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ODM Custom Shock Absorber Spring Factory - Double Hook Wire Coil extension Tension Springs – DVT Spring Detail:
Basic Information
Mechanical extension springs are designed specifically for a height and weight of a product. The initial tension is the force that holds the coil together and must be exceeded to get the extension spring working. Although the standard initial tension is appropriate for most extension spring needs, initial tension can be customized for specific situations.
Extension springs are commonly used in automotive mechanisms, garage doors, trampolines, washing machines, tools, toys, and equipment in a wide array of industries. Extension spring ends are designed to meet specific application needs. Configurations include hooks, threaded inserts, extended twist loops, crossover center loops, expanded eyes, reduced eyes, rectangular ends and teardrop-shaped ends. Another extension spring configuration features a drawbar spring. In this design, the load at the ends of long, steel loops that pass through the spring center and compress the spring upon loading.


Extension Spring Parameters
- Outer diameter- of the spring
- Wire diameter – of the wire used to create the spring
- Overall length – of the spring in the unloaded position
- Rate – amount of weight required to deflect the spring one inch
- Load -amount of weight the spring can carry when deflected to a given height

Specifications
|
Item
|
Double Hook Wire Coil extension Tension Springs |
|
Material
|
SS302(AISI302)/ SS304(AISI304)/ SS316(AISI316)/SS301(AISI301) |
| SS631/65Mn(AISI1066)/60Si2Mn(HD2600)/55CrSiA(HD1550)/ |
| Music wire/C17200/C64200, Etc |
|
Wire diameter
|
0.1~20 mm |
|
I.D
|
>=0.1 mm |
|
O.D
|
>=0.5 mm |
|
Free length
|
>=0.5 mm |
|
Total Coils
|
>=3 |
|
Active coils
|
>=1 |
|
End hooks
|
U shape, round shape etc. |
|
Finish
|
Zinc plating, Nickel plating, Anodic oxidation,Black oxided,Electrophoresis |
| Power coating, Gold plating, Silver plating, Tin plating, Paint,Chorme, Phosphate |
| Dacromet,Oil coating, Copper plating, Sand blasting, Passivation, Polishing,Etc |
|
Sample
|
3-7 work days |
|
Delivery
|
7-15days |
|
Appliction
|
Auto,Micro,Hardware,Furniture,Bicycle,Industrial,ect. |
|
Size
|
Customized |
|
Warranty period
|
Three years |
|
Payment Terms
|
T/T,D/A,D/P,L/C,MoneyGram,Paypal payments. |
|
Package
|
1.PE bag inside, carton outside/Pallet. |
| 2.Other packages: Wooden box, individual packaging, tray packaging,tape & reel packaging etc. |
| 3.Per our customer’s need. |
Product detail pictures:
Related Product Guide:
We insist on offering good quality generation with very good business enterprise concept, honest income as well as best and fast assistance. it will bring you not only the premium quality product or service and huge profit, but probably the most significant is usually to occupy the endless market for ODM Custom Shock Absorber Spring Factory - Double Hook Wire Coil extension Tension Springs – DVT Spring , The product will supply to all over the world, such as: Korea, United Arab emirates, Namibia, As a way to use the resource on the expanding info in international trade, we welcome prospects from everywhere on the web and offline. In spite on the high quality items we offer, effective and satisfying consultation service is supplied by our qualified after-sale service group. Item lists and detailed parameters and any other info weil be sent to you timely for the inquiries. So please make contact with us by sending us emails or call us when you've got any questions about our organization. ou could also get our address information from our site and come to our enterprise. We get a field survey of our merchandise. We are confident that we'll share mutual accomplishment and create solid co-operation relations with our companions within this market place. We're seeking forward for your inquiries.