Description Overview 2000 mm wide Spring type: Bonnell Approximate productivity: 30,000 coils per 8-hour shift Specifications Internal end ring diameter range: 76 – 88 mm internal diameter Spring height: minimum 110 mm and maximum 200 mm Spiral wire diameter: 8.9 mm outside diameter Maximum spring unit width: 2000 mm Maximum number of jaws: 16 Power requirements: 380 V, 3 A, 3 phase; machine can work with 50 Hz or 60 Hz