NEUMAN & ESSER roller mills are suitable for fine grinding of soft to medium hard materials, specifically light, adhesive and temperature sensitive materials. The throughput rates vary from 100 kg/h to 80 t/h depending on mill size, material and its fineness. Depending on the material, grinding and drying of material with a humidity of 35% is possible.
The material is fed to the mill by a feeding device and drops onto the bottom of the lower mill housing. In front of each pendulum a rotary shovel is installed which picks up the material from the bottom and feeds it between the rolls and the grinding ring. Here the grinding of the material takes place.
An air stream lifts the ground product from the lower mill housing, into a static or dynamic classifier mounted on top of the mill. This classifier can be adjusted to the required particle size. The separated coarse product flows back to the mill for regrinding. Fine material is drawn through the classifier and is sucked into a dust collector.
Roller mills are suitable for continuous operation. Shovels, bull ring and rolls are made of special wear resistant steel and can easily be replaced.
Grinding and Classifying Systems
Neuman & Esser has built grinding systems since 1930. The first product was the pendulum roller mill, which dominated the market for a long time with its particularly robust design. In 1994, NEA introduced its own impact classifier mill to the market and in 1998, the company received the patent. NEA mills are used for applications within the ceramic and chemical industries, including pigment production and processing technologies. In recent years, the areas of powder coating production, confectionery and the food industries have followed.