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Product Profile

Based on nearly 20 years of design and production experience, LUM Ultrafine Vertical Mill has been developed as the equipment for ultrafine powder grinding and separation. Its production introduces talents in ultrafine powder production and machine manufacturing industry, and absorbs the technologies and experience of ultrafine vertical mills from Germany, Japan and Taiwan, etc.

LUM Ultrafine Vertical Mill is the specialized ultrafine grinding equipment for non-metallic ores. It suits for grinding non-flammable, non-explosive brittle materials with Moh’s hardness below 6 such as limestone, calcite, marble, talc, barite, brucite, wollastonite, pyrophyllite, dolomite, kaolin, lime, saponite, etc.

The mill takes Automatic Central Control System, widely used in paper-making, plastic, rubber, artificial stone, painting and coating industries. It is the specialized equipment for producing filler of large-scale paper-making plants and calcium carbonate for coating, and processing other large-scale ultrafine powder.

Industrial Application

    • Combining wet grinding, the materials processed by ultrafine vertical mill like calcium carbonate are always characterized by high whiteness, high capacity, low iron content, low power consumption. It is the ideal pre-processing mill which should be given priority to by large-scale paper-making plants before wet grinding.

    • The tailored rubber powder, produced by ultrafine vertical mill, has good reinforcement. In terms of stretching resistance, tear resistance, resilience, ageing resistance, the powder can replace part hard charcoal as filler, apparently cutting the production costs of downstream products.

    • Characterized by rigidity enhancement and excellent processing performance, PVC hard product powder, produced by ultrafine vertical mill can basically substitute light calcium to reduce production costs drastically under the premise of keeping high-quality of PVC.

    • Ultrafine vertical mill, as the best modified grinding equipment for artificial stone powder production, can directly undergo modification during grinding.
      Artificial stone powder produced by ultrafine vertical mill has advantages of low oil absorption and satisfying grading. It reduces the addition of artificial resin and production costs while the product quality is reliable.

    1. Paper-making Field

    2. Rubber Field

    3. PVC Product Field

    4. Artificial Stone Field

    • name of material: talc
      Moh's hardness: 1
      market value: X dollar
      main application: chemical industry、paper making、 carving crafts
      Market favor index: ★★★..

    • name of material: Barite
      Moh's hardness: 2.5-3.5
      market value: X dollar
      main application: oil drilling、chemical industry、glass、rubber、construction industry
      Market favor index: ★★★..

    • name of material: calcite
      Moh's hardness: 3
      market value: X dollar
      main application: chemical industry、papermaking、coating、medcine、foodstuff
      Market favor index: ★★★..

    • name of material: dolomite
      Moh's hardness: 3.5-4
      market value: X dollar
      main application: metallugry、chemical industry、glass、ceramic
      Market favor index: ★★★..

    1. Talc

    2. Barite

    3. calcite

    4. dolomite

Working Principle

Motor makes grinding revolve under action of reduction gear. Materials, after being measured by belt scale, are sent to center of grinding disc by feeding screw. Because of centrifugal force, the materials would move towards the fringe of disc and then enter the grinding zone between grinding roller and disc to be ground.

The materials which have been ground would keep moving toward fringe of grinding disc until they spill out of the disc.

Through air inducing ring on the fringe of grinding disc, airflow sends these spilling materials to powder concentrator for classifying powders. The coarse powders which don’t meet the requirement of fineness would fall to the disc for another grinding while these qualified powders, as finished products, would be collected into dust collector and finally sent to finished product silo by conveying system for storage and packaging.

Technological Process

Production Process
  • Crushing system: raw material silo; feeder; jaw crusher; belt conveyor; de-ironing separator; hammer crusher; elevator; dust collector; surge bin
  • Grinding system: quantitative belt scale;elevator; spiral conveyor; de-ironing separator; ultrafine vertical mill; pulse dust collector; fan; air door
  • Conveying system: elevator or pneumatic conveyor
  • Auxiliary system: agent adding system; compressed air system; water cooling system

Technical Parameter

  • LUM1125
  • LUM1232
  • LUM1436
  1. Assessment items Ultrafine ground calcium carbonate
    Capacity t 11.0~14.0 8.0~10.0 7.0~8.0 5.0~6.0 3.0~4.0
    Blaine cm2/g 11000±500 13500±500 15000±500 17000±500 19000±1000
    325mesh residue % 0.015 0.015 0.01 0 0
    <2um % 34 38 46 53 60
    Mean diameter: D50 um 4.2 3.0 2.4 1.8 1.4
      mesh 600 800 1250 2000 2500
    Size distribution: D97 um 30 25 20 15 9
    Size cut um 80 48 38 28 18
    Moisture % < 0.3 < 0.3 < 0.3 < 0.3 < 0.3
    Power KW/Ton 38~40 40~50 47~53 50~53 110~125
    Test method

    1. Size distribution: The data is based on MALVERN company's MALVERN3000 laser winding particle size analyzer.
    2. Blaine: Transfer from size distribution, unit is a relative area of 1 g of powder
    3. Mean diameter: derive from size distribution
    4. 325mesh residue: 1000 g sample was placed on a 325 mesh screen by wet method,
    5. Moisture: 5 g of the sample was measured at a moisture analyzer at 6℃ for 6 minutes
    6. Grinding material: limestone, calcite, dolomite, talc, barite, wollastonite, brucite, calcium hydroxide, gypsum, coking coal, slag, phosphate and so on.

  2. Assessment items Ultrafine ground calcium carbonate
    Capacity t 13.0~17.0 11~13 9.0~10.0 7.0~8.0
    Blaine cm2/g 11000±500 13500±500 15000±500 17000±500
    325mesh residue % 0.015 0.015 0.01 0
    <2um % 34 38 46 53
    Mean diameter: D50 um 4.2 3.0 2.4 1.8
      mesh 600 800 1250 2000
    Size distribution: D97 um 30 25 20 15
    Size cut um 80 48 38 28
    Moisture % < 0.3 < 0.3 < 0.3 < 0.3
    Power KW/Ton 38~40 40~50 47~53 50~53
    Test method

    1. Size distribution: The data is based on MALVERN company's MALVERN3000 laser winding particle size analyzer.
    2. Blaine: Transfer from size distribution, unit is a relative area of 1 g of powder
    3. Mean diameter: derive from size distribution
    4. 325mesh residue: 1000 g sample was placed on a 325 mesh screen by wet method,
    5. Moisture: 5 g of the sample was measured at a moisture analyzer at 6℃ for 6 minutes
    6. Grinding material: limestone, calcite, dolomite, talc, barite, wollastonite, brucite, calcium hydroxide, gypsum, coking coal, slag, phosphate and so on.

  3. Assessment items Ultrafine ground calcium carbonate
    Capacity t 14.0~19.0 12.5~14.5 10.0~11.0
    Blaine cm2/g 11000±500 13500±500 15000±500
    325mesh residue % 0.015 0.015 0.01
    <2um % 34 38 46
    Mean diameter: D50 um 4.2 3.0 2.4
      mesh 600 800 1250
    Size distribution: D97 um 30 25 20
    Size cut um 80 48 38
    Moisture % < 0.3 < 0.3 < 0.3
    Power KW/Ton 38~40 40~50 47~53
    Test method

    1. Size distribution: The data is based on MALVERN company's MALVERN3000 laser winding particle size analyzer.
    2. Blaine: Transfer from size distribution, unit is a relative area of 1 g of powder
    3. Mean diameter: derive from size distribution
    4. 325mesh residue: 1000 g sample was placed on a 325 mesh screen by wet method,
    5. Moisture: 5 g of the sample was measured at a moisture analyzer at 6℃ for 6 minutes
    6. Grinding material: limestone, calcite, dolomite, talc, barite, wollastonite, brucite, calcium hydroxide, gypsum, coking coal, slag, phosphate and so on.

Product Features

Ultrafine Vertical Mill VS Ball Mill

Service ZENITH Can Offer

Global Distribution of Branch Offices & Overseas Offices

Customer Case

Vietnam a paper mill

The process is presented in accordance with the standard process or layout

Working condition

The customer using our 1232 ultra-fine grinding mill rather than original purchased powder, greatly improving product stability. The particle size analysis shows product particle size distribution is narrow and fine powder content (2UM up to 30%) without any secondary pollution, greatly enhance the quality of the product. Customers in a year to recover all the investment costs. winning highly praise from users.