Description Overview Sewing head: chain stitch Mattress thickness range: 50 to 450 mm Weight: 650 kg Specifications Working table size: 1560 x 1960 mm Lifting mode: electric lifting Lift height range: 0 to 280 mm Deceleration mode: automatic deceleration Power supply mode: bottom chassis power supply (more safe) Voltage: 1-phase or 3-phase, 220 volts, 60 or 50 Hz