
Reliable disc spring group provides stable clamping force. No matter power failure, hydraulic station failure or pipeline rupture, the brake automatically engages without manual intervention, realizing all-condition passive safety locking, ideal for unattended open-air terminals and mining production lines.
Optional dual limit switch signal interlock
Can be equipped with brake release limit switch and friction pad wear alarm switch. The control system can monitor brake working status in real time, trigger alarm or interlock shutdown when pads reach wear limit, avoid hidden dangers caused by excessive friction material consumption.
Excellent environmental adaptability for coastal & mining sites
Adopt high-performance non-asbestos composite friction pads, stable friction coefficient, resistant to water, humidity and sea salt mist, and will not scratch the brake disc surface. IP65 sealed caliper structure prevents dust, rain and corrosive gas intrusion, suitable for seaports, ore yards and high-dust mining workshops.
Low-maintenance modular caliper structure
All rotating hinge points use self-lubricating bearings to reduce regular greasing work; plug-in friction pads can be replaced without disassembling the whole brake body, greatly shortening on-site maintenance downtime. Compact caliper layout adapts narrow installation space of drum undercarriage.
Diversified customized configurations
Complete specification range of SB and SBD-A models to meet different torque demands. Matched YZ series dedicated hydraulic power unit optional; explosion-proof hydraulic assembly can be customized for underground coal mines and chemical hazardous zones; left-right symmetric mounting brackets and anti-salt fog heavy-duty coating available for offshore equipment.
Main Application Scenarios
Port rail-mounted gantry cranes (RMG), ship unloaders, container yard stacker-reclaimers, large outdoor portal cranes, mining winches, inclined anti-reverse belt conveyors, metallurgical heavy lifting equipment, bulk grain and ore handling machinery.
Working Condition Parameters
Working principle: Disc spring braking, hydraulic pressure release, normally closed fail-safe
Protection grade: IP65
Optional accessory: Brake release limit switch, friction lining wear alarm switch
Matching power source: YZ series hydraulic power unit
Ambient adaption: -20℃ ~ +50℃, coastal salt fog, high-dust mine, open-air bulk material yard
Core function: Low-speed shaft emergency safety braking, anti-fall load holding, secondary safety protection independent of main brake
