Spring coil machines, used in a range of manufacturing setups, help reshape metal wires into springs of various forms and dimensions. This article discusses important operations such as managing the wire feed and modifying coil sizes to improve machine use. Additionally, we focus on the necessary safety measures during the wire feed process, a task often overlooked in terms of safety risks. To further your understanding, we provide a practical example of an engineer who properly attaches the wire to the feed mechanism, maintaining the right tension. With these details and techniques, you can better use your spring coil machine, avoid common errors, and improve production quality.

Feeding the Wire

The process of manufacturing springs on spring coiling machines commences with the input of the wire into the machine. This wire is generally supplied from a spool which counter-rotates against the innate resistance of the wire, generating a uniform tension. To avoid issues during production such as fluctuating spring diameters or distortions, it is essential to observe and control the tension of the wire. For instance, insufficient tension can lead to a deformed spring post coiling, while unexpected changes in tension could distort the spring.

An additional factor that plays a role in the production of springs is the feed angle, the angle at which the wire enters the machine. Any change in the feed angle can cause abnormal bends in the springs and inconsistent tension, resulting in variation in the final output. As a result, it is crucial to maintain uniform wire feed angles and tension. For instance, a poorly adjusted feed angle may lead to uneven coiling of the spring and uneven tension distribution.

The ongoing monitoring of tension and feed angle enhances precision and regularity in spring coiling machines. This attention to detail not only optimises the quality of the springs but also augments safety by mitigating the risk of operational problems caused by inconsistencies in wire feeding or tension. Thus, the correct management of tension and feed angle is deeply ingrained in the operational principles of spring coiling machines.

Adjusting the Coils

In a spring coiling machine, the adjustment of coils goes beyond merely feeding the wire and demands precision to ensure the desired coiling. This task typically involves manipulating a certain controlling element or a lever so as to alter the pitch of the spring, defined as the distance between two successive windings.

As an example, consider the integration of a spring into a vehicle's suspension system. Improper adjustment might have consequences on ride quality, safety, or could even trigger a mechanical failure. That's why regular inspection plays a crucial role in the coil adjustment process, where one needs to verify the size and alignment of the springs.

The settings for coil adjustment might differ based on the spring's eventual application. For instance, a spring designed for a wristwatch will need a narrower pitch and a thinner wire compared to one designed for a car suspension. Therefore, the adjustment settings have to be in line with the requirements of the spring's intended use.

The right coil adjustments lead to the desired performance of the final product. Springs are necessary components of many devices, and their performance largely depends on how precisely they match the product specifications they are part of.

Spring Dimension Limitations

Each spring coiling machine has a specific range of spring sizes it is able to produce. This is influenced by the design and structure of the machine. The size limitations refer to the smallest and largest spring dimensions a machine can manufacture. Understanding these size limitations assists in appropriate machine selection and project planning.

For instance, using a wire with a diameter larger than the machine capacity may result in machine malfunctions and operation interruptions. Size limitations also apply to the coil's outer diameter and the resultant spring's length. If a spring coil has an outer diameter greater than the machine's capability, it can interfere with operations, potentially causing machine damage.

Machine material strength, operational speed, coil thread pitch, and desired final spring shape determine the limitations on spring dimensions. For example, a machine with a substantial coil thread pitch or rapid operational speed may have difficulty creating small, taut springs. Being aware of these constraints enables you to select an apt machine for your requirements and design springs methodically.


The spring coiling machine plays a role in various industries due to its ability to produce different sizes of springs accurately. Understanding how to operate the machine, from wire feeding to coil adjustment, is vital. It's crucial to know your machine's limitations when it comes to spring dimensions to ensure the machine operates correctly. By fully grasping and accurately applying the procedures in spring coiling, you can enhance the quality of the springs produced.