Extension springs can be wound left-hand or right-hand. We manufacture extension springs from ø 0.1-16.0mm spring wires.
Extension spring material options include ordinary spring steel (e.g., EN 10270-1 SM), stainless spring steel (e.g., EN 10270-3-1.4310), galvanized spring steel or acid-proof spring steel, as well as special grades, such as Inconel, Nimonic and titanium.