LUM-Series Ultra Fine Vertical Grinding Mill

LUM-Series Ultra Fine Vertical Grinding Mill

Large capacity, low consumption, environmentally friendly

LUM-Series Ultra Fine Vertical Grinding Mill

LUM-Series Ultra fine vertical grinding mill is an advanced mill which combining our company’ several years of mill-producing experiences, It is designed and researched based on vertical mill technology, absorbing the worldwide ultrafine grinding theories. This series is a professional equipment including ultra fine grinding, classification and delivery.

Output size : 400 - 650 mesh

Production capacity : 5-18 T/H

Ultra-Fine-Vertical-Grinding-MillE-mail:   [email protected]



Pyrophillite, coal, calcite, barite, limestone, lime powder, marble, silica, talc, kaoline, gold ore, ferrite, clay, slag, marble,and so on.

According to 30 years’ research and development experience, basing on design of LM Vertical Mill, adopting technology about superfine vertical mill’ s grinding roller made in Germany, LUM series superfine vertical roller grinding mill was produced as the fist choice for nonmetallic ore milling, the plant can be widely used in construction, mining machinery, chemical, concrete, etc. industries.


It is mainly used in grinding and classification for variety of non-metallic mineral, desulfurization plant in steel and Electricity industry which use limestone powder, the coal powder making from blast furnace injection etc.

The main motor drives the millstone to rotate through the reduction box, meanwhile, the air flow gets into the mill through air intake. The materials come out of the screw feeder and fall on the center of the millstone, and then they will move from the center to the edge of the millstone under the affect of centrifugal force. When they move across the grinding zone, they will get grinded by the rollers. The materials in the air flow will go through the rotor vanes on the separator above. The coarse powder will go back to the millstone while the eligible powder will go out of the mill together with the air flow and get collected by the powder collector. Those collected powder is the final products of the LUM grinding mill. The final products can be in different fineness through adjusting the rotating speed of the rotor of the powder concentrator.


1.As the grinding principle of material layer, materials stay in the mainframe for a very short time , thus decrease repeat grinding ,so the percentage of Iron is little .When it grind white or transparent material , the whiteness and purity of the finished product is higher, which ball mill cannot reach.
2.The milled-in curve of the roll sleeve and liner plate is specially designed with the theory of ultra fine powder, which makes it easier to get material layer and the required fineness at one time when the LUM is used to grind powder.
3.Multiple frequency rotor classifier. The fineness of the finished product can be adjusted in the changeable scope. No need for the second wend-blowing classification and no existence of the low grade material.
4.The percentage lower than 2 um in the finished product is as high as 70% , low residue when fineness is 325 mesh, also can get more finer size from the final product by second classification.
5.The rotary speed of mainframe motor is changed by the frequency control, so the material to be processed is very broad.
6.The ultra fine theory and the multiple classifier make it save 30%-50% energy than the other types of mills when producing products with the same fineness , so it is economic.
7.PLC/DCS automatic control is used to increase the pressure for the rollers ,which makes the pressure can be controlled accurately and no need for the manual operation.
8.Single lubrication station is used for the rollers, in addition, double pumps for every roller with the “pumping-absorbing at one time” working style , which makes the roller bearings not only lubricated and cooled totally ,but also make sure little trapped oil and no possible leakage in the bearing chamber.
9.Little wear. Because the roller and the roll is not touched when the mill is working and the rollers and liner plates are made of strong- quality materials , so there is little wear and the usage life is longer.
10.Automatic control ,easy operation and long-distance control is available.
11.Both electronic and mechanical limit device not only prevent the direct touch between the roll sleeve ,mill stone and liner plates, but also avoid destructive impact and violent vibration.
12.The rollers can be turned out of the mainframe to examine and repair , and it is more convenient to change the roll sleeve and liner plates ,which decrease the stop loss.
13.Little vibration , low noise and the sealed equipment works under negative pressure make sure no outlet powder , clean environment and can reach the national environmental requirement.
14.High grinding efficiency, little pollution to the final products.
15.Advanced, efficient and energy-saving powder-concentrating technology.
16.Secure and efficient operating principles, intelligent operating system.
17.High Output Rate of Finished powders.
18.Long life of tear and wear parts.
19.Environmental friendly, no pollution.


Model LUM1125 LUM1232 LUM1436
inner diameter of ring(mm) 1100 1200 1400
capacity (t/h) 5~12 7~16 8~18
fineness (mesh)400~650 ~D97 ~D97 ~D97
max feeding size(mm) <10 mm < 10mm <10 mm
input moisture <3% <3% <3%
power of motor(KW) 250 315 355
quantity of roller 3 3 3
power of multiple classifier x quantity 15 KWx5 15 KWx7 15 KWx7
reference weight(t) 48 68 90

Learn more about kefid® Ultra-Fine-Vertical-Grinding-Mill

  • Ultra-Fine-Vertical-Grinding-Mill


    A full bevel gearbox reduces noise and increases drive efficiency and power. Automatic oil lubrication system provides better bearing lubrication.

  • Ultra-Fine-Vertical-Grinding-Mill


    Spade shooter saves you money. Frequency controlled separator and cyclone powder collector guarantee high performance

  • Ultra-Fine-Vertical-Grinding-Mill


    Arc air duct reduces power consumption and intelligent control ensures better performance.

  • Ultra-Fine-Vertical-Grinding-Mill

    4.Environmental protection

    Unique air recirculation system and dust collector create a clean environment.