Compression spring coiling machines play a pivotal role in the manufacturing of springs designed to handle compressive forces, utilized in a broad range of applications such as automotive and aerospace components. The outcome of these machines is crucial to the integrity of the springs produced. Achieving the desired quality involves proper machine setup and the selection of appropriate materials. Key factors include choosing the right wire diameter and selecting materials suited for the intended environmental conditions and stresses. This article will examine the operational principles of spring coiling machines, outline the necessary criteria for producing dependable springs, and explore how the choice and adjustments of the machines influence their operation. We will also highlight the capabilities of various manufacturers' machines in relation to the spring production process, aiming to assist engineers in effectively aligning spring design with the specifications of their applications.

How a Spring Coiling Machine Works

A compression spring coiling machine is a device designed to create springs by coiling wire. Initially, the wire is pulled from a supply spool and passed through guides and straighteners to remove any bends or distortions, which could negatively affect the spring's performance. The straightening process is intended to prevent defects like irregular coils that may lead to uneven force distribution when the spring is under load.

The coiling stage involves winding the wire around a cylindrical form known as a mandrel, which establishes the spring's diameter. The wire is advanced around the mandrel by rollers or gears, and the distance between the coils, known as the pitch, is regulated by the mandrel and a pitch tool. For applications that require springs with very specific dimensions, it is necessary to precisely control the pitch tool to achieve the required spacing between coils.

After the machine forms the correct number of coils, the wire is then cut. This cutting process is carefully controlled to maintain the structure of the last coil. Machines typically incorporate measurement systems that check the dimensions and force characteristics of the springs to confirm they conform to predetermined standards, which is essential in sectors such as aerospace or medical devices where the reliable performance of springs is critical. These measurement systems help identify variations in production early to maintain consistent manufacturing output.

Springs are often subjected to additional processing after coiling, like heat treatment, to reduce internal stresses caused during the coiling process and to confer the material properties necessary for the spring's function. For instance, a spring designed for use in elevated temperatures may receive heat treatment to sustain its characteristics under such conditions. Moreover, operations such as end grinding are performed to meet design requirements like having flat ends that facilitate the stable incorporation into assemblies.

Coiling Machine Manufacturers


The production of compression springs heavily relies on the performance of spring coiling machines. These machines integrate mechanical functions with electronic controls to assist in producing consistent springs for a range of industries. Applications span from automotive to consumer goods, underscoring the necessity for machines that can fulfill production demands reliably. Understanding the operation of spring coiling machines is crucial for engineers when it comes to selecting the right equipment for their specific design requirements. As the technology of these machines evolves, it offers engineers greater capabilities in designing springs for more advanced applications, thereby sustaining advancements in design and manufacturing processes.