Tension / Extension Spring

Tension / Extension Spring

Reliable Stretch. Consistent Return.

Tension (Extension) springs are tightly wound helical coils designed to operate under pulling forces. They extend when a load is applied and return to their original shape once the force is released. At Supertech Spring Industries, we produce high-precision tension springs that offer controlled extension, smooth return action, and dependable elasticity for diverse mechanical and industrial applications.

Production Range:
Wire and Bar Diameters from 0.10mm to 20.00mm

Materials Used:
● As per IS 4454 Spring Steel Wire Grades 1, 2, 3
●As per IS 4454 (Part II) & (Part III) – Oil Hardened and Tempered Spring Steel Wire Grades FDSiCr (2D)
● As per IS 4454 (Part IV) – Stainless Steel Wire Grades 302 & 304
● Phosphor Bronze, Spring Brass, and Copper-base Wires

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Types of Tension Springs

Side Stand Spring

Brake Shoe Spring

Clutch Spring

Tension / Extension Spring

Features of Our Tension / Extension Springs

Our extension springs are engineered to deliver stable tension, excellent elasticity, and long-term performance. Each spring is manufactured with careful control over coil pitch and hook design to ensure smooth and consistent operation.

High Elastic Strength

Made from premium-grade spring steel that provides excellent stretchability without permanent deformation. Ensures consistent performance even under repeated loading cycles.

Precision Hook Formation

We offer various hook and loop end styles including machine hooks, crossover loops, and custom designs. This ensures proper attachment and efficient load transfer in your mechanism.

Corrosion Resistant Coating

Optional protective finishes help guard the spring against rust, humidity, and harsh working environments. Enhances life span and reduces maintenance needs.

Custom Load Tension

Every spring can be manufactured to match exact pull force, extension range, and stress tolerance. Perfect fit and smooth operation in any machine assembly.

Multiple End Style Options

Choose from a variety of hook types depending on strength, space, and movement requirement. Proper end style selection ensures durability and stable mounting.

Application Versatility

Widely used in automotive systems, industrial machinery, electrical panels, household devices, gym equipment, valves, and more. Designed to perform effectively in both light-duty and heavy-duty applications.

Precision in Every Stretch

Designed to Pull with Confidence and Return with Stability

Our tension springs undergo strict testing for load accuracy, return force, and life cycle endurance. With advanced CNC manufacturing and skilled quality control, we deliver springs that perform reliably in dynamic motion environments while ensuring long operational life.

Tension / Extension Spring