Referring to the diagram above you can calculate the necessary length of spindle extension:

Extension = X - floor clearance (normally 8mm)

Collar height Z of the extended spindle inserts = Spindle extension length + 3mm (collar height of the standard spindle insert).

The use of the DORMA 2300 Sealing Compound prevents moisture penetration by filling the cavities between the floor spring body and the cement box.

(mandatory according to e.g. VOB regulations for wet rooms).

Product code : DO2300

1. Adjustable closing speed.
2. Hold-open range or delayed action range.
3. Adjustable range. Point at which hold-open begins, or end of delayed action range (approx. 75°
   to 105°).
4. Mechanical backcheck (from approx. 80°).

In simple terms the leaf weight refers to the actual weight of the door. When used in reference to a unit it may also be thought of as max. load capacity.