Flat Metal Spring Clips Manufacturer
Heju Stamping is a professional OEM/ODM manufacturer of produing a variety of small flat springs. Such as safety IV catheter metal clips, cellphone motor vibration clips and semiconductor testing clips, etc. Those custom flat springs are widly used in automotive, consumer electronics, connector,telecommunications and medical inductries.
Performance Index of Small Flat Springs
100 Million Times
Flat Spring Clips Lifetime
1 Million Times
Insert and Extract Times
Accuracy ±0.005mm
Accuracy of Flat Metal Clips
±0.05
Verticality Tolerence (mm)
±0.05
Straightness
(based on 10mm)
How We do
1) To ensure the parts the same as drawing and meet the function of elastic, Heju using a dozen of operations to forming step by step, and doing some special treatment for bending mold part.
2) Using axiliary bridge structure layout design to ensure the parts’ dimension stable.
Our Critical Controling Points
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Flat Metal Spring Clips
commission test -
Raw Material
hardness test, elongation test, tensile strength test, yield strength test -
After Plating
salt spray test, coating thickness test, high temperature aging test
Frequently Asked Questions
How to ensure the life time of small flat metal clips?
The life time of flat metal clips can reach 10-100 thousand times. To ensure the life time, Heju stamping will make material or contacts heat treat.In that way, hardness can keep in 36-52 HRC.
How to solve the problem of large size and small size?
The abrasion of punching cutter,material deformation can lead to the punching hole to large or too small.In practice, Heju stamping will find a solution to the problem according to the specific circumstances.such as: Material testing,regular maintenance of mold parts etc.
How to choose the material to ensure the performance of metal clips?
To ensure the performance,we usually choose the ECuSn-C with high hardness, toughness and good corrosion resistance. The ECuSn-C contact can ensure 500,000 times life at least.Except the material, the thickness, technology process and others can influence the performance and life time.
How to avoid the elastic part of the spring to produce greater stress (rebound)?
While forming,most of contacts need bending process.If curvature radius is too small, the bending parts will produce large rebound.So the curvature radius must be 5 times larger than the thickness of the material at least.