LOWERING COIL SPRINGS

All lowering spring designs are designed on an advance CAD program. State of the art design programs are crucial when designing linear and progressive rate springs to ensure laden and unladen spring rates are correct to provide the best possible ride comfort and handling.

SUP-9 is a new generation High Strength Performance Spring Steel which with-stands higher operating stresses and has superior resistance to sag, improved toughness and improved corrosion fatigue properties.

After the coil is formed it is then placed quenched in oil whilst still at 850°C  and hardened to 62 HRC. After the Hardening process the coil is then placed into the Tempering oven and heated back up to 400°C . Coil will be now tempered to a 54 HRC.

Wounded coil is now dipped with a phosphate coating for maximum corrosion protection. A durable epoxy powdercoat finish provides extreme protection against the elements.