Precision Spring
Our factory produces qualified precision spring with wire diameters ranging from 0.1mm to 3.0mm, outer diameters from 2mm to 50mm, and customizable free height or length between 3mm and 150mm. The dimensional tolerance reaches outer diameter ±0.03mm~±0.1mm and height ±0.05mm~±0.2mm. Strict full inspection ensures every precision spring maintains uniform elasticity and interchangeability for automated assembly lines.
Precision Grade Advantages
Ultra-precise dimensions
Tightly controlled outer diameter, inner diameter, height and coil count to meet strict precision assembly standards.
Excellent batch consistency
Tiny differences in elastic force and stiffness across the same batch for smooth interchangeable assembly.
Premium surface quality
Burr-free, scratch-free and rust-free surface for neat appearance.
Premium raw material options
SWP-A/SWP-B piano wire, SUS304/ SUS316/ SUS631 stainless steel wire, carbon spring steel and copper alloy.
Surface Treatments
Natural finish, zinc plating, nickel plating, gold plating and black oxide are available to satisfy conductivity, anti-rust and aesthetic requirements.
Application Fields
Mainly applied to precision instruments, electronic components, medical devices, communication equipment, aerospace parts and high-end hardware with strict precision standards.
Precision Manufacturing & Testing System
Baoding Zhongxin Spring Manufacturing Co., Ltd. is equipped with multiple CNC precision spring machines and professional testing instruments including optical projectors, spring tension testers and hardness testers to inspect dimension, elastic force and hardness. We implement full quality control covering raw material incoming inspection to finished product delivery. Special precision winding equipment and standardized process control guarantee high precision and stable consistency of each batch of precision spring.
Product Parameter Table
|
Parameter Item |
Value / Range |
|
Wire Diameter Range |
0.1 mm ~ 3.0 mm |
|
Outer Diameter Range |
2 mm ~ 50 mm |
|
Free Height / Length |
3 mm ~ 150 mm (Customizable) |
|
Optional Materials |
Piano Wire (SWP-A / SWP-B), Stainless Steel Wire (SUS304 / SUS316 / SUS631), Carbon Spring Steel / Copper Alloy |
|
Surface Treatment |
Natural / Zinc Plating / Nickel Plating / Gold Plating / Black Oxide |
|
Customization Mode |
Customized per drawings, samples or high-precision requirements |
|
Precision Tolerance |
Outer Diameter Tolerance ±0.03 mm ~ ±0.1 mm, Height Tolerance ±0.05 mm ~ ±0.2 mm |
|
Application Scenarios |
Precision instruments, electronic components, medical devices, communication equipment, aerospace, high-end hardware |
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