Shandong Zhuowang Machinery Equipment Co., Ltd.
E-Mail: jasmin@zwspring.com | WhatsApp: 8615799487210
CONTACT US
Tel: 86-157-9948-7210
WhatsApp: 8615799487210
E-Mail: jasmin@zwspring.com
Address: East of Chaihudian Town, Ningjin County, Dezhou City, Shandong Province, within the industrial park
Precisely Customized Extension Spring
Keywords:
Extension Springs
Extension Springs: Engineered for Reliable Tension and Precision Return
Product Overview
An Extension Spring is a tightly wound helical spring designed to operate under tensile loads, storing energy when pulled and returning to its original length when the force is released. Its coils are typically wound to be in close contact at rest, often with built-in initial tension to ensure immediate resistance to stretching. Extension springs deliver consistent, linear force and are ideal for applications requiring controlled pulling, counterbalancing, or automatic retraction.
Key Features & Benefits
High Initial Tension – Provides immediate resistance to extension, ensuring precise activation and stability.
Custom End Configurations – Available with machine hooks, cross-center loops, threaded inserts, or custom designs for secure and adaptable mounting.
Wide Material Selection – Manufactured from high-carbon steel, stainless steel (302/316), oil-tempered wire, or specialty alloys to meet corrosion resistance, temperature, and fatigue life requirements.
Precision Engineering – Each spring is calculated and coiled to deliver exact load-deflection characteristics, supporting consistent performance in dynamic applications.
Versatile Applications – Used across industries from automotive and aerospace to medical devices and consumer products.
Common Applications
Automotive: Throttle return mechanisms, brake pedal systems, seat recliners.
Industrial: Conveyor belt tensioners, safety guards, tool balancers.
Consumer Products: Garage doors, trampolines, retractable pens, fitness equipment.
Medical & Aerospace: Motion control in diagnostic devices, panel retraction systems.
Why Choose Our Extension Springs?
Our springs are manufactured using advanced coiling technology and rigorous quality controls, including stress-relieving treatments and 100% load testing. We offer complete customization—from prototype to high-volume production—ensuring your springs meet exact specifications for performance, durability, and environmental compatibility.
Specifications & Customization
Wire Diameter: 0.5mm – 20mm
Outer Diameter: 2mm – 200mm
Free Length: 10mm – 1000mm
Material Options: Music wire, stainless steel, Inconel, phosphor bronze, etc.
End Types:
Product Inquiry
Please fill in your contact information and your needs, and we will arrange a professional to contact you!
Zhuowang Machinery Equipment
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Tel：86-157-9948-7210
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WhatsApp：8615799487210
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E-Mail: jasmin@zwspring.com
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Address：East of Chaihudian Town, Ningjin County, Dezhou City, Shandong Province, within the industrial park
