The heavy-duty door spring No. 65 is the ideal solution for the automatic and controlled return of the door. It is suitable for professional spaces, as well as for the main entrances of apartment buildings or houses, ensuring stability and high durability in daily use.

• Heavy-duty durability: Suitable for doors weighing 45 to 65 kilograms (closing force EN 3).
• Adjustability: Allows adjustment of the closing angle (180° - 15°), controlling the speed and force with which the door closes.
• Maximum opening: Supports door opening angle up to 180°.
• Operating temperature: Operates in extreme weather conditions, with temperatures ranging from -45°C to 50°C.

Technical specifications:

• Type: Heavy-Duty Door Spring (Model No. 65)
• Mechanism: Oil - spring
• Mounting: Arm washer with bearing
• Door weight: 45 - 65 kg
• Door width: Up to 950 mm
• Closing force category: EN 3
• Installation hole distance: 162 x 19 mm
• Maximum opening angle: 180°
• Closing angle adjustment: 180° - 15°