Description Overview Spring unit unpressing machine Model: SB252 Widely used for unbalancing compressed bonnel-spring units Designed to safely handle spring-unit unbalancing which generates giant counterforce by screw-feeding structure Simple to operate and easy to maintain Used for unpacking spring units Specifications Main motor power: 3 kW Max pressure: 600 kN Max unbaling quantity: ≤ 20 pcs Spring end-coil diameter: Φ 85 mm Power supply: 380 V, 3 phase, 60 Hz Upper-platform speed: ≤ 3 m/min