TLT240SB 4000KG TWO-POST LIFT: FEATURES DOUBLE HYDRAULIC CYLINDERS, HIGH-STRENGTH CHAIN DRIVE FOR STABLE LIFTING AND LOWERING. PATENTED SLIDER BRACKET DESIGN ENHANCES EFFICIENCY. EQUIPPED WITH BILATERAL MANUAL SAFETY UNLOCKING, 24V LOW VOLTAGE CONTROL BOX, AND CYLINDER TRAVEL LIMIT SWITCH FOR MAXIMUM SAFETY. CE CERTIFIED.