The quality control of YUAN SINE SPRING helical extension spring is completed with the help of pieces of advanced equipment which includes coordinate measuring machines, programmable and manual optical comparators, and comprehensive hard gages. 2.
It will not fade or begin to look ratty after prolonged exposure to the sun or being washed for a certain number of times. 3.
This product is extremely waterproof, highly puncture and abrasion resistant, and will stay flexible even in the coldest temperatures. 4.
When there are options, YUAN SINE SPRING ENTERPRISE CO., LTD will thoroughly describe each available alternative for customers.
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 is an important national small tension springs backbone enterprise with many years of operating history. 2.
The combination of technology and R&D will be attributed to the development of YUAN SINE SPRING. 3.
The YUAN SINE SPRING brand's focus is on continually optimizing the services. Ask online! In order to win the helical extension spring market, YUAN SINE SPRING has been doing the utmost to serve customers with the most professional attitude. Ask online!