Coil Springs

The hot-formed compression steel springs are further treated and processed to achieve an optimal strength and toughness ratio of the material, ensuring high operational stability and durability of shape. Hot forming technology enables to produce and supply springs in a wide range of sizes, accuracy and design.

Individual customer requirements are verified by the finite element method to assess the accuracy of the load parameters. Development and design of coil springs are in conformity with the customer's technical expectations and also with the competitive environment.

Technical specifications

Dimension range of produced coil springs
d [mm]	15 ÷ 55
Di [mm]	90 ÷ 380
De [mm]	101 ÷ 400
L (developed length) [mm]	1000 ÷ 8500
Lo [mm]	120 ÷ 700

Comment
Material	51CrV4, 52CrMoV4
Surface protection	Application of paint by dipping or spraying Powder painting Cataphoresis

Testing options in HZP

Laboratory

Laboratory tests
Chemical composition
Metallographic tests (structure, grain size, decarburization)
Mechanical properties (hardness, tensile test, impact strength test)

Testing of surface treatment
Corrosion tests (climatic chamber)
Adhesion of paint

Endurance tests

Equipment for dynamic tests up to 120 kN

Coil Springs

Technical specifications

Testing options in HZP

Laboratory

Endurance tests

References