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High strength mill

High strength mill

Feed size: ≤15-≤30㎜

Output granularity: 0.033-0.173㎜

Production capacity: 0.6-176 shifts / t

Applicable materials: limestone, calcite, barite, talc, gypsum, diabase, quartzite, bentonite, ceramics, slag, etc.

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Product Introduction

     High-strength milling machine is one of Raymond's milling machine series products. High-strength milling is suitable for crushing barite, limestone, ceramics, slag and other Mohs hardness is not more than 9.3, and humidity is below 6%. Non-flammable and explosive mining, metallurgy, chemical, building materials and other industries of more than 280 materials for high-precision milling processing, the final product size is adjusted in the range of 80-425 mesh (up to 1000 mesh). The special device added in the machine can produce coarse powder of 30-80 mesh.


    High-strength mill picture

    Working process of high strength mill

    In the high-strength grinding machine, a high-pressure spring with a pressure of 1000-1500 kg is fastened on the grinding roller hanger. After starting work, the grinding roller rotates around the main shaft and rolls against the grinding ring under the action of high-pressure spring and centrifugal force. The pressure is 1.2 times higher than the Raymond mill under the same dynamic conditions, so the output is greatly increased. After the material to be ground enters the grinding chamber, it is lifted by a shovel blade and sent between the grinding roller and the grinding ring for rolling. After the rolling, the powder is taken into the analysis machine by the circulating wind of the drum machine, and the qualified fine powder enters the cyclone with the air flow The powder collector is the finished product, and the large-grain materials fall back to the grinding. The circulating wind returns to the blower and repeats the above process, and the remaining wind enters the bag filter for purification. When the wear of the grinding roller and the ring reaches a certain level, adjust the length of the high pressure spring to maintain a constant rolling pressure between the grinding roller and the ring. So as to ensure a stable output.

    Internal structure of high strength mill

    High strength mill performance advantages

     Simple process and strong independence

    The high-strength mill adopts a three-dimensional structure, with a small footprint and strong completeness. It independently forms a production system from block materials to finished powder.

     Uniformity and easy maintenance

    The fineness of the finished powder is uniform, and the pass rate is 99%, which is difficult for other milling equipment. The electrical system adopts centralized control, the milling workshop can basically realize unmanned operation, and the maintenance is convenient.

     High wear resistance and reliable operation

    Important parts are made of high-quality steel, wear-resistant parts are made of high-performance wear-resistant materials, and the whole machine has high wear-resistance. The transmission device adopts closed gearboxes and belt wheels, which have stable transmission and reliable operation.

Raymond mill62 High strength66 High strength76 High strength87 High strength92 High strength93 High strength97 Raymond mill4119 Raymond mill4525
<15 <15 <20 <25 <25 <25 <25 ≤25 ≤30
Size of finished 
0.173-0.033 0.173-0.033 0.173-0.033 0.173-0.033 0.173-0.033 0.173-0.033 0.173-0.033 0.173-0.044 0.173-0.044
Shift output of
 different material 
0.6-9 1-20 1.5-25 2.8-33 3-36 3.5-40 4-52 8-78 16-176
Rotate speed 
of central 
274 190 170 161 148 140 130 105 82
Diameter of 
525 725 850 907.5 973 1006 1050 1400 1770
Diameter of 
150 210 250 270 300 300 310 410 450
Height of
100 150 150 150 160 160 170 190 250
Main Motor(kw) 7.5 15 18.5 22 30 30 37 75 132
Fan Motor 4-5.5 4-11 4-15 4-18.5 4-22 2-22 4-37 4-75 4-132
Analyzer Motor 6-1.1 6-2.2 6-2.2 6-2.2 6-2.2 6-3 4A-5.5 4B-7.5 4A-18.5
Size of finished 
High-strength97 <25 0.173-0.033
High-strength93 <25 0.173-0.033
High-strength92 <25 0.173-0.033
High-strength87 <25 0.173-0.033
High-strength76 <20 0.173-0.033
High-strength66 <15 0.173-0.033
High-strength62 <15 0.173-0.033
Raymond mill4119 ≤25 0.173-0.044
Raymond mill4525 ≤30 0.173-0.044
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