Dowell OEM/ODM heavy duty spring large diameter compression Spring for machine car train

Heavy duty springs are compression, extension, or torsion springs with a great amount of force. They have large wire diameters from 1/4\" (inch) to 5\" (inch) in thickness and are required when the spring needs to support a large amount of load in a mechanism.\nHeavy duty compression springs are used in mechanisms that require a great amount of force to be exerted on the spring. You may find heavy duty compression springs in heavy construction machines, agricultural equipment, industrial equipment and oil field equipment.