A unit of Robbins & Myers Inc., this company offers a collection of portable and small top-entering mixers. Large-diameter shafts in a variety of lengths, rugged housings and mixer mounts, and multiple standard shaft speeds provide flexibility and reliability. Other product features include power ranges from 1Ú4-5 hp; output speeds of 170-1,750 rpm; efficient, totally enclosed XP or air motors with other options available; and heavy-duty cast-aluminum housings.