Dorma BTS80SZ6 Size 6 Concealed Floor Door Closer

Product Description

The DORMA BTS80SZ6 is a size 6 double-acting concealed floor door closer designed for heavy-duty commercial door applications. Installed within the floor, the closer body controls door swing in both directions, providing smooth, consistent closing action without surface-mounted hardware. The unit ships as the body only, making it appropriate for new construction or retrofit projects where arms and covers are sourced separately. At 15.1 pounds and sized at 19 inches in length, this is a robust unit built for high-cycle commercial openings. Installation is typically performed by licensed door hardware professionals or commercial contractors.

The BTS80SZ6 is suited for commercial and institutional environments where aesthetics and durability are both priorities. Concealed floor closers are commonly specified for glass doors, wood doors, and aluminum-framed doors in lobbies, storefronts, offices, and public facilities. The double-acting function allows the door to swing freely in both directions while still returning to the closed position, making it appropriate for high-traffic corridors and vestibules.

Key Features

• Size 6 closing power suitable for large, heavy commercial doors
• Double-acting design allows door swing in both directions
• Concealed floor-mount installation keeps hardware hidden from view
• Body-only configuration for flexible pairing with compatible arms and cover plates
• Heavy-duty construction at 15.1 pounds for high-cycle commercial use

Compatibility

Designed as an OEM-style floor closer body for commercial door systems requiring a size 6 double-acting concealed floor closer. Confirm arm and cover plate compatibility with DORMA BTS80 series accessories before ordering.

Installation Notes

Installation of concealed floor door closers should be performed by a qualified door hardware technician or licensed contractor. Power down any access control or electric strike hardware integrated with the door before beginning work. The floor must be core-drilled or pre-cut to accept the closer body, and the installation pocket must be properly aligned with the door pivot centerline. Follow applicable building codes and the manufacturer's template instructions for correct positioning and mounting depth.