Heavy Duty Vertical Lifting Garage Door Extension Spring& Torsion Springs /Coil Spring Manufacturer

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
We produce incomparable industrial electrical switchgear, compact transformer substation, spring steel wire with our advanced manufacturing technology, high-precision production equipment, and strict testing methods. Wanting on the long run, a protracted way to go, continually striving to become the all team with full enthusiasm, one hundred times the confidence and put our company created a beautiful environment, advanced merchandise, good quality first-class modern business and get the job done hard! We uphold the core value of 'customer service as the center' with a group of highly enterprising professional and technical personnel, and implement modern scientific management in an all-round way to continuously enhance the comprehensive capabilities of the company. Our company has set up a professional team integrating product development, sales and after-sales service in order to provide high quality products and comprehensive services to customers. We firmly believe the business philosophy of 'science and technology is the primary productive force'.

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.

Our mission will be to become an innovative supplier of high-tech digital and communication devices by furnishing benefit added structure, world-class manufacturing, and service capabilities for Heavy Duty Vertical Lifting Garage Door Extension Spring& Torsion Springs /Coil Spring Manufacturer. With the modern management model, stable quality, strong technical force, reasonable price, high-quality service, and the care and support of new and old customers, our company has brought our business to a new level. We sincerely welcome overseas buyers to consult for that long-term cooperation as well as the mutual progress.
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