Each and every YUAN SINE SPRING industrial extension springs that leaves our factory has undergone and passed stringent strength testing in terms of strip tensile, tear, and seam strength. 2.
Reliability: Quality inspection is throughout the whole production, removing all defects effectively and greatly ensuring the consistent quality of the product. 3.
The product will benefit customers by offering great practical functionality no matter in commercial, industries, or household use. 4.
People will find that the product will stay beautiful luster for years to come, with little or no maintenance.
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
As a famous brand, YUAN SINE SPRING concentrates on manufacturing small extension springs . 2.
Equipped with professional technician, YUAN SINE SPRING ENTERPRISE CO., LTD aims to produce high quality stainless steel extension springs . 3.
All our sales are very professional and experienced in market of extension springs to answer all questions from customers. Call! With intense sense of responsibility, YUAN SINE SPRING strives every effort to provide the best for customers. Call!