High Quality Extension Coil Springs China Suppliers
What is tension spring?
The extension spring is a helical spring that bears axial tension. The hook forms include side hook extension spring, long hook extension spring, British hook extension spring, German hook extension spring, semicircular hook extension spring, duckbill hook extension spring, etc. , “Hook” is used to ensure the source of tension of the tension spring. It is generally made of spring steel with a round cross section. When it is not under load, the coils of the tension spring are generally tight and there is no gap. The resilience (tension) work after extension is used to control the movement of parts, store energy, measure the size of the force, etc. Most extension springs are usually under a certain degree of tension, even there is no load. This initial tension determines how tightly the tension spring is coiled without any load.
Tension spring is a helical spring that bears axial tension. [Extension springs are generally made of round cross-section materials. When not under load, the coils of the tension spring are generally tight and there is no gap.
Tension springs Applications
Tension springs, also called spiral tension springs, are generally of equal pitch and mostly circular in cross section. They can be used in many occasions, such as production assembly, experimentation, research and development, maintenance, etc. Tension springs occupy an important position in the global market. Widely used in national defense, marine, railways, nuclear power, wind power, thermal power, computer, electronics, automobiles, molds, medicine, biochemistry, aerospace, construction machinery, mining machinery, construction machinery, elevators and other fields.
What kind of tension springs we do?
Truck brake springs,, trampoline springs, small stainless steel tension springs, toy tension spring, adjustable tension spring,furniture tension spring, long hooks tension spring, bike tension spring, garage door tension spring, tool extension spring, conical extension springs, precise extension springs, carbon steel extension spring, large extension spring, double hook tension spring, mahjong tension spring.
|MATERIAL:||Stainless steel, Carbon steel(SWC), Alloy steel SEA9260/9254/6150/SUP9/SUP10/SUP12, 50CrV4, 60Si2Mn, 55Crsi,
Music wire/piano wire(SWP), Beryllium copper etc.
|FINISH:||Zinc, Chrome, Nickel, Silver, Gold, Tin, Powder coating, Oxide black or customzied|
|PROCESSING:||Material purchased-Producing-First Testing-Coiling-Inspection-Heat Treatment-Cleaning
-Surface Treatment-Final Testing-Packing-Shipping
|APPLICATION:||Industrial/Auto/Motorcycle/Electronics/Electric Power/Toys/Sports/Machinery Equipment etc.|
|QUALITY CERTIFICATION:||ISO9001:2000, ISO14001, SGS|
|PAYMENT TERM:||T/T, L/C, Paypal, Western Union, cash|
|EQUIPMENT:||Advanced CNC spring machines with high precision and efficiency, advanced heat treatment and
testing machine equipment
|PACKING:||Inner packing with plastic bags, export carton for outer packing, wooden or plastic pallets for request|
|SHIPMENT||By sea/air/DHL/TNT/UPS/Fedex etc|