Description Overview Screw driven Type/model: BK-6 The BK-6 will safely handle today's inner springs with higher coil counts, heavier wire gauge and new coil designs. The BK-6 is rated at the industry standards for 18,000 lbs (8,175 kg) opening pressure and screw drive rating in excess of 36,000 lbs (16,350 kg). Electrical Specifications Volts: 220 Phase: 3 Current: max. 25 amp Machine wired: 220 V, 3 ph, 60 Hz Dimensions Top base: width 80 3/4 in (2,050 mm), length 84 3/4 in (2,150 mm) Bottom base: width 80 1/2 in (2,050 mm), length 83 in (2,110 mm) Condition Catalogue picture.