LM Vertical Grinding Mill

LM Vertical Grinding Mill

Based on the absorption of advanced technologies of famous international corporations and 30 years’ experience in grinding mill production, SBM has launched the LM Vertical Grinding Mill which integrates five functions of crushing, grinding, powder selection, drying and material conveying. It is characterized by centralized technological process, small occupational area, low investment, high efficiency, energy conservation and environment protection.

Product Features: Integration of multiple functions, more stable and reliable production and more excellent capacity
  • Input Size: 0-70mm
  • Capacity: 3-340TPH
  • Material: Limestone, calcite, dolomite, petroleum coal, gypsum, barite, marble, talc, coal powder, etc.


Less Comprehensive Investment

LM Vertical Grinding Mill integrates crushing, drying, grinding, separating and transport. The structure is simple while the layout is compact. Its occupational area is about 50% of that of the ball-milling system. The LM grinding mill can also be arranged outdoors, which greatly reduces the investment cost.

Comprehensive Optimization, Lower Operating Costs

From aspects of grinding efficiency, powder drying, abrasion of vulnerable parts and maintenance & replacement of spare parts, SBM’s LM Vertical Grinding Mill achieves lower energy consumption, stronger drying capacity, as well as lower abrasion and easier checks of core parts, saving the operating costs greatly.

Short Grinding Time & Low Iron Content

The materials linger in the grinding mill for a short time, which can reduce repeated grinding and is easy to detect and control the grain size and chemical component of the product. In addition, the grinding roller and millstone do not contact directly. The iron content in the product is very low, and the iron generated due to mechanical wear is easy to be removed, thus effectively guaranteeing the whiteness and purity of the material.

Greener & More Automated

The operation of LM grinding mill is stable and has small vibration, so that the noise is small. The system is sealed in an integral manner and works under negative pressure, so that there is no dust spilling and the environment can keep clean with the emission standard far better than the international standard. LM grinding mill is also equipped with expert-level automatic control system, which can realize free switch between remote control and local control. The operations are simple and labor-saving.

Digitalized Processing, Higher Precision

There are tens of lines of numerical controlling machine tools. Operations such as steel plates’ cutting, bending, planing, milling and paint spraying are all controlled numerically. The machining precision is high, especially for the core parts.

Sufficient Supply of Spare Parts, Worry-free Operation

SBM, whose businesses cover production and sales, takes responsibility for every machine produced by ourselves. We can offer customers technical services about products and original spare parts to ensure the worry-free operation.

Working Principle

The grinding plate rotates under the action of main motor of LM Vertical Grinding Mill and the reducer. Meanwhile, hot wind enters the vertical mill. After raw materials fall onto the center of grinding plate, they move to the edge of grinding plate under the action of centrifugal force. While passing through the grinding area between roller and grinding plate, bulky materials are broken directly by the pressure of roller while fine materials form a layer where materials crush each other. Broken materials after grinding continue moving to the edge of grinding plate until they are brought away by the airflow at the air ring. For coarse materials which cannot be brought away would fall onto the grinding plate for another grinding. When passing the upper separator, materials in the air flow will be divided into two parts by the blades of rotor, that is, coarse particles and fine powders. Coarse particles would be sent back to have another grinding while the qualified fine powders enter the powder collector with airflow as finished products. For sundries like iron block in materials, when they move to the fringe of grinding plate, because of their heavier weight, they would drop to the lower cavity of grinding mill and next be sent into the discharging port by scarper installed at the bottom of grinding plate and finally be discharged out of the grinding mill.

Product Parameters

Vertical Mineral Mill Series

Models and parameters Vertical Mineral Mill Series
LM130K LM150K LM170K LM190K LM220K LM280K
Plate diameter (mm) 1300 1500 1700 1900 2200 2800
Capacity (t/h) 10-28 13-38 18-48 23-68 36-105 50-170
Output fineness μm 170-40 170-40 170-40 170-40 170-45 170-45
Mesh 80-400 80-400 80-400 80-400 80-325 80-325
Max feed size(mm) <38 <40 <42 <45 <50 <50
Main motor (kW) 200 280 400 500 800 1250


Vertical Coal Mill Series

Models and parameters LM80M LM110M LM130M LM150M LM170M LM190M LM220M LM240M LM280M
Plate diameter (mm) 800 1100 1300 1500 1700 1900 2200 2400 2800
Grinding roller (piece) 2 2 2 2 2 2 2 3 3
Capacity (t/h) 3~5 5~9 10~17 16~22 20~30 26~40 35~50 50~65 60~90
Coal powder fineness (R0.08mm) 5~20% 5~20% 5~20% 5~20% 5~20% 5~20% 5~20% 5~20% 5~20%
Max feed size(mm) <30 <30 <38 <40 <42 <45 <50 <50 <50
Main motor (kW) 55 110 185 250 315 400 500 710 900


Vertical Slag Mill Series

Models and parameters LM130N LM150N LM170N LM190N LM220N LM280N LM370N
OD of Turnplate(mm) 1700 1900 2100 2400 2800 3500 4500
Moisture of Scoria <15%
Output fineness Specific Surface Area≥420m²/kg
Moisture of Powder ≤1%
Capacity (t/h) 4~6 6~8 8~10 10~12 20~26 50~60 90~110
Main motor (kW) 200–250 280–315 400–450 500–560 900–1000 1800–2000 3150–3300

NOTE: The Bond Index of scoria is ≤23kWh/t, and the iron content is ≤1%.


Vertical Fine-powder Mill Series

Models and parameters LM130X-GX LM150X-GX LM170X-GX LM190X-GX LM220X-GX
Plate diameter (mm) 1300 1500 1700 1900 2200
Grinding roller (piece) 3 3 3 3 3
Max feed size(mm) 10 20 20 20 20
Output fineness (D97) 325~600 mesh 325~600 mesh 325~600 mesh 325~600 mesh 325~600 mesh
Capacity (t/h) 4~12 6~14 8~20 13~26 15~30
Powder classifier (kW) 45 55 75 90 110
Main motor (kW) 220 280 400 500 560


Vertical Pre-grinding Mill Series

Models and parameters LM150Y LM170Y LM190Y LM250Y LM340Y
Plate diameter (mm) 1500 1700 1900 2500 3400
Grinding roller (piece) 2 2 2 3 3
Max feed size(mm) 20 20 20 20 20
Feed Capacity (t) 15~25 25~40 35~50 80~120 200~250
Output fineness 1 (R0.08mm) ≤15% ≤15% ≤15% ≤15% ≤15%
Output capacity 1 (t/h) 6~10 10~16 14~20 32~48 80~100
Output fineness 2 (R0.2mm) ≤5% ≤5% ≤5% ≤5% ≤5%
Output capacity 2 (t/h) 9~15 15~24 21~30 48~72 120~150
Mill cycle throughput (t/h) 60~100 100~160 140-200 320-480 800-1000
Main motor (kW) 280 450 560 1400 2500



Product pictures and parameters about models, data, performances and specifications on this website are for reference only. There is a chance that SBM may make changes on above-mentioned information. For specific messages, please refer to the real objects and user manuals. Without special instructions, SBM keeps the right to explain all data involved in this website.

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