Overflow Ball Mill (Mining Mill)

Applications of Overflow Ball Mill:

Overflow ball mill can be used for grinding various mine and other materials, which has been widely applied for various national economy departments, such as mineral processing, building and chemical industry, etc.

Overflow Ball Mill (mining mill)

Features of Overflow Ball Mill:

Overflow ball mill has a series of merits, such as comparatively simple structure, no grid, high grinding fineness, comparatively less ball loading quantity and so on, widely used into the second stage fine grinding or other occasions requiring finer products.

Comparison between Overflow Ball Mill and Grate Ball Mill:

Overflow ball mill:

Its simple structure and easy maintenance makes it popular use in fine grinding. When the discharging granularity of mineral processing is 48-65mesh, grate ball mill is usually used; while overflow ball mill is better choice for 150-200mesh.

Grate ball mill: 

Its production efficiency is higher than overflow ball mill; 

The mineral pulp stored in the ball mill is less, and the fine-grained mineral can discharge timely;

It’s not easy for greater density mineral to gather in ball mill, and the occurrence of overgrinding is rare;

The resistance of mineral pulp is small when steel ball falls.

Therefore, mineral grinding at first stage always uses the grate ball mill.

Advantages of HANDA Overflow Ball Mill:

1. Saving energy: With the matching between driver and grinding energy consumption, the energy can be saved greatly.

2. High grinding efficiency and good lining plate quality.

3. Using closed system to reduce the dust; Ball mill and grader can form a closed system with negative pressure transporting and without dust, decreasing the harm to human body.

4. Flexible design for discharging part.

5. Rotation part: All rotation part, including the drum, lining plate, medium, parting board and discharging grid plate, adopts high quality component to assemble.

6. Feeding part with large charging rate: The reasonable feeding port design increases the feeding rate.

Overflow Ball Mill Technical Data

Type Drum diameter Drum length Available volume Speed of tube Max weight of ball Driving form Motor Dimension (L*W*H) Weight
Power Revolution
  mm mm r/min t   kw r/min m t
MQY15*30 1500 3000 5 26.6 9 Edge drive 95 742 7.4*3.4*2.8 18.5
MQY15*36 1500 3600 5.7 26.6 10.6   95 742 8.0*3.4*2.8 17.22
MQY18*61 1830 6100 13.4 24.5 24.6 Edge drive 220 736 10.2*5.1*4.0 37.3
MQY21*30 2100 3000 9.4 22.1 15 200 740 8.5*4.65*3 45
MQY24*30 2400 3000 12.2 21 22.5 250 980 8.8*4.7*4.4 55
MQY24*70 2400 7000 26.66 21 48 475 740 14.3*5.8*4.4 67
MQY27*36 2700 3600 18.5 20.5 39 400 187.5 9.8*5.8*4.7 61.34
MQY27*40 2700 4000 20.5 20.24 38 400 187.5 10.4*5.8*4.7 70
MQY27*45 2700 4500 23.5 20.5 43.5 500 187.5 12.5*5.8*4.7 76
MQY27*60 2700 6000 34.34 19.5 53 630 589 13.5*5.9*4.7 71.2
MQY28*54 2800 5400 30 19.5 55.2 630 167 13*5.83*4.7 97.8
MQY28*80 2800 8000 43 20 78.6 800 137 16.5*7.3*5 115
MQY30*11 3000 11000 69.2 17.3 100 Centre drive 1250 429 28.9*3.8*5 227.8
MQY32*36 3200 3600 26.3 18.3 48.4 Edge drive 500 167 14.3*7.3*6 116.94
MQY32*40 3200 4000 29.2 18.2 60 560 980 16.7*7.3*6 121.4
MQY32*45 3200 4500 32.9 18.3 60.5 630 167 13*7.0*5.82 124.23
MQY32*54 3200 5400 39.4 18.3 73 800 167 14.2*7.0*5.82 129
MQY32*64 3200 6400 46.75 18.3 86 1000 167 15.2*7.0*5.8 140
MQY32*75 3200 7500 55.5 18.3 102 1250 743 17.7*8.4*6.3 154
MQY32*90 3200 9000 64.2 18.3 106.6 1250 150 18.5.7.3*6 173
MQY34*45 3400 4500 37 18.4 74.6 800 167 11.5*7*6.1 129.8
MQY34*56 3400 5600 45.8 17.9 84.3 1120 985 16.7*7.6*6.3  
MQY36*45 3600 4500 41.4 17.25 76 1000 167 13*7.3*6.3 144.1
MQY36*50 3600 5000 46.7 17.5 85.96 1250 167 15*7.6*6.2 150
MQY36*50 3600 5000 46.7 17.3 85.96 Centre drive 1250 429 23*4.6*6.3 176
MQY36*56 3600 5600 55.4 17.76 106.3 Edge drive 1250 750 14.4*8*6.3 159.7
MQY36*60 3600 6000 55.7 17.3 102.5 Centre drive 1250 429 24*4.6*6.3 138.73
MQY36*60 3600 6000 54 17.3 102 Edge drive 1250 167 15.6*8.3*6.3 162.7
MQY36*61 3600 6100 55.36 17.76 106.3 1200 980 15.8*8.5*6.2 164.1
MQY36*85 3600 8500 79 17.4 131 1800 743 20*8.2*7.1 251.89
MQY36*90 3600 9000 83.5 17.4 138 Centre drive 1800 743 28*4.6*5.6 286
MQY38*67 3800 6700 70 16.5 130 Edge drive 1400 743 19*8.2*7.1 185.2
MQY40*60 4000 6000 69.8 16.0 126 1500 200 17.4*9.5*7.6 203.5
MQY40*67 4000 6700 78 16.0 136.3 1600 200 15.6*9.6*7.3 206.2
MQY40*135 4000 13500 155 16 233   3300 200 23*10*4.9 343
MQY43*61 4270 6100 80 15.67 144 Edge drive 1750 200 14*10*7.7 215.3
MQY50*64 5030 6408 120 14.4 251 2600 200 14.6*11*9.1 318.5
MQY50*83 5030 8300 152.3 14.4 266 3300 200 22*10.5*9 402.6
MQY55*65 5500 6500 143.3 13.8 264 3400 200 18.5*9.8*8.9 451.5
MQY50*85 5500 8500 187.4 13.8 335 4500 200 20.5*12*9.8  

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