Sizes of Conveyor Drum Roller Manufacturers. Conveyor drum roller face width MM of 600, 700, 750, 950, 1150, 1400, 1600, 1800, 2000, 2200 mm Head end drum rubber lagged and Tail end conveyor roller manufactured for respective belt width MM 500, 600, 650, 800, 1000, 1200, 1400, 1600, 1800, 2000 mm BW.