Overhead Door Spring Winding Chart

On standard lift doors the formula is dh dc 1 or the door height in inches divided by the drum circumference in inches plus one.

Overhead door spring winding chart.

Each torsion spring consists of spring coils stationary cone and a winding cone fig. 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 spring coils are color coded depending on the spring size and the winding cone is color coded separately either red or black. Do not include the winding and stationary ends.

Measure the overall length of the garage door spring unwound take all your measurements from the broken spring. Determine the wire. All dura lift springs meet the dasma standard rating of 10 000 plus door open and close cycles. 3 3 8 or 3 3 4 step 3.

You can find vertical lift doors normally in commercial and industrial applications such as on loading docks. Step 2 measure the inside diameter of the your garage door spring it will be one of the following. Both the winding and stationary cones are professionally installed for safe operation. Measure the spring only from coil to coil.

Your door will have either one or two torsion springs.