SDH 370.32 - 370.45 - 370.50 has a Perfect synchronization between carriages regardless of load distribution. Equipped with safety valve to prevent overloading and in case of hydraulic pipe fracture,Self-controlled lowering speed,Mechanical safety latch with automatic engagement ensuring maximum safety when lift is in standing position. and Each column features a maintenance-free lifting cylinder. Synchronization cables grant the levelling of the two carriage