Supro Spring & Wire Forms, Inc. * 6440 Norwalk Rd. Unit N * Medina, OH. 44256 * U.S.A. 

​Extension & Torsion Springs


  • Wire Diameter: Up to 5mm(.197").
  • Wire Types:  Music, Hard Drawn, Stainless Steel, All other tempered alloys.
  • Extensive Quality Control Systems:  Load testing, Torque testing, Cycle and Fatigue testing.
  • Engineering and design assistance using SMI's latest software.
  • New product development and prototyping.
  • We have some of the most advanced CNC Spring making equipment available in the world. 
  • In-Line stress relief.
  • Assembly of spring silencers.  
  • Nylon 11 coating of hook ends to minimize noise/squeaks.

Phone: 330-722-5628