Factory Customized Coil Heavy Duty Extension Spring with Double Hook

1.Sophisticated equipment.
2.Technology is very advanced.
3.Excellent technical team.
4.High quality products but competitive price.
5.Free samples, low MOQ, factory direct sale.
6.Prompt reply. In time delivery.
7.Can be customed.

Product Details
With high-quality products, reasonable prices and perfect services, our company has an excellent reputation and a large market share in the power distribution box, garage door extension springs, Prefabricated substation industry. Based on our unique expertise and product quality, we have gained an unparalleled reputation for reliability in our long history. We can supply custom service too such as Logo, custom size, or custom merchandise, etc that can according to customer's requirement. Safety as a result of innovation is our promise to each other. We warmly welcome friends from all walks of life to cooperate with us.

Product introduction:

Tension spring is a kind of spiral spring which is usually made of the circular cross-section to withstand axial tension.  It is tight between the circle and circle of the spring with no clearance when it’s under no load. A number of different terminal devices or "hook" are used to ensure tension of extension springs.

Product design:

The design of tension spring depends on spring material, material diameter, outside diameter, length, number of turns, the location and shape of earring, load and the corresponding value.

Product specfications:

Spring wire diameter range from 0.1 to 8.0 mm.

Product classification:

Stainless steel extension spring; Precision extension spring; Galvanized extension spring; Double-hook extension spring; Movable hook extension spring; Large diameter extension spring; High quality extension spring; Nickel plated extension spring; Fitness extension spring; Metal extension spring; Carbon steel tensile spring; Heavy duty extension springs; Garage door extension springs; Expansion spring; High elastic tension spring; Big tension spring; Small tension spring; Custom tension spring; and so on.

Product process:

Product Process

Product inspection:

Inspection Equipment

Application:

They can be used in many occasions, such as production assembly, experiment, research, maintenance and so on. Tension spring occupies an important position in the global market, widely used in national defense, Marine, computer, electronic, automotive, mold, medical, biological, chemical, aerospace, railway, nuclear power, wind power, thermal power, engineering machinery, mining machinery, construction machinery, elevator, etc.


XD HI-TECH, established in 2007 is one of the excellent manufacturers in China. Come and find china designed stainless steel heavy duty garage door extension spring manufacturer from our factory. With high precision, and good performance, our custom products have a wide application field. Welcome to wholesale our quality products and the PDF display is also offered.

We take the market as the center, strive for survival by quality, innovate continuously and serve attentively. We have a high reputation in the field of Factory Customized Coil Heavy Duty Extension Spring with Double Hook. With our superb technology and high-quality service, we are favored by large customers at home and abroad, and have won wide acclaim from all walks of life. While in the past few years, our organization absorbed and digested innovative technologies both equally at home and abroad.
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