The Alpine TDG/TTG Twin Turbo Opposed Jet Mill is one of Hosokawa's most advanced, efficient and accurate size reduction systems. It was designed using the same grinding principles as the Alpine AFG, but is able to achieve a tighter particle size distribution and high capacities.  
 
A trend towards increasingly finer particle sizes is also noticeable with mass-produced products. At the same time, tight price limits demand increasingly efficient production. A good starting point to minimising the energy consumption is to reduce the pressure drop at the classifying wheel. 
 
The TDG/TTG jet mill is equipped with a turbo twin classifier head that substantially reduces the pressure drop of the classification. In addition, the flow pattern in the turbo twin classifying wheel makes extremely fine classifying operations at high air flow rates possible. The classifying wheel is supported at both ends and permits very high speeds. This makes it possible to build exceedingly large jet mills with only one single classifying wheel.