Extension Spring Bosswinn Zinc Plating Chairs Furnitures High Quality Steel Extension Spring

• Customization: Available
• Function: Drive, Restoration, Measurement
• Material: Steel
• Load Type: Compression
• Production Process: Cold Roll
• Shape: Cylinder
• Transport Package: Carton Pallet
• Specification: 100 x110x120
• Trademark: Bosswinn
• Origin: China
• Production Capacity: 2000000
• Package Size: 110.00cm * 110.00cm * 120.00cm
• Package Gross Weight: 1500.000kg
• Lead Time: 10 days (1 - 100000 Pieces) ; To be negotiated ( > 100000 Pieces)

Product Description

Why work with Bosswin?
19 years of experiences in the metail springs business.
The most developed facilities gurantee  good quality and very high production capacity.
We can develop necessary toolings and produce any springs as per buyer's requests 



    

Product Description

 

raw materials we    process on	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 speak.



Our packing and delivery

The applications of the tension springs

 

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

The Industries that Use tension Springs

Major original equipment manufacturers (OEMs) that produce products for various industries use compression springs in many of their products. 

• Industrial production lines
• Transportation vechiles
• Construction facilities
• Materials handling
• Agriculture machines
• Petrochemical
• Aeronautical 

FAQ

1.Is Bosswinn a  manufacturer ?

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,