Winkhaus GASM.2300-3 Gearbox activPilot Concept Passive Sash 3-Point Lock 1800?2300mm

Product Overview

The Winkhaus GASM.2300-3 gearbox for passive mullion sash applications is designed for surface-hinged tilt-and-turn windows (RU) with passive leaf and mullion, such as large double-sash windows in commercial or residential buildings. It supports window leaf widths from 1800 mm to 2300 mm and is compatible with frame materials including aluminum, timber, PVC, and steel, making it suitable for diverse architectural specifications. The zinc-coated surface provides added durability for long service life.

What distinguishes this particular unit is its factory-fitted three locking points with synchronous stroke action, ensuring enhanced security and reliable closure across notably wide or heavy sashes. This feature minimizes post-installation adjustment effort, provides consistently tight sealing, and satisfies the requirements of large bespoke window assemblies in new build or retrofit projects. Especially well-suited for large-scale fabricators and window system integrators handling oversized or specialty passive sashes.

Key Features

• Synchronous 19 mm stroke ? ensures even locking across the full passive sash height


• Three factory-installed locking points ? optimizes security and tight sealing for wide elements


• Supports sash widths 1800-2300 mm ? suitable for large or bespoke window assemblies


• Compatible with sash groove 16 mm ? matches standard European window profiles


• Single-piece gearbox construction ? reduces installation complexity and mechanical failure risk


• DIN left/right reversible ? can be used for both opening directions without additional SKUs


• Corrosion-resistant zinc coating ? intended for long-term use and high-humidity or demanding environments

Technical Specifications

• Application: Passive mullion sash/windows, double-leaf assemblies


• Min. Sash Width: 1800 mm


• Max. Sash Width: 2300 mm


• Sash Groove: 16 mm


• Locking Points: 3 (factory-installed SEF catches)


• Stroke: 19 mm (synchronous action)


• Compatible Materials: Aluminium, wood, PVC, steel


• Gearbox Version: One-piece


• Handle Position: Central


• Opening Direction: DIN left or right


• Surface Finish: Zinc coated


• Color: Silver


• Integration: Connectable to other activPilot Concept elements

Applications

Designed for double-leaf tilt-and-turn windows with passive sash and mullion in residential, commercial, and institutional buildings. Suitable for special elements and oversized window sashes made of aluminum, timber, PVC, or steel. Commonly specified in new construction, retrofits, and bulk window fabrication projects where secure, even locking and compatibility with multiple sash materials are required.

Packaging & Shipping

Standard export packaging. Unit includes the gearbox assembly with three pre-mounted catches and installation accessories.