NHN 490 Concealed Door Closer

NHN 490 Concealed Door Closer

The NHN 490 is a slimline concealed hydraulic door closer designed for modern doors where reliable closing control and a clean appearance are required. The closer is installed within the door and frame, keeping the mechanism concealed when the door is closed.

Technical specifications

• Model: 490
• Power size: EN 2–4
• Maximum door width: 1100 mm
• Maximum door weight: 80 kg
• Spring power: adjustable by Allen key
• Closing and latching speed: adjustable
• Installation: non-handed
• Hold-open: optional
• Back check: optional
• DS slide arm: available for double-swing applications
• Standard finish: RAL 9006

Design and operation

The slimline body is intended for concealed installations. Independent hydraulic adjustment valves provide control over the closing movement, while the EN 2–4 power range allows the closer to be selected for different door requirements.

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The NHN 490 concealed door closer is a slimline hydraulic door closer for architectural and commercial doors where the closer should remain discreet. Its adjustable EN 2–4 power range supports doors up to 1100 mm wide and 80 kg, depending on the selected setting.

The NHN 490 uses adjustable hydraulic valves for closing-speed control and supports non-handed installation. Optional features include hold-open and back check, while the DS slide arm can be used for double-swing applications. This combination makes the NHN 490 suitable for offices, hospitality, commercial interiors and other projects requiring controlled door closing with minimal visible hardware.