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 turns chart.
Use the following chart to determine the strength of each spring as measured in inch pounds per turn ippt.
Things to know about garage door torsion springs.
Multiply the number of turns by the.
In most cases you can determine the wind of your garage door torsion spring by using the color coded system on the cones at the end of the spring.
Spring length how long each spring is 4.
Torsion springs must be measured while unwound or in a relaxed state or your dimensions will be incorrect.
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.
As with the vertical lift doors the formula for the number of turns on the springs is complex.
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The number of turns is based on the height of the door and the size cable drums that you have the rule for 7 doors is 7 5 turns and 8 doors is 8 5 turns and adjust from there.
What a lot greater can be shown regarding this fascinating garage door torsion spring winding chart when your eyes can indulge themselves via owning a browse this great picture proven listed underneath.
That is unless it s a reverse torsion system which we are not going to discuss right now.
Dasma is a leading organization in our industry that created the guidelines and specifications for garage door springs.
Always convert torsion springs to a spring of equal or greater wire diameter.
This system aids in proper identification for repair ordering and.
Garage door spring wind direction color chart.
The chart is based on information from the door access systems manufacturers association dasma.
If you cannot make an exact match it is better to be one or two ippt lower and.
Multiply the door weight by the hi moment arm and then divide by the number of turns.
Where is the best garage door torsion spring chart.
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.
Garage door spring size chart.