Product Name: Dorma TS83 Size 3-6 Overhead Door Closer With Backcheck Manufacturer: Dorma Hardware Finish: Silver Key Features: Fire tested - EN1634 Adjustable size 3-6 to fit various door weights up to 120kg Self-regulating backcheck adapts to door opening force Tested to BS EN1154 standards Applications: Fig 1 Fig 61 Fig 66 Description: Enhance the safety and functionality of your doors with the Dorma TS83 Size 3-6 Overhead Door Closer With Backcheck. This premium door closer is designed to provide optimal control and smooth operation for doors weighing up to 120kg. Its self-regulating backcheck feature automatically adjusts to the force used to open the door, ensuring consistent performance and preventing damage. Tested to meet rigorous EN1634 and BS EN1154 standards, this door closer offers reliable fire resistance and strength for a variety of applications, including Fig 1, Fig 61, and Fig 66. The adjustable size 3-6 design allows for easy customization to