Overview
Tension Springs/Extension Springs are helical wound coils, wrapped tightly together to create tension. Extension springs are springs which absorb and store energy by offering resistance to a pulling force. Extension springs usually have hooks, loops, or end coils that are pulled out and formed from each end of the body. The function of an extension spring is to provide extended force when the spring is pulled apart from its original length.
Wire Range
Material
The most common material types for extension springs are music wire, hard drawn, stainless steel (type 302 and type 316), oil tempered, chrome silicon, and phosphor bronze.
Finish
Tension Springs are available in Nickel, Yellow and White Zinc Plating, Black Oxidizing, Lacquering, Green Passivation and Trivalent Passivation. Stainless Steel Springs are available with Bright Finish.
Manufacturing Process
Tension Springs are manufactured on imported CNC Spring Coiling Machines with SPC on line with free length sorting device for critical load value.
Testing & Certification Process
Each spring manufactured goes through a series of rigorous tests conducted on in house testing facilities such as Computerized Load Testing, UTS Testing, Torsion testing, Profile Projector amongst others. All springs are supplied with ROHS raw material compliant report. We also provide PPAP documents for automobiles and electrical industries as per requirement. Springs are also tested for its lifecycles on special fatigue testing for specific requirements.
PRODUCT APPLICATIONS
Automotive interiors and exteriors, Garage Door Assembles, Vise-Grip Pliers, Carburettors, Trampolines, Farm Machinery, Relays, Switches, Switchgears, Rotary Switch, Window & Car Curtains, Photocopy & Printing Machine, Stapler Pin Machines, Washing Machine, Hardware Locks & Handles, Textile Machinery, Looms, Toys & any type of spring tensioning device.
