Engineered for Smooth and Progressive Force Output
This spring is a testament to our expertise in non-standard custom spring manufacturing. We are based in Yueqing, Zhejiang, and while our company was officially established in 2021, our core team has been working in the spring industry for over two decades. We specialize in producing a wide variety of custom springs, and this product is one of our key technical advantages. The pitch of the Variable pitch spring changes along its length, unlike a standard spring with uniform spacing, which allows for a more controlled and progressive force output.
This spring has a wire diameter of 1.4 mm, an outer diameter of 13 mm, a free length of 30 mm, and a total of 8 coils. The variable pitch design means that different coils respond differently during compression. This unique structure allows it to deliver a much smoother force curve compared to standard springs. We select SUS316 stainless steel for its outstanding corrosion resistance, and it can pass a 96-hour salt spray test. We have specifically designed this Variable pitch spring to withstand over 500,000 compression cycles in fatigue testing, ensuring it maintains its performance over a long lifespan.
Our quality control covers the entire lifecycle of this product. We test the tensile strength of all incoming raw materials. During production, our inspectors perform checks every 30 minutes. For this particular model, we focus heavily on testing its unique force curve, which is its defining characteristic. We use professional tensile and compression testing machines to verify its performance. Each batch of the Variable pitch spring is assigned a unique number for full traceability back to the raw material source. This rigorous approach guarantees consistent quality in every delivery.
Expert Support and Fast Custom Sampling
We provide comprehensive pre-sales technical support, and our engineers can review your drawings to confirm the feasibility of dimensions and tolerances. We can complete custom samples for this spring within 1 to 3 working days. We prioritize sample production for new product development. Our factory covers over 3,000 square meters with more than 70 main production machines and 10 precision testing devices. This gives us the capacity to handle your orders efficiently. We offer bulk order discounts for large quantities-the larger your order, the better the unit price.
Product Specifications
|
Parameter |
Value / Specification |
|
Product Name |
Variable pitch spring |
|
Wire Diameter (mm) |
1.4 |
|
Outer Diameter (mm) |
13 |
|
Free Length (mm) |
30 |
|
Total Coils (Coils) |
8 |
|
Material |
Stainless Steel SUS316 |
|
Surface Treatment |
None |
|
Performance Features |
Variable Pitch Design, Salt Spray 96+ Hours, Fatigue Resistant 500,000 Cycles |
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