Gerda GD 1000 B Door Closer EN 2/3/4 Hold-Open Arm Fire Rated Silver

Product Overview

The Gerda GD 1000 B door closer is crafted for residential and commercial buildings where certified fire protection and durability are paramount. Featuring an aluminum body with a steel arm, it provides a controlled closing action for doors up to 1100 mm wide and a leaf weight of 85 kg. Compliance with EN 1154 and resistance to over 3 hours of fire exposure ensure suitability for high-safety environments.

This GD 1000 B model distinguishes itself by including a hold-open arm mechanism, enabling doors to be temporarily fixed in an open position without additional hardware. This feature reduces installation complexity for facility managers and simplifies compliance for emergency egress routes. The unit is particularly recommended for office installations, public buildings, or commercial spaces where fire-rated doors must occasionally remain open during loading or events.

Key Features

• Hold-open arm ? integrated mechanism allows the door to stay open at a chosen angle, ideal for flexible access scenarios


• Fixed closing force EN 2/3/4 ? accommodates a variety of interior and moderately heavy doors up to 85 kg


• Certified for 500,000 cycles ? ensures longevity in frequent-use applications such as high-traffic corridors


• Fire resistance over 3 hours ? meets stringent safety requirements for fire-rated doors


• Aluminum body, steel arm ? robust construction supports stable operation and durability


• Adjustable closing speed and final latch force ? two independent valves for fine-tuning door behavior


• Operational temperature -40°C to 45°C ? functions reliably in unheated or transitional spaces

Technical Specifications

• Closing Force: EN 2/3/4 (fixed)


• Maximum Door Width: 1100 mm


• Maximum Door Weight: 85 kg


• Fire Resistance: Over 3 hours


• Certification: EN 1154


• Cycle Certification: 500,000 cycles


• Body Material: Aluminum


• Arm Material: Steel


• Hold-open Arm: Yes (GD1000B version)


• Maximum Opening Angle: 180°


• Adjustable Closing Speed Angle Range: 15°-180°


• Adjustable Final Latch Force Angle Range: 0°-15°


• Operating Temperature: -40°C to 45°C


• Finish: Silver


• Corrosion Resistance Classification: 3


• EN1154 Classification: 4/8/3/1/1/3

Applications

Used in residential and commercial properties including offices, hospitals, schools, and mixed-use buildings. Designed for fire-rated and smoke-control doors requiring a certified closer. Suited to environments needing occasional hold-open capability, such as public corridors, loading zones, and event spaces. Appropriate for bulk installation projects in compliance-driven facilities.

Packaging & Shipping

Standard export packaging. Unit includes door closer body, hold-open arm, mounting hardware, and installation manual.