Dormakaba DP86 8600, 7000 Series Closer Drop Plate

The DP86 is a drop plate for top jamb mounting a Dormakaba surface door closer. It lowers the closer body so the slim plastic cover clears a surface applied stop or holder, and it also lets you run a parallel arm installation on doors with a shallow top rail. It is a replacement/accessory part, not a closer, so you order it in addition to the closer itself.

Yes, down to a 2-1/2 inch top rail for non-hold open applications. That is the published minimum top rail width for the DP86 with parallel arm mounting. If your rail is shallower than 2-1/2 inches, a drop plate will not rescue the install and you need to look at a different mounting or a different closer arm.

Overhead ceiling clearance has to be 1-3/4 inches (44 mm) or more. On top jamb installs in a soffit or under a low ceiling, measure that gap first. Anything tighter and the closer body will not sit on the plate as intended.

The plate measures 13 inches long by 3-1/4 inches high. Useful to know before you commit on a frame face that has an electric strike box, a hinge, or a surface stop competing for the same real estate.

Three finishes: 689 anodized aluminum, 693 black, and 695 dark duranodic bronze. Those are the standard closer finishes, so you can match the plate to the closer cover and to aluminum storefront hardware already on the building. Property managers standardizing a fleet of doors usually pick 689 for clear aluminum frames and 695 for bronze storefront.

Not usually. A standard top jamb mount goes straight to the frame face. You reach for the DP86 when something is in the way or the geometry does not work: a surface applied stop or holder that the slim closer cover would hit, or a door top rail too shallow to take a parallel arm bracket, where 2-1/2 inches is the minimum this plate supports for non-hold open. If neither applies, skip the plate.