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Fire-resistant vertical lift doors are designed to separate fire compartments and are particularly suitable for locations where there is insufficient lateral space to accommodate conventional sliding gates. The gate leaf moves vertically, minimising the space required on either side of the building opening.
These doors are primarily used in industrial facilities, production halls and warehouses. Depending on the specific design, they achieve fire resistance ratings from EW 15 to EW 90 and EI 15 to EI 90.
The gate leaf consists of individual steel slats with fire-resistant infill and moves vertically within guide profiles installed on both sides of the building opening. A counterweight system balances the gate leaf, facilitating smooth and controlled movement. The standard surface finish is galvanised steel sheet, with optional colours available according to the RAL colour chart. In the standard configuration, the gate can be held in its open position by an electromagnet and closes automatically in the event of a fire alarm.
Depending on the project requirements, the gate can be equipped with:
The gate leaf consists of multiple individual steel slats, each 300–1,100 mm wide. The slats are interconnected using a special joining system. The gate leaf thickness is up to 72 mm. Each slat has a surface made of 0.75 mm thick galvanised steel sheet, which is fully bonded to the fire-resistant infill. The end-stop profile and labyrinth profiles are galvanised as standard.
The counterweight is positioned on the wall alongside the guide profiles, providing the necessary balance for vertical movement.
The door is held in its open position by a 24 V electromagnetic hold-open device. A uniform closing speed is ensured by an electromagnetic speed regulator, while the end position is secured by an end-stop buffer.
As standard, the gate is operated using a manual handle. For all gate configurations, manual operation using a hand chain is recommended to facilitate opening and closing.
The gate can be installed on the following supporting structures, subject to the applicable structural and fire protection requirements:
