Description Overview Mattress edge support spring machine Includes wire-straightening, wire-winding (center spring making) and spring-bending Technical Specifications Output: 25-30 pieces per minute Applicable steel wire type I: Φ2.5-Φ3.5 mm Applicable steel wire type II: Φ3.5-4.0 mm Middle spring diameter: Φ1.0 to Φ3.0 mm Free height: 140 mm to 200 mm Motor power: 2.2 kW