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Construction Overhead Garage Door Springs 90MM Outside Diameter HRC 38-40 Hardness

Categories Garage Door Spring
Brand Name: Xulong spring
Model Number: XL-1203
Certification: ISO 9001:2008 TS 16949,ROHS
Place of Origin: Guangdong,China
MOQ: 1pc
Price: negotiation
Payment Terms: T/T , Western Union,Paypal
Supply Ability: 10 000pcs per month
Delivery Time: Up to quantity
Packaging Details: carton
Product Name: garage door spring
Material: spring steel
wire diameter: 6.5mm
outside diameter: 90mm
surface treatment: oiled
application: garage door
total coils: 70C
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    Construction Overhead Garage Door Springs 90MM Outside Diameter HRC 38-40 Hardness

    Construction Overhead Garage Door Springs 90MM Outside Diameter HRC 38-40 Hardness


    Specifications:


    MaterialSpring steel
    Wire diameter6.5mm
    Outside diameter90mm
    Total coils70
    Active coils70
    DirectionRight/left
    HardnessHRC 38-40
    Surface treatmentoiled
    Load typetorsion
    Stylecylinder
    Usageoverhead garage door,construction


    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.


    6.5*90*70 customized overhead garage door springs with good price

    xulong spring supply overhead garage door springs with good price

    xulong spring manufacture overhead garage door springs as per customer's drawing or sample


    Applications:


    The torsion springs on steel rolling doors work the same way as other torsion springs in the garage door industry. When the door is closed, the spring is wound. The spring is secured to a spring anchor bracket on one end and to the shaft on the other. When the steel rolling door opens, the spring in the barrel supports most of the door weight. The remainder of this weight is lifted by the chain hoist or the operator.


    applications of our torsion springs:

    1. Residential sectional garage doors
    2. Commerial sectional overhead doors
    3. Industry shutter doors
    4. One-piece curtain doors
    5. mini-warehouse doors
    6. Self-storage doors
    7. Roll-up doors

    How to order your garage door springs

    For quotation,we need info of your torsion spring as follow:

    1. Inside diameter
    2. Wire size
    3. Length
    4. Type of spring ends
    5. Gapped or ungapped

    And before production,we will make drawing to let you confirm.


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