China Industrial Sectional Door Fittings Garage Door Spring

Torsion spring for sectional garage door

Fixed size torsion spring

Assembled with spring fittings.

The quality is good,

Smooth work to lift the garage door panel

For residential and commercial hinge applications

Provides embossing for increased strength

Various hinge bracket hole combinations

specificationmaterialHigh carbon steel: 77B / 82B / zinc spring steel / SS spring steelWire diameter5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, 10.5mm, 11mm 11.5mmsurfaceOiling / tempering / black coating / corrosion resistance / zincSuitable forRolling shutter door / garage door / roller shutter door / industri

Function:

It is used for the top end of the spring, connecting the spring and the solid shaft, and has a torsion spring adjusting hole to facilitate the spring to increase the torque.
Spring end fixing flange:
Material: cast aluminum, light weight, high toughness, good strength, rust and corrosion resistance.
At the end of the spring, the spring is attached to the shaft bracket. When the top end of the spring increases the torsion force, the tail end acts as a support point to support the reaction force of the torsion.

Anhui Wantai Door Industry Technology Co., Ltd. was founded in 1999. It is a professional manufacturer of rolling shutter accessories. It was mainly engaged in the production of rolling shutter fittings. After 5 years of unremitting efforts, it has developed into a design, development, production and sales. A comprehensive enterprise integrating installation and service, the company is located at No. 260 Fengkang Road, Huai Shang District, bengbu City, Anhui Province.

Anhui wantai Door Industry Technology Co., Ltd. establishes various management systems with quality as the core, vigorously promotes scientific quality management methods, establishes and improves quality management system, and continuously improves user satisfaction as the eternal quality pursuit of enterprises. Since the product was put into the market, it has been favored and praised by the users with its high-end quality and exquisite craftsmanship. Products include automatic doors, industrial doors, quick doors, sliding doors, rolling doors, security doors, fire doors, flexible lifting doors, industrial fans, medical doors, logistics cold chain doors, gates, parking systems, transportation facilities, doors and windows and Technical research and development, technical consultation, production, installation and sales of accessories; decoration and decoration engineering; installation of steel components, aluminum components, aluminum materials, hardware, intelligent management equipment, parking locks, etc., can meet different places and different The requirements of the grade, the plant area of 3,000 square meters, the establishment of the construction of the door automatic line, automatic pipe line, cold bending, metal processing lines.

Since the company's products have been invested, they have obtained the "ISO9001 Quality Management System Certification" issued by the British Standard Management System Certification Center, and the "AAA Grade Enterprise Credit Rating Certificate" issued by the 315 National Collection System Credit Enterprise Certification. ".

1.what's the delivery time?
for normal orders, only 15 day2.po you provide OEM service?
yes, we do provide OEM service3.how about the package ?
plywood case of cardboard ,accordingly to your choose4.what's the MOQ?
we accepte 1 set as trail order