Hoists can be equipped with trolley for horizontal traveling. The trolley is fabricated from components bolted and welded together and carried by traveling wheels supported on ball bearings.
Smaller loads can be moved with a push type trolley whilst the hand chain or motor driven should be used for heavier loads. The drive motor is of squirrel cage type with built-in brake. The motor
drives one or more of the trolley wheel's gear rim. Wherever there are limitations to the available head room (dimension H), short head room trolley can be supplied (refer figure IV above)