Spring Measuring Forms

Name

Email Address*

Company name*

Structural / clear opening width (mm)*

Structural / clear opening height (mm)*

Weight of door (kg) — total weight of everything supported by cables*

Reference numbers from the cable / counterbalance drums

Number of panels in the door*

Wind bracing bars*
YesNo

Wind bracing bar size
65mm110mm

Application / headroom type*
Standard liftLow liftHigh liftVertical lift

Dimension from finished floor level to under side of horizontal tracks - Required for high lift doors (mm)

Dimension from finished floor level to centre line of counterbalance shaft (mm)

If top tracks are at an incline: degrees from horizontal (°)

How many existing springs?

Shaft diameter (mm)*

Is the door operated by an electric motor?*
YesNo

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Name*

Email Address*

Company name*

Inside diameter of spring (mm)*

Wire diameter (mm)*

Length of spring / No. of coils*

Shaft diameter (mm)*