Get current pricing for Clamp-on, CLAMP-ON-21564-ID Clamp-on Lightnin Portable Mixer Model Nc4, Serial # 621757. Features 1/4 Hp Drive, 1725rpm, 115/220v, 4.0/2.0amps, 1 Ph. Motor. Has Adjustable Clamp . Product Category: Process Equipment, Sub Category: Process Mixers: