Rutland: Know How - Rutland ITS.11204 How to fit - Machining a 44mm FD30/FD60 fire door core

How to fit the Rutland ITS.11204 concealed door closer in a 44mm door blank. Machining a concealed door closer in a timber door on a CNC machine in a factory. The variable spring EN2-EN4 Cam Action concealed door closer is suitable for doors up to 80kg/1100mm wide. Rutland ITS.11204: https://www.rutlanduk.co.uk/its-11204... ITS.11204 Specification / Data Sheet: https://www.rutlanduk.co.uk/product-d... ITS.11204 O&M (Operations & Maintenance) manual: https://www.rutlanduk.co.uk/product-d...