Retsch has now redesigned its RS 200 model. An ergonomic carry handle facilitates carriage of the heavy grinding jar which is slid on a rail inside the mill.
The new clamping device allows for safe clamping of the jar with less force, an additional sensor checks its correct position. The mill with its stabilized plane drive achieves grind sizes between 20 and 100 microns with high reproducibility, typically in the range of 60 to 180 seconds to achieve the fineness necessary for XRF and other spectral analyses (~100 microns). Speed can be adjusted between 700 - 1,500 min-1.
Grinding sets are available in a variety of sizes and materials. A set of sensors will recognize jars of tungsten or agate and automatically sets the maximum permissible speed to 1,200 and 700 rpm respectively, ensuring optimum results while protecting the material.