Each production stage of YUAN SINE SPRING long extension springs is strictly conducted by advanced machines including CNC lathes, milling machines, grinding machine, cutting machines, and bending machines. 2.
This product is treated to be skin-friendly. The nearly invisible microfibers, which contain some synthetic chemicals, are considered harmless. 3.
This product causes only a small amount of noise pollution. It uses a fundamental method to control noise - eliminating friction as much as possible. 4.
No burrs or sharp corners. This product has delicate workmanship and has no quality problem. - One of our customers said.
Tension spring is a helical spring subjected to axial tension. There are different kinds of hooks. English hook, German hook, long hook, semicircle hook, duck bead hook and so on. The “hook” is used to guarantee the source of tension of stretching spring. The gap for the ring and the ring must be tight and exact. These points must be identified. It is used to control the movement of machine parts , store energy, measure the size of the force and so on. Some of tension spring are made for precondition for safety. That’s what we value and strict on quality control. We must give more consideration to service this.
|Stainless steel||stainless steel|
|Wire diameter||0.3 mm|
|Outside of diameter||4.4 mm|
|Inside of diameter||4.4 mm|
|Mean coil diameter||4.4 mm|
|Active coil number||55|
|Total number of coils(Nt)||55|
|Free length(F.L.)||25 mm|
|Right hand screw||ok|
|Closed and ground ||ok|
|High-temperature heat treatment||ok|
2-ways tension spring for communcation router
YUAN SINE SPRING ENTERPRISE CO., LTD has taken an important position in the industry. We stand out for strong capacity for manufacturing long extension springs . 2.
YUAN SINE SPRING ENTERPRISE CO., LTD has skilled mechanical personnel and experienced management personnel. 3.
We are always looking towards the future, introducing new product concepts that anticipate business, industry and consumer needs following the dictum – 'The ability to dream, The will to do.' Check now! We always provide better service for every customer with helical extension spring . Check now! We provide all kinds of excellent industrial extension springs , which can meet the needs of almost all users. Check now! We will continue to improve the quality of our products and services to increase our customers' satisfaction and maintain our position as the world’s leading manufacturer of high-quality products. Check now!