Springs are significant components in clamping devices within mechanical engineering. Consider a CNC milling machine: the device clamping the workpiece in place uses a spring. A good spring selection can increase the effectiveness of the device and reduce the risk of part failure. Therefore, learning about springs is helpful for engineers who work with clamping devices.

The decision on which type of spring to use depends on the requirements of the specific industry. Various springs may suit different clamping devices. For example, a compression spring's strength and longevity might be a great fit for certain clamping devices. On the other hand, some devices may better work with an extension spring's quick reaction to changes in load. The aim is to not only know the different types of springs but also their application in different environments.

Understanding Springs and Clamping Devices

Springs are components that store mechanical energy. This mechanical energy is a result of force-induced deformation or compression. In clamping devices, springs contribute towards the stability of the workpiece because of their ability to grip securely. When the clamping device is in operation, the associated force leads to the compression of the spring, culminating in energy storage.

Contrary to common assertions, a reduction in the mass of a spring does not escalate the clamping force. The mass of the spring remains constant irrespective of compression or deformation. The clamping force is influenced by the properties of the spring material, as well as characteristics such as the spring constant and degree of deformation. The behavior of these factors is determined by Hooke's law.

When selecting a spring for a clamping device that is integral to high-precision machining, the produced clamping force by the spring should be assessed because it directly affects the stability of the workpiece during operation and thus, impacts the precision of machining. A spring of lower strength might permit the workpiece to move, leading to inaccuracies in the machining process. Alternatively, a very strong spring might cause damage to the workpiece.

Therefore, when choosing suitable springs for clamping devices, it is essential to evaluate these parameters.

Selection Criteria for Springs in Clamping Devices

Troubleshooting and Maintenance of Springs

Innovations and Key Suppliers in Spring Technology

Materials and design procedures have improved spring technology. One area of interest is spring design for clamping devices. Applying composite materials in spring production helps to establish a balance between stiffness and weight. This contributes to the creation of lighter clamping devices without reducing their clamping force capacity.

Notable contributors in the spring production market are MW Industries, Seeger-Orbis, and Lee Spring. MW Industries focuses on producing springs that cater to specific load-bearing needs. Seeger-Orbis is known for its line of retaining rings and washers. Lee Spring, on the other hand, responds to immediate requirements by maintaining a broad inventory of stock springs.

Regular monitoring of industry developments in spring technology keeps engineers informed. This helps them uphold regulatory safety standards and maintain effectiveness in their designs. Establishing stable connections with suppliers allows engineers to acquire knowledge about the latest materials and design procedures. This enables them to optimally apply these in their clamping devices. These measures contribute to the improved performance of the tools and devices they design.


Springs in clamping devices are integral parts of the mechanism, contributing to its functionality. Their design and selection require an understanding of their operation to achieve the desired outcome. The selection, for example of the appropriate spring stiffness, is crucial as it determines the clamping force the device is able to exert, affecting operation. Therefore, careful consideration of these factors during the design and selection process will ensure an effective performance.