VB-1: Model:YSJ3.0: Lifting weight: 3M/T lifting time: ≤60s Falling time: about 18s Motor power; 220/380V l.5KW Listing rang: MIN 123mm ;MAX 1823mm Actuating medium: 20# wear-resisting oil N.W/G.W: 960kg/1060KG Feature:heavy-duty leaf chain,electric/hydraulic operation;simple operation and control;sutomatic arm restrains;low profile hard rubber lift pads;automatic safety system;12 month warranty VB-2: Model: QJY230: hydraulic two-post lift Lifting weight: 3M/T lifting time: ≤60s Falling time: 18S ≤T ≤50S Motor power; 380V 50HZ l.8KW Listing rang: MIN 120mm ;MAX 1700mm Width between inside columns: 2780mm Hydraulic Oil:YA-N 32( for cold area, use YC-N320) Net Weight: 700kg