dormakaba 9900064000300 Sliding Block for G-N GR-3500 Rail Adjustable Hold-Open 75°-150°

Product Overview

The Sliding Block for G-N and GR-3500 guide rails (SKU 9900064000300) is an original spare part for dormakaba TS 91, TS 92, TS 93, and GROOM GR-3500 door closers. It is designed for use in single-leaf interior doors within commercial or institution facilities, where secure, adjustable door hold-open in a specified position is required. The block fits standard G-N sliding rails and supports both DIN left and right door orientations, providing flexible installation options.

The key differentiation of this sliding block is its easily adjustable hold-open angle, ranging from 75° to 150°, which enables precise door positioning according to project requirements. This adjustability reduces installation complexity on-site and allows for later modification without replacing core components. Recommended especially for after-market upgrades or maintenance in office buildings, schools, and similar environments using compatible dormakaba door closers.

Key Features

• Original spare part ? specifically engineered for dormakaba TS 91, TS 92, TS 93, and GROOM GR-3500 door closers


• Compatible with G-N and GR-3500 sliding guide rails ? supports retrofit and replacement on standard rail profiles


• Adjustable hold-open angle ? set position anywhere from 75° to 150° to meet project needs


• DIN left or right application ? universal usage for various door swing configurations


• Manual locking and unlocking ? enables activation or deactivation of hold-open function as required


• Force adjustment ? allows adaptation to different door types for optimal performance


• Screw-on retrofit ? suitable for later installation without replacing the entire rail system

Technical Specifications

• Product Type: Sliding block for hold-open device


• Compatibility: dormakaba TS 91, TS 92, TS 93, GROOM GR-3500


• Rail Type: G-N and GR-3500 sliding rail


• Hold-open Angle Range: 75° to 150° (adjustable)


• Door Type: Single-leaf, internal doors


• Hand: DIN left and DIN right


• Mounting: Screw-on, suitable for later installation


• Function: Manual locking/unlocking, force adjustable


• Product Code: 9900064000300

Applications

Used for adjusting and securing the open position of single-leaf interior doors in commercial buildings, offices, and educational institutions equipped with dormakaba TS 91/92/93 or GROOM GR-3500 door closers. Suitable for retrofit, upgrade, or spare part replacement on doors with G-N or GR-3500 rails. Not intended for use with fire-rated or smoke control doors.

Packaging & Shipping

Standard export packaging. Unit includes the sliding block and mounting accessories for installation on the compatible rail system.