Springs
Your Professional Springs Supplier
Zhejiang Hangjia Special Spring Co., Ltd. was founded in November 2005. Our company is located at No. 397, Ziling Road, Fuchunjiang Town, Tonglu County, Hangzhou City. The company brand is "Hangjia Spring". Our company is a professional enterprise specializing in the production and manufacture of springs used in various fields such as construction machinery, automotive suspensions, chemical industry, power, elevators, hydraulic supports, valves, etc.
Why Choose Us
Advanced Equipment
We have various types of advanced testing equipment (10-5000N electronic dual digital display tension and compression testing machines, electronic spring torsion testing machines, spring high-frequency fatigue testing machines, etc.) to ensure the precision and stability of spring quality.
Technical Team
Our technical team, having over 30 years of professional experience,provide spring solutions to several listed enterprises,aerospace,and military industries to help customers enhance their core competitiveness.
Certification
We has been certified with ISO 9001:2008, ISO 14001:2015 for environmental management,and has been recognized as a high-tech enterprise.
Quality Control
And we have special testing equipment to check the quality before shipment. We guarantee the quality suitable for customers’request and support each step of exporting.
Springs Specifications
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Product name |
Springs |
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Wire diameter or thickness |
0.2~85mm，Drawing or sample |
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Grade |
4.8, 6.8, 8.8, 10.9, 12.9, A2-70, A4-80 |
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Material |
Carbon steel(SWC),Alloy steel SEA9260/9254/6150/SUP9/SUP10/SUP12,51CrV4,stainless steel,Music wire/piano wire(SWP);beryllium copper etc. |
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Surface treatment |
Zn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Polish,Electro Painting,Black Anodize,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) etc. |
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Certification |
IATF 16949, ISO 14001, ISO9001,ROHS |
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Application |
Industrial/auto/Motorcycle/electronics/electric power/Toys/Sports goods/Machinery equipment etc. |
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Packing |
Inner packing with plastic bags,and then carton boxes for outer packing,at last wooden or plastic pallets for request |
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Key Features
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Improved Handling
Their flexibility allows for better weight distribution and cornering performance, enhancing stability and handling, especially during high-speed maneuvers.
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Lightweight Design
Coil springs are generally lighter than leaf springs, which can contribute to better fuel efficiency and overall vehicle performance.
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Precise Tuning
Coil springs can be precisely tuned to achieve a desired spring rate, optimizing ride comfort and handling characteristics for various driving conditions.
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Versatility
Coil springs can be used in a variety of vehicle types and suspension designs.
Types of Springss Available
Compression Springs
Designed to resist compressive forces, they shorten when loaded. Examples include those found in mattresses, automotive suspensions, and valves.
Extension Springs
Designed to elongate when loaded, they have hooks or loops for attachment. Examples include garage doors, luggage scales, and trampolines.
Torsion Springs
Designed to operate with a twisting force, they are used in hinges, clothespins, and door systems.
Leaf Springs
Also known as laminated springs, they are typically made of flat metal strips stacked together, used in vehicle suspension systems.
Applications
Automotive
Springs are crucial in vehicle suspension systems, providing a comfortable ride by absorbing shocks and vibrations from the road.
Industrial
Springs are used in various machines and tools, including conveyor systems, assembly machines, and industrial robots.
Everyday Items
From mattresses and sofas to pens and door hinges, springs are integrated into many household items, providing comfort, functionality, and structural support.
Electronics
Springs are found in electronic devices like cell phones (battery contacts, push buttons), appliances (washing machines, refrigerators), and light switches.
Packaging & Shipping
Retail Packing
We offer individual opp bag, header card, plastic hook etc, for the retail packing.
Customized Packing
We also offer customized packing service, with your logo or brand printed on your label.
Export Packing
We use export carton with marks for the protection of the long way shipping.
Our Certifications
FAQ