China Factory For Door Extension Spring - Manufacturer Oil Tempered Mini Warehouse Springs With Hooks – Wangxia

Product Detail

Material: Steel
Inside diameter :1 3/4’, 2’, 2 5/8’, 3 3/4’, 5 1/4’, 6’
Length : Welcome to custom all kind of length
Product type:Torsion spring with hooks
Coated: Oiled Tempered
Assembly service life : 18,000 cycles
Manufacturer warranty: 3 years
Package: Wooden case

Application

· High-lift and vertical-lift doors
· Roll-out garage doors on tracks
· Heavy-duty overhead doors at industrial loading docks
· Hinged garage doors
· Most other styles of residential and commercial automatic and manual garage doors

Torsion spring counterbalance the weight of your shutter door to ensure easy lifting.

Technical Data

We specialized in manufactured our replacement Mini Warehouse Springs using a Class 11 oil tempered wire with a heat treated coating to resist rust. Each month we exported Self Storage Door Torsion Springs & Mini Warehouse Garage Door Springs to USA, Canada, UK and Australia.
In particular, torsion springs counterbalance the Roll Up Door’s weight and make it easy to open and close.

Standard Features

(1) High tensile
(2) Oil tempered
(3) Corrosion resistant
(4) Long cycle life
(5) Meet ASTM A229 Standard

Determine What Size Roll-up Door Springs You Need

It is very important that you order the proper Self Storage Door Springs or Mini Warehouse Door Springs for your Roll Up Door. You will need to make several important measurements that must be accurate. If you are not careful when you make these measurements, your roll-up door may not work as it did before.

To measure Roll Up Door Springs, follow each of the following four steps carefully.
(1) Measure Spring Wire Size
(2) Measure Spring Inside Diameter
(3) Measure Spring Length
(4) Determin Wind of Torsion Spring (Left Wound or Right Wound)

WARNING

Torsion springs and related door hardware can cause serious injury or death if not handled and installed properly. Professional installation is recommended.

DO NOT attempt to install springs or hardware yourself unless you have the proper tools, reasonable mechanical aptitude and experience, and upper arm strength. Read and understand all instructions before you begin work.