Exploring the Different Kinds of Springs in CNC Machining(galvanised sheet Les)

  • Time:
  • Click:141
  • source:ELAND CNC Machining


CNC machining has revolutionized various industries by providing precise and efficient manufacturing solutions. In this article, we will delve into the fascinating world of different types of springs produced through CNC machining. From their applications to manufacturing processes, we will explore how these versatile components contribute significantly to many products across multiple sectors.

1. Compression Springs:
Compression springs are widely used in numerous applications, from automotive suspension systems to industrial machinery. These springs are designed to resist compression forces as their coils are compressed or squeezed together. The manufacturing process for compression springs involves designing and programming a CNC machine to shape a steel wire precisely. By applying controlled pressure, the wire is wrapped around a mandrel with desired pitch and diameter, creating uniformly spaced coils. This process ensures consistency and accuracy while enabling the production of compression springs tailored to specific design requirements.

2. Extension Springs:
Extension springs work opposite to compression springs – they resist stretching forces when pulled apart. Commonly found in garage doors, trampolines, and industrial devices, extension springs often require high tensile strength and flexibility. Creating extension springs using CNC machining begins by winding steel wire onto a mandrel, gradually increasing its length while maintaining the tension within a specified range. Computer control allows meticulous adjustment of each coil's spacing, ensuring optimal flexibility and elasticity in the final product.

3. Torsion Springs:
Torsion springs find wide-ranging applications, including clothespins, mousetraps, and even clock mechanisms. They operate by resisting rotational forces along an axis, exerting torque instead of linear force. To manufacture torsion springs via CNC machining, specialized tools and methods are employed. First, a suitable wire diameter is selected based on the required torque and angular displacement. Then, utilizing CNC machines, the wire is accurately shaped into a helical form with a larger number of closely spaced coils compared to compression or extension springs. The precision engineering involved guarantees uniform force distribution, making these springs ideal for applications requiring rotational torque.

4. Constant Force Springs:
Constant force springs are designed to consistently exert a near-constant amount of force throughout their extended length. Their versatility makes them suitable for numerous industries and products, including window blinds, lamp core holders, and seat belt retractors. To produce constant force springs, CNC machines use specialized tools capable of stretching thin steel strips into tightly wound coils. These coils generate a reliable and even force output, ensuring consistent performance and reliability in various mechanisms.

5. Wave Springs:
Wave springs are known for their compact size, enabling the creation of smaller, lighter assemblies without compromising functionality. They find widespread usage in medical devices, electronics, and automotive applications where space is limited. CNC machining plays a crucial role in manufacturing wave springs as it allows precise control over dimensions, material selection, and tolerances. By utilizing cutting-edge CAD/CAM software, CNC machines efficiently shape flat wire into complex designs with multiple waves, maintaining high accuracy throughout the production process.


CNC machining has transformed the production of different types of springs by providing exceptional precision, efficiency, and customization options. From compression and extension springs to torsion, constant force, and wave springs, each type serves unique purposes across various industries. Understanding the design considerations, materials, and manufacturing processes involved in creating these versatile components helps facilitate innovation and enhances product performance. As technology continues to advance, CNC machining will undoubtedly remain instrumental in shaping the future of spring manufacturing. CNC Milling