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||0.25 mm|
|Outside of diameter||4.15 mm|
|Inside of diameter||3.65 mm|
|Mean coil diameter||3.65 mm|
|Active coil number||100|
|Total number of coils(Nt)||100|
|Free length(F.L.)||26 mm|
|Left hand screw||ok|
|Closed and ground||ok|
|High-temperature heat treatment||ok|
Good elasticity plastic extension spring
Features of plastic compression key springs
Torsion spring is designated working in the mandrel. There are two directions of turnings---right and left, which side to choose depend on the carrying applied load. We can specially design a kind of elastic arm to meet the installment requirement.
Detailed Information About plastic torsion springs
Carbon steel, alloy steel, stainless steel, spring steel and bronze or as you request
The overall length of a spring in the unloaded position
The total number of coils including the active coils, the top and bottom ends
The coils which are free to deflect under a force.
Load type /Load
Torsion /Our computer program can assist you on the load design
Type of ends
Straight/short hook/double torsion/hinge/straight torsion/special
Direction of coils
Nickel / Zinc / Gold / Silver / Tin / Chromium / Yellow Zinc / Oxide black or Customizable etc.
Advanced CNC computer spring machines with high precision and efficiency, high quality heat treatment and testing machine
Experienced engineers and technicians; Skilled Workers
High-quality raw material, strict and careful inspection
ISO9001:2008 ,ISO14001and ROHs
High and durable quality(long service life, good hardness and resistance), suitable price, fast delivery.
All kinds of cars, machinery, home appliance, electronic products, electric appliance, stationery, computers, power switches, miniature switches, architecture, commodity and A/V equipment, hardware and plastic molds, sports equipment and gifts, and more
Inner plastic bag, outer carton box, and advised by customer.
As a YWX Hardware Spring customer, you are the company’s primary consideration. YWX makes the best productions, by hand, to order, for you.
If for any reason you are not satisfied with your YWX productions, please contact us immediately.
YWX Hardware spring customer services team is dedicated to answering any concerns you may have, not just on delivery but for the lifetime of your productions.