• Hi Performance Roller Door Spring , Torque Force Springs For Garage Doors
    • Hi Performance Roller Door Spring , Torque Force Springs For Garage Doors
    • Hi Performance Roller Door Spring , Torque Force Springs For Garage Doors
    • Hi Performance Roller Door Spring , Torque Force Springs For Garage Doors
  • Hi Performance Roller Door Spring , Torque Force Springs For Garage Doors

    Hi Performance Roller Door Spring , Torque Force Springs For Garage Doors

    Product Details:

    Place of Origin: China
    Brand Name: bluesteel
    Certification: SGS,CE

    Payment & Shipping Terms:

    Minimum Order Quantity: 25T
    Price: $1-5$
    Packaging Details: with plastic bag.
    Delivery Time: 30days
    Payment Terms: T/T
    Supply Ability: 500T/per month
    Get Best Price Contact Now

    Detail Information

    High Light:

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    Product Description

    Hi Performance Roller Door Spring , Torque Force Springs For Garage Doors

     

    Discription:

    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. For example, if a garage door weighs 300KG, a spring force of 300KG needs to pull against the weight of the door. This can be accomplished with springs that either stretch or torque special parts to assist in balancing the door.

     

    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.

     
    Model Roller Door Spring
    Material High-Carbon Steel
    Dimesions(mm) Ply 6.0 / 7.0 / 8.0mm OD=65mm/90mm
    MOQ 500 pc
    Product Name Manufacturer custom garage door pull roller shutter torsion spring lowes for industrial
    Sample Free to send you If have stock
     Packing Inner---PE Bag; Outer -- Carton Box.
     Material Spring steel,65Mn,60Si2Mn ,stainless steel 201,301,304,316,603 Brass,bronze,
    SECC,SPCC,aluminum,aluminum alloy, stainless steel, nitinol,titaniumtim etc.
    Surface treatment Galvanize,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 control Acoording to ROHS and SGS,conducted by ISO9001:2008
    Euipments Laser 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 Lists Coordinate measuring machine,, Technical projector, Salt spray tester, HTHH test, Abrasion tester etc.

     

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