Core Competitive Advantages
Built-in emergency manual hand pump, power-off maintenance backup (Core Highlight)
Independent manual hydraulic pump reserved on the unit body; when complete power outage occurs on site, workers can manually pressurize to release rail clamps and wheel brakes for equipment inspection and maintenance, solving the stuck deadlock problem of ordinary hydraulic stations without manual release function, greatly improving on-site operation safety and efficiency.
Integrated compact modular structure, space-saving easy installation
All hydraulic components integrated into one unit, overall volume reduced by 40% compared with traditional split hydraulic stations, no messy scattered pipeline layout. Support vertical, horizontal multi-angle mounting, adapt narrow crane undercarriage reserved installation space, fast assembly without complicated pipeline laying, suitable for old equipment renovation projects.
Seat valve stable pressure retaining circuit, consistent brake clamping force
Adopt low-leakage seat valve combination control circuit, system pressure fluctuation ≤±1% rated value, long-term stable pressure retaining without frequent motor startup. Avoid uneven clamping force of rail clamps and wheel brakes caused by unstable oil pressure, effectively prevent unilateral rail scratch and wheel pad abnormal wear, extend brake and rail service life.
Optional hydraulic accumulator safety energy storage backup
Can configure hydraulic accumulator according to customer demand to store hydraulic energy. In case of instantaneous power failure, the accumulator releases stored pressure to temporarily maintain brake open state, reserve sufficient time for operators to stop crane traveling, eliminate collision safety hazards caused by sudden brake locking during equipment operation.
IP54 all-weather anti-corrosion sealed structure for outdoor harsh environment
Whole unit equipped with external dustproof protective cover, thickened welded steel fuel tank with heavy salt-fog anti-rust coating, all electrical junction boxes fully sealed IP54 grade. Resist coastal high humidity salt mist, mine dust, cement ash and rain erosion, long-term stable outdoor operation without rust jamming and oil leakage faults.
Ultra-low maintenance dual-filter oil purification system
Dual suction + return oil filter configuration continuously filter metal impurities in hydraulic oil, keep oil clean to reduce wear of pump, valve and brake cylinder internal parts. Integrated valve block with few external pipeline joints fundamentally reduces oil leakage points; standard unified spare parts design lower factory inventory and long-term maintenance costs.
Diversified customized matching configurations
Complete model range with different flow, pressure and tank capacity specifications, maximum working pressure up to 20MPa to match light to heavy tonnage rail crane windproof braking systems. Explosion-proof motor version customized for flammable chemical workshops and underground coal mine hazardous zones; complete PLC electrical control cabinet, pressure gauge, travel switch signal feedback function optional, can simultaneously drive multiple groups of rail clamps and wheel brakes to form full anti-typhoon double safety protection system.
Main Application Scenarios
Port rail-mounted container gantry cranes (RMG), rubber-tyred gantry cranes (RTG), container stacker-reclaimers, outdoor portal gantry cranes, bulk grain/ore yard rail trolleys, metallurgical heavy transfer carts, mining bucket wheel stacker-reclaimers; supporting drive YLZ hydraulic wheel brakes, YJGQ/ZYTJ hydraulic rail clamps and other single-acting spring closed windproof braking equipment.
Working Condition Parameters
Sub-model classification: YZB (for wheel brakes), YZBA (for rail clamps)
Rated working pressure: Standard 14MPa, max customizable 20MPa
Protection grade: IP54, outdoor dustproof rainproof design
Core safety configuration: Built-in emergency manual hand pump, optional hydraulic accumulator, dual oil filter circuit
Control mode: Seat valve stable pressure retaining circuit, optional PLC electrical interlock cabinet
Ambient adaption: -20℃ ~ +50℃, coastal salt fog, high-dust mine, open-air bulk material yard environment
Core function: Dedicated hydraulic power source for rail clamp & wheel windproof brake, power-off manual release maintenance backup, synchronous multi-brake centralized hydraulic supply
