Ceiling operator with drag chain track to automate sectional doors or counterweight garage doors. This operator is available in 2 versions with different power, SHEL 50 and SHEL 75, with the latter stronger than the former.
Chain dragging pinion for NICE SHEL both versions.
Specific grease for automatic repair. Used when internal gears of electromechanical operators have to be replaced. 125g tube.