The formulas for determining the number of turns to wind a torsion springs is based on the drum number door height and high lift dimension which is the distance from the top of the door to the center of the horizontal track.
Garage door torsion spring turn chart.
We will use the corrispoding weight you ordered to customize the perfect spring s to balance your garage door.
If you cannot make an exact match it is better to be one or two ippt lower and.
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Dasma is a leading organization in our industry that created the guidelines and specifications for garage door springs.
Torsion springs extension springs and other garage door hardware can cause serious injury or death if not handled and installed properly.
Spring orientation only worry about this if you have a 1 s.
As with the vertical lift doors the formula for the number of turns on the springs is complex.
Garage door spring size chart.
All dura lift springs meet the dasma standard rating of 10 000 plus door open and close cycles.
Spring length how long each spring is 4.
Both the winding and stationary cones are professionally installed for safe operation.
Door weights 150lbs and under will be shipped with 1 high cycle life torsion spring.
Weighing your garage door is the best possible way to determine the proper springs needed for the door.
This system aids in proper identification for repair ordering and.
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Professional installation is recommended.
Inside diameter 90 of doors have a 2 0 inside diameter 3.
Your garage door requires a specific total ippt which can be achieved by using one or multiple springs.
Install new or use this pair of left install new or use this pair of left and right wound torsion springs to replace broken sectional garage door torsion springs.
The chart is based on information from the door access systems manufacturers association dasma.
In order to order new garage door torsion springs you will need to measure as accurately as possible your current spring s and find the.
Use the following chart to determine the strength of each spring as measured in inch pounds per turn ippt.