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DOUBLE ROTOR HAMMER MILL TYPE ROTODUE 4M, SUITABLE FOR GRINDING AND DRYING
The twin rotor construction of our hammer mills ROTODUE 4M 4MXP offers the following interesting features:
Double volume of grinding chamber and double surface of the discharge grate, for a given width of the mill.
The capacity of the mill and the throughput of hot gaz for drying are, by consequence, increased consistently.
The machine can work at high tip speed, up to 80 m/s.
The mill can be adapted to many different applications, even with relatively abrasive materials, with proper choice of feed opening position and rotor type.
The ROTODUE 4M 4MXP mills are ideal for production of products minus 0,5 χ 3 mm., depending on installation and working conditions.
The product shape is well rounded or poliedric.
Fine grinding of friable materials of medium hardness and abrasivity
Contemporary drying and grinding blowing hot gas through the mill
Strong construction and easy maintenance
Excellent for calcium carbonate, dolomite, clays, magnesium oxide, lime, hydrated lime, gypsum, scraps of bricks, etc
CONSTRUCTION FEATURES
Central feeding (MA) for the maximum capacity
Side feeding (MB) for progressive grinding action, suitable for finer products and useful to reduce wear with abrasive materials
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 of wear resistant alloy
Standard multi-disc rotor with swinging hammers.
Heavy duty drum type rotor type XP with fixed hammers
Hammers of cast high chromium alloy
Bar grate with adjustable opening, or perforated sheet grate
MAIN APPLICATIONS
Production of powders and fine sands of marble, limestone, dolomite for use in glass factories, premixed dry mortars, manufacturing of floor tiles agglomerated with cement or resins
Grinding of clays for production of roof tiles, bricks, extruded floor tiles
This machine is designed for contemporary drying and grinding of wet raw materials with moisture content in the range 4-8% (depending on the raw material)
In most cases the mill works in cycle with one screen to check or to classify the product.
TECHNICAL FEATURES
| TYPE | ROTODUE 4M - MXP 500 | ROTODUE 4M - MXP 1000 | |
| Feed in let | mm | 300 x 570 | 300 x 1120 |
| Maximum feed size: | |||
| - with disc rotor / swinging hammers | mm | 40 | 40 |
| - with drum rotor / fixed hammers | mm | 100 | 100 |
| Speed | giri / 1' | 1000 χ 1800 | 1000 χ 1650 |
| Required power | kW | 2 x 37 χ 55 | 2 x 75 χ 90 |
| Production (as indication only) | Ton/ora | 8 χ 25 | 15 χ 50 |
| Weight | Kg | 5000 | 9000 |
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