STURDY PRODUCTS ADVANTAGES
All leaf springs are hardened, quenched and tempered in accordance with national standards to ensure strict control of the hardness and elasticity of the leaf spring, thereby reducing stress concentration during the use of the spring and improving durability.
HIGH-QUALITY STEEL
STURDY LEAF SPRING always choose original high-quality raw materials from state-owned enterprises.
Ensure good quality 60Si2Mn, 50CrV, 55CrMn, 60CrMn, SUP9, SUP9A, SUP10 etc. materials.
Shot Peening Technology
Shot blasting of a spring sheet in a prestressed state increases endurance and durability of the springs up to 200%.
ANTICORROSIVE COATING
Anticorrosive coating is carried out in five stages to achieve thickness sufficient to resist corrosion in salt fog up to 1000 hours:
- Shot blasting
- Degreasing
- Zinc phosphate coating
- Cataphoretic priming
- Polyurethane finish coating