Fritsch, Idar-Oberstein, Germany, recently introduced the PULVERISETTE 13 ‘premium line’ disc mill designed for efficient fine grinding of hard-brittle to medium-hard solids of rocks and soils. It provides improved safety thanks to automatic locking of the collecting vessel and grinding chamber. Because of the convenient motor-driven grinding gap adjustment with digital gap display, it is also easier to operate. The material to be ground is comminuted by pressure and shearing action between two counteracting grinding discs with coarse interlocking teeth. The ground material automatically falls down through the pre-set grinding gap into the collection drawer. The desired final fineness can be defined reproducibly simply by adjusting the digital setting of the gap width.

The disc mill can be combined with the PULVERISETTE 1 jaw crusher, also from the premium line series, if there is a requirement for pre-crushing. This offers the advantage of pre- and fine grinding in a single step with integrated sample divider. www.fritsch.de

 

 

 

 

 

 

 

 

 

 

 

The PULVERISETTE 13 disc mill, showing (right) how the grinding chamber can be completely opened to facilitate cleaning