For fast, high-speed grinding of small samples from 3/4" to 2". The unit comes with a stainless steel or hard-faced blade that will grind bauxite, bone, ceramics, Devorda's alloy, fly ash, frozen tissue, glass, kaolinites, limestone, muscle tissue, pharmaceuticals, pigment blends, rocks, slags, teeth and more. Grinding chamber measures 2 1/8"dia.x 1"deep. The temp of the grinding chamber is maintained by built-in heat exchangers and tubing connections on the cover and housing accept tubes for circulating water, methanol/dry ice liquid, or liquid nitrogen.Removable cover, grinding assembly, and milling blade head for easy cleaning. Aluminum housing has an epoxy finish and non-skid rubber feet. Control panel has an overload protection reset button and a pilot light. The 150 watts motor develops a torque of 30-ounce-inches (2.2 Kg-cm) at 12,000 rpm. With stainless steel blade, 0-5 minutes electrical timer with an ON position for continuous operation.