Contract grinding

The most varied breakers, crushers and mills ranging from the laboratory to pilot scale are provided for contract comminution. Fine and ultrafine mineral powder is produced in our model grinding plant comprising a ball mill and an ultrafine classifier. Further working steps, such as mixing, coating, sieve classification and magnetic separation, can be integrated where necessary. Our strengths are long-term experience in grinding of the most varied materials down to a fineness close to 1 µm and the creativeness of our employees, which together enable us to find solutions to the most demanding challenges. Our model grinding plant is designed for making product samples in batch sizes in the range between 1,000 kg and approx. 100 t. Smaller samples are processed in laboratory mills.

Comminution / grinding

Model ball mill

Deflector wheel classifier: ATP200

Handling and logistics of material quantities up to 100 t

Our services

• Grindability tests from laboratory- to pilot-scale
• Designing and dimensioning of grinding plants
• Optimisation of existing processes
• Remote diagnostics
• Development of ultrafine products
• Production of samples for application tests (from a few kilograms up to several tons)
• Contract grinding

Model grinding plant variants:

• Operating modes: Continuous grinding, circular grinding, sifting
• Diameter of the mill tube: 800 mm
• mill length: 1 to 2.5 m in steps of 0.5 m
• Mill lining: Aluminium oxide, steel
• Discharge systems: Overflow, discharge chamber with peripheral discharge at the end of the mill
• Separating walls can be installed
• 2 x 1 m shots with ceramic lining and 4 lifting bars 30 mm in height
• Additional units: Sieves/screens, breakers, magnetic separators

Materials

• Silicates (clay, kaolin, talcum, wollastonite, mica, kieselguhr, perlite, zeolite)
• Oxides/hydroxides (quartz, rutile, magnetite, hematite, brucite)
• Carbonates (limestone, chalk, dolomite, magnesite, huntite)
• Sulphates (gypsum, heavy spar)
• Ores, rocks, earths (bauxite, base metals, noble metals, rare earths, pegmatites, laterites, serpentinites, pozzolona, colouring earths, …)
• Phosphates (apatite)
• Technical minerals and residues (aluminium oxide, ammonium bicarbonate, bentonite, burnt lime)
• Calcined clay, cement clinker, concrete, cellular concrete, gypsum board, FGD gypsum, phosphogypsum, slag sand, roof tiles
• Porcelain, spinel, corundum, shards of glass, foam glass, glass wool, silicon carbide, magnesia, slags, fly ash,
• Pigments, ferrites, sulphites of metals, mill scale)
• Carbon (black coal, brown coal, HTC hydrochar, coke, petroleum coke, charcoal, peat moss, Oil shale, graphite)
• Metal powder