All 4wd coil springs related 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.
X5K is a new generation High Strength Spring Steel which with-stands higher operating stresses and has superior resistance to sag, improved toughness and improved corrosion fatigue properties which is an important factor while manufacturing 4wd coil springs.
Dr. Nano 4wd coil springs are ‘cold wound’ on most advanced 5-axis CNC coil winding machine
are ‘hot wound’ whilst the bar is still at over 950°C and the hardening and tempering of our coil springs is completed by an extremely precise electronically controlled furnace to eliminate breakage and
Wounded coil is now dipped with a phosphate coating for maximum corrosion protection. A durable epoxy powdercoat finish provides extreme protection against the elements.
For most vehicles, we offer multiple options to best suit customer needs, this ensures correct spring rate is matched for the vehicle model and the accessories added. This provides an enhanced performance, load carrying capacity and off-road ability without compromising safety.