The mill Rotodue 4C is suitable to produce air classified powders with granulometry in the range 0 to 100÷300 micron, with d50= in the range 10÷40 micron. Product fineness is easily adjustable by varying the speed of the dynamic air classifier.
The discharge of the product is pneumatic in air stream and therefore the mill is specially suitable for the operation with hot gases.
This allows a partial drying of moist materials during the grinding operation and results in a tremendous reduction of investment, space and operation costs compared with plants where drying is made in separate equipment before grinding
Drying and grinding of petroleum coke and/or coal 97% minus 90 micron, for plants using solid fuel.
Fine grinding and drying of clays for single-fired ceramic tiles
Production of fine powders of medium hard minerals, such as talcum, gypsum, limestone, barite, lime, magnesium oxide.
CONTRUCTION FEATURES Easy maintenance
Body of high thickness welded steel, fully protected inside by replaceable wear plates. Two large hinged covers with hydraulic system for quick opening give easy access to the grinding parts
External bearings, grease lubricated, enclosed in dust-tight supports
Toothed grinding plates wear resistant steel
Standard multi-disc rotor with swinging hammers
Heavy duty drum type rotor type “XP” with fixed hammers
Hammers of cast high chromium alloy
Type ROTODUE 4C/500 ROTODUE 4C/1000 Feed inlet mm 320 x 570 320 x 1120 Maximum feed size mm 20 ÷ 30 20 ÷ 30 Speed rpm 1400 ÷ 1800 1400 ÷ 1650 Required power KW 2 x 45÷75 2 x 90÷132 Capacity (as ton/hour 2 ÷ 8 4 ÷ 15 indication only) Weight kg 5500 10000
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Cimma Ing. Morandotti SpA is operating since 1947 in the design and construction of machines and plants for processing of powders and bulk materials. The company has its offices and factory with 5000 sheltered sqm in Pavia.
Cimma Ing. Morandotti SpA manufactures a wide range of grinding mills and pulverizers designed by its own technical department.
The Engineering Service of Cimma provides the design of complete plants and the evolution of machines for new applications and new technologies. One test and research room with laboratory is available at Cimma´s factory, where new applications and technologies are tested and developed, including the criogenic grinding of heat sensitive materials.
The main application markets of Cimma´s machinery are:
Ceramic Industry for dry preparation of raw materials
the Processing of building materials (classified sand, lime, plaster, dry mortars)
Chemical Industry preparation of solid fuels (petroleum coke, coal, sawdust, grog)
Feed / food industry (spices, licorice, micronizing of cereals)
Recycling of industrial and civil waste.
The reliability of machines supplied by Cimma, the expert engineering service, the efficient technical assistance with spare parts stock have been appreciated along the time by outstanding clients and allow relevant export sales to many countries, directly and through important main contractors.
High focus is constantly given to ambient protection and safety of Cimma´s products.