Compact rectangular body made of mild steel duly powder coated, with clear acrylic lockable lid, continuously variable speed regulator, safety fuse, pilot lamp etc. provided on streamlined panel. With plug-cord to work on 220 V AC 50 Hz single phase. Maximum speed 4000 RPM. A special safety mode is provided that when lid is open instrument will stop working. Capacity (ml.) 4 x 50 6 x 50 8 x 15 12 x 15 16 x 15 Optionals : 1. Automatic 0-60 minutes Timer. 2. Speedometer Digital. 3. Maximum speed 10000 can also be provided.