Custom-assembled sectional door spring, designed for optimal and long-lasting operation.
Made of shot-blasted and powder-coated steel with aluminum mounting and tensioning mandrels. Composition: one left spring (marked red) and one right spring (marked black).
Each equipped with a movable torsion piece and a fixed torsion piece. Select the inside diameter, wire size, and length according to your needs.
Unsure? Contact us for technical assistance here.