This company’s folding impellers (photo) are designed to enter through the small container openings often encountered in closed-lid mixing environments, then expand to their full operating diameter as the mixer shaft rotates. Standard two-blade folding impellers are sized for use with 2-in. standard bungs up to 6-in. tote openings. They have operational diameters from 2-3/8 to 14 in. The folding impellers provide high-performance mixing, ensuring homogeneity and efficiency. Closed-lid mixing minimizes the risk of external contamination, and reduces splashing and spillage, making clean-up faster and easier. Models are available in 304 and 316/316L stainless steel, with some small-diameter plastic impellers available for laboratory-scale applications. — Indco, Inc., New Albany, Ind.