Qiuerte Heavy-Duty Adjustable Dock Leveler for Trucks – Drive-On Ramp with Fast Loading/Unloading, Forklift-Accessible Cargo Platform Bridge

Overload protection : Hydraulic unit with overload protection device. If overload, the hydraulic station automatically relief pressure and stop running.
Emergency Stop : The lift can be stopped immediately in case of any emergency.
Emergency Lowering : The platform can be lowered down manually in case of power failure.
Explosion-proof valve: The hydraulic system is equipped with explosion-proof valves, which can prevent the sudden drop of the platform if the oil pipe breaks.
Safe sensor: When the platform declines, if it touch anything, it will be stopped, so ti can protect goods or operators.(Optional)