Description Overview Full automatic transfer line for Bonnell inner spring units Controlled by a digital servo system with full automatic continuous transfer from coiler to assembler Steel wires enter the line and inner spring units exit Adopts digital and modular design Specifications Model: C-90 Production: 12 spring units per hour (spring unit size: 1.5 m x 2 m) Spring type: Bonnell Spring diameter: 67 to 90 mm Steel wire diameter: 1.9 to 2.5 mm Spring height (can be customized): 100 to 180 mm (less than 80 mm needs to be customized) Spring coils: 4 to 7 coils Helical wire diameter: 1.3 to 1.4 mm Maximum spring unit width: 2050 mm Included Components Digital spring coiling machine Assembling machine Conveyor machine Operation Steel wire is produced into springs by the spring coiling machine Springs are sent to the assembling machine by the conveyor machine Springs are produced into spring units by the assembling machine Condition This traditional semi-automatic production plant produces small quantity spring units and various specifications of spring units