This series owing to light self-weight, reasonable structure(just contact with two points of the bar)is suitable for coiled bar, and has replaced former series mw22-¡õ54, which are not recommend by us now.However we still list main data for these two series for your reference, its magnetic pole is suitable for coiled bar which is of different diamneter.The length of coiled bar is important is choosing the right electromagnet.It can be put into operation along length or width direction of electromagnet and multiple units can be used together or separately as well. Depends