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Custom Roller Shutter Door Helical Spring , Strong Rolling Push Shutter Spring

Categories Roller Door Spring
Brand Name: bluesteel
Certification: SGS,CE
Place of Origin: China
MOQ: 25T
Price: $1-5$
Payment Terms: T/T
Supply Ability: 500T/per month
Delivery Time: 30days
Packaging Details: with plastic bag.
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    Custom Roller Shutter Door Helical Spring , Strong Rolling Push Shutter Spring


    Custom Roller Shutter Door Helical Spring , Strong Rolling Push Shutter Spring


    Description:


    garage door springs counterbalance the weight of the door to make it easy to open and close. They serve the same purpose of counter weights used to balance doors in centuries past and in many doors today.


    the length of garge door springs,exactly speaking,the number of coils is one of the main factors to determine the spring rate of garage door torsion spring,or the torque of torsion spring in other words,so we add a process to adjust number of coils specially with cutting by punch and make sure each spring have the same coils with drawing.


    when torsion springs are wound, they grow in length. Since both ends of the torsion springs on steel rolling doors are secured and cannot move, the spring cannot grow in length. There are two options for fixing this problem. You can stretch the spring yourself with a come-a-long before you secure it to the shaft, or your can purchase pre-stretched springs. This allows the coils to be gapped and to lose most of this gapping when the door closes.


    Details:


    • Torsion spring material: Carbon steel & Stainless steel&sSpring steel

    Torsion spring wire dia:0.1-8mm

    Torsion spring size: all size/AS you required

    Torsion spring surface Finish: zinc plated (trivalent chromium or sexivalent chromium), nickel plated,oxidation plated, plain finish , Black Oxide and so on

    Torsion spring plating: BlackOxided, Zinc,Chrome, Galvanized, Nickel,Dacromet, Delta-Tone, Geomet,Ruspert

    Torsion spring packing: as you required

    Torsion spring sample lead time: within 7—10 days

    We also could produce according to buyer's drawing or samples/Non standardcompression springs.


    Product NameManufacturer custom garage door pull roller shutter torsion spring lowes for industrial
    SampleFree to send you If have stock
    PackingInner---PE Bag; Outer -- Carton Box.
    MaterialSpring steel,65Mn,60Si2Mn ,stainless steel 201,301,304,316,603 Brass,bronze,
    SECC,SPCC,aluminum,aluminum alloy, stainless steel, nitinol,titaniumtim etc.
    Surface treatmentGalvanize,Zinc,Nickel,Chrome plating, electrophoresis,painting,CNC milling, laser engraving& laser welding, sand-blasting, polishing, hairline brushing, spraying, anodizing, diamond cutting & high bright, printing, electro-deposition etc.
    Usage
    Automatic machine, Medical device, Industrial machine, Automoblie, Electric a appliance, Pulic equipment, etc
    Quality controlAcoording to ROHS and SGS,conducted by ISO9001:2008
    EuipmentsLaser Cutting Machine/CNC Shearing Machine/Flat Bed Spot-welder/Die Grinder/Steel Processing Machine/Double Servo Turret-type Punch Press/Banding Machine/Steel Processing Machine/etc.
    Testing ListsCoordinate measuring machine,, Technical projector, Salt spray tester, HTHH test, Abrasion tester etc.


    Quality Custom Roller Shutter Door Helical Spring , Strong Rolling Push Shutter Spring for sale
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