Ganesh, Extension springs are designed to offer resistance to pulling forces as well as to absorb and store energy. We offer our customers with a wide range of high grade extension springs. These extension coil springs can be provided in varying lengths and degrees of tension as per the various pulling forces. We provide a standard range of extension springs in hook and crossover loop ends. We also have the capability to design and manufacture springs of specific dimensions according to client's industrial requirement. We manufacture extension coil springs to meet the load capacities in diverse applications. There should be some mechanical limit on how far the spring can be extended. Otherwise, the spring will lose its shape and will not return to its initial condition with all coils closed. Extension springs operating in a high-temperature environment may have to be coiled extra-tight, as the heat will tend to weaken the spring. Therefore, we manufacture extension coils springs using materials that have lesser elasticity and more endurance level.

Extension springs are typically made with initial tension, which forces the coils to press against each other in the unloaded position. Extension springs are typically installed with an initial tension that stretches the spring until the coils are close to separating. After the initial tension has been applied, the extension spring deflects only if it receives a load greater than the initial tension. Extension springs have hooks on their ends to attached them to the application. Various hook styles and configurations are available depending on the particular application.