4040XP Tandem Door Closer - Extra Heavy Duty

The correct choice of door control involves many factors, not least the ‘sail area’ - i.e. a combination of the door’s height x width. In general terms all Relcross heavy duty overhead door closers are capable of controlling conventional doors up to 136 kilos in weight although all doors must be free swinging with the correct choice of hinges and pivots being a critical prerequisite.

Where doors exceed the 136 kilo limit, a proven custom (Relcross) solution exists. Developed over many years the 4040XP.TANDEM Overhead Door Closer (shows Single cylinder layout) comprises two heavy duty cylinders - linked to produce considerable power without any loss of control - to suit doors to 272 kilos. An additional cylinder can be introduced for extra heavy doors in excess of 272 kilos - consult the sales office for further information.