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Tension springs are another name for extension springs. Extension springs have no pitch in between the coils . extension or tension springs are meant to be extended or pulled.
The load applied to extension springs stretches its tightly wound coils apart and spreads them open. Tension springs resist the pulling force that is placed upon them and this creates a sling back effect when the force is removed, causing it to return to its original shape. This function makes them ideal for lifting heavy objects and assisting in the lifting or dispersing of certain loads.
Depending on where the tension spring will be placed, its length, thickness, shape and hook types can vary. Tension springs usually have hooks on the ends to facilitate the function of being extended. The most common hook types are machine and cross-over hooks, but some may even have no hooks.
raw materials we | stainless steel,Music wire Carbon steel(SWC),Alloy steel SEA9260/9254/6150/SUP9/SUP10/SUP12,51CrV4,etc. |
material diameter or thickness | 0.1~8mm |
workcraft or process | CNC processing, mannual work |
surface treatment | painting, electroplating, polishing , blacken etc |
Applications | Industrial facilities.automobiles, Motorcycles, electronics, Sports facilities, telecommunications products etc |
Quality Certification | ISO9001-2000,ISO14000 |
Payment term | T/T,L/C |
Packing | plastic bags,and then cartons , wooden or plastic |
Shipment | By sea from Ningbo or shanghai, by air from Shanghai or Hangzhou |
Our testing faciltis.
We strictly control our springs quality . We do not only promise in oral, let the facilities speack
Extension springs are in our daily life everywhere, small electronics, house appliances, from being in our cars , to the farm machinery that produces our food.
1. Tampolines. The trampoline has hundreds of hook end extension springs forming the trampoline base to the metal frame.
2. Vehicles , vehicles use heavy duty extension springs because of the amount of power and strength they require to pull.
3. Small electronics, like toys.
Extension springs make the electronics to function as designed.
4. House appliances , like washing machines
Springs are likewise used in washing machines to suspend the drum in position.
5. Furnitures, doors, windows etc
extension springs to help the house doors or furnitures close back over once they have been opened.
7. Exercising facilities
The most common exercise equipment that use extension springs like the Chest Expander, and other strenght training facilik
Compression springs are undoubtedly used in our everyday lives, everyday products, machines, etc.
A: We are a manufacturer, the business owner has 2 factories producing springs, machining part, stamping parts
2. When is the delivery time?
A: 10 and 15 days , one month in the peak seasons
3. What is the MOQ?
For the initial order , any quantity ok. For the mass production order, 10000 pcs better.
4. What's your payment method?
: T/T, L/C, Western Unions,
e. How can we confirm the samples?
Free samples are offered,
