Swivel Bolt 7MM Conical Extension Springs For Farm Agricultural Machinery

Swivel Bolt 7MM Conical Extension Springs For Farm Agricultural Machinery

Specifications:

Description:

Our extension springs are available with different end configurations to facilitate the attachment to components being acted upon. End configurations that we offer include full loop,machine hook,coned end with swivel hook or bolt,crossover hook and custom shaped hook.

Using CNC spring coiling machines, we can produce custom extension springs with wire diameters from 0.08mm to 35mm in the way of cold wounding and hot wounding.

Our tech dep can design springs to have initial tensions according to the load requirement of your applications. We will also validate spring designs before manufacturing, and secondary processes such as color-coding, plating, peen shooting and heat-treating are must for extension springs to make sure high quality.

Applications:

Applications for extension springs include automotive interiors and exteriors, garage door assemblies, appliances,furniture,engineer machines,washing devices, motor,farm agricultural machinery as well as thousands of other uses. XULONG’s extension springs come in a wide array of sizes, from small medical devices to off-road machinery brake springs and marine container.

FAQ of extension springs:

Q) How does stress relieving or heat treating affect extension springs?
A) It can reduce the spring's initial tension, change the hook's position, or create a change in the spring's diameter.

Q) What are three things you can do to maximize the life of an extension spring?
A) The path of the wire should be smooth and gradual as it flows into the end; marks and other stress concentrations should be held to a minimum; and a minimum bend radius of 1 1/2 times the wire diameter is recommended.

Q) What needs to happen for an extension spring to have no initial tension?
A) The Extension Spring needs to be designed with space between the coils.

Foshan Nanhai Xulong Spring Factory, formerly Shannan Hongtao Spring Factory, founded in 1979, after more than 30 years of diligent hard working, Xulong has developed into the leading enterprise of spring industry in China.

Xulong is a privite owned enterprise, located in Nanhai district,Foshan city with well equipped facilities and convenient traffic, own staff about 200(32 technicism and QC included), can produce various of round wire springs whose wire diameter arrange 0.08mm to 60mm and rectangle wire spring and stamping whose thickness arrange 0.15mm to 25mm, the products cover most of the manufacturing fields,through the joint effort of all the staff of Xulong, it got the the certification of ISO and become the supplier of lots of famous company such as HONDA and GREE these years, the turnover of Xulong maintain RMB 70 million,and the products are sold to domestic market and abord market such as Europe. America and middle east and setted Xulong's high reputation with the great quality and perfect service, also established a long term cooperation relationship with our customers.

XULONG facous on manufacturing of springs,the products cover a wide range include compression spring, extension spring, torsion spring, spring clip, wave spring,spiral spring, die spring,wire form and various of metal stamping which used in the fields of auto, motorcycle, furniture, elevator, mine machine and so on.

Raw material: alloy steel, carbon steel, stainless steel, tin bronze, phosphor bronze and other grades of steel springs, also we can order materials according to customer's requirement.
Size of material: round wire:0.08-60mm
Rectangle wire:1*1-25*25mm
Steel sheet:0.1-25mm

Manufacturing equipments:
18 sets of CNC universal automatic spring coiling machines which can product all kinds of springs whose wire diameter arrange from 0.1mm to 5.0mm.
20 sets of CNC universal automatic compression spring machines which can product springs whose wire diameter arrange from 0.08mm to 20.0mm.
1 hot wound spring production line which can produce springs whose wire diameter arrange 18mm to 60mm.
35 sets of punching machines, 10 sets of heat treatment furnaces, 4 sets of shot-blasting machines, 10 sets of CNC griding machines and so on.

Inspecting equipments: spring tension and compression testing machine of all sizes, small spring fatigue test machinery, big spring fatigue test machinery,projector, microscopic hardness meter, Metallographic analyzer and so on.

Product design: we can design and develop advanced products according to customer's require and their product's over-whole character to try its using and quality, also, all our staff will try our best to solve the problems in time during the using.

We will continue striving to provide customers with high quality products and services, to achieve a win-win goal!