Shanghai Zenith Company

MTW series Trapezium Mill

The MTW Series Continental Trapezoid Grinding mills are mainly applied to the powder processing of mineral products in the industries of mining,metallurgy,chemical,and contruction materials,etc. They can produce powder from various non-flammable and non-explosive mineral materials with Mohs hardness below 9 and humidity below 6% ,such as quartz,feldspar,calcite,talcum,marble, ceramics ,iron mine,soft coal ,dolomite,active carbon,plum sandstone,basalt,etc.

   

Technical Advantages:

1.Main shaft transmission: MTW series mills adopt bevel gear integral transmission ,which will better compact the whole structure , simplify the installation as well as improve the efficiency.The traditional mill needs decelerator and ratcheting to drive the main shaft that increases the installing difficulty and is easy to bring noise and reduce the efficiency.
2. Inner lubrication system: MTW series mills adopt light-oil lubrication to achieve the lubrication between the main bearing and gear bearing, without oil pump or lubrication station. The traditional mills’ lubrication adopts grease lubrication which increases the resistance of lubrication, creates high inherent temperature and shortens the service life of bearing.
3. Arc whirl tube: MTW series mills adopt arc whirl tube to reduce the resistance and avoid the air-stop and so on. The traditional mills adopt board-type whirl tube that increases the resistance, reduces the performance, and stops the air flow and so on.
4. Curved surface shovel with changeable edge: The traditional mills adopt quick wear edge and edge is combined with shovel. If the edge is worn, all of the shovel should be changed ,which increases the cost and the off time. The edge of MTW series mill adopts wearable alloy materials which improve the service life. The Changeable edge is easy to change ,which saves time and cost. The traditional flat shovel make the materials accumulate in one level,which reduces the ring and roller’ service life. The curved surface shovel makes a vertical material liner ,which increases the working face and capacity.
5. non-resistance inlet shell: Traditional observation door of shell protrudes that makes the inner surface is not so smooth that it will bring eddy effect and increase the consumption. MTW series mill adopts the same curved surface which avoids the eddy effect.
6. Insolating type cyclone collector: Adoption of the insolating structure between the inner core and mixed air flow improves the classifying efficiency and precision. While the traditional one do not have the isolating structure.

Technical Data:

Model	MTW110	MTW138	MTW175
Roller quantity	4	4	6
Ring inner diameter (mm)	Ф1100	Ф1380	Ф1750
Main unit speed(r/min)	120	96	75
Max. feeding size(mm)	< 30	< 35	< 40
Product size (mm)	1.6～0.045	1.6～0.045	1.6～0.045
Capacity (t/h)	3.5～10	6.5～15	11～25
Overall dimension （mm）	8910×6950×9010	9860×8340×10227	13500×11500×9500
Weight （t）	18	28.5	46

If there is change of the above specification, it subjects to the newest products' specifications.

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