springs made in China,springs manufacturer, customized springs

Torsion springs are a type of coil or helical spring used to apply a torque or store rotational energy and subsequently releases it. The two most common types are single and double torsion springs.Torsion spring applications:clothespins,window shades,counterbalance mechanisms,ratchets,hinges and various other machine components and so on.

1 Wire diameter: 0.08mm-7mm

2 Technical norms:  we produce springs according to customer’s
requirements including spring drawings or qualified samples.

3 Surface treatment:  blackening, zinc plated, nickel plated, gold
plated, silver plated, electrophoresis, Dacromet and so on.

4 Materials:

1>  Stainless steel: SUS301,SUS302,SUS303,SUS 304,SUS305,SUS 309,SUS310,SUS 316,SUS321,SUS 403,SUS410,SUS 420,SUS430,SUS630,SUS631

2> Carbon steel(SWC): 60SizMNA,60SizCRVA,55CrSi and so on.

3>   Music wire:SWPA,SWPB

4>   Copper wire:phosphorus Cooper wire,tinned wire,nickel-coated copper wire,bronze,Becu  and so on.

5>  resistance wire

5 Delivery date: 5-7 days (transportation time is not included). For the urgent orders, we have our urgent procedure to make sure deliver our goods ASAP.

6 Samples making:  The sample fee is required but it will be returned in full if we cannot meet the customers’ requirements. After a certain amount of order, the samples fee may offset the payment of the goods.