Compression springs are the workhorses of industrial mechanisms — providing consistent return force in valves, actuators, jigs, and machine guards. Part number CCS33. Champion compression springs are stocked in a range of lengths and wire diameters to suit common maintenance and fabrication requirements. Where this tool is used Return force in valves, machine guards, actuators, jigs, dies, and general mechanical assemblies. Common in preventive maintenance parts stocks for workshop and production machinery. General maintenance and workshop applications. Selecting the right option Match the spring wire diameter, outside diameter, and free length to your application. For critical applications, confirm the spring rate (N/mm) and maximum working load against your design requirements.