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Chaeng home > Product > Vertical Roller Mill > Vertical Raw Mill

Vertical Raw Mill

Capacity: 30-720 t/h

Power: 17-20 kWh/t

Finished fineness: 80 μmR 12-15% 

Application: cement raw materials grinding in cement plant

Process introduction

Cement raw material includes limestone, gypsum, silica, clay, fly ash and other ingredients. In the process of cement production in a cement plant, the raw material needs to be ground through grinding equipment before being calcined. 

Vertical raw material mill is an important equipment widely used in the grinding section of cement raw meal (cement raw material) in the cement production process in cement plant. CHAENG manufactures cement raw material grinding mills with various specifications.

The GRMR Vertical Raw Mill of CHAENG is a kind of high efficiency, energy saving and environment friendly grinding equipment specially for cement raw material grinding system in cement plant. It has the advantages of high grinding efficiency, low power consumption, low noise, and little dust pollution, can meet the requirements of 300-10,000 TPD cement production line.

raw material vertical roller mill

When it works, raw materials are fed in evenly by the feeder at the bottom of the hopper, then lifted to appropriate height by the bucket elevator, then sent into the mill through feeding pipe, the ground materials are brought into the powder classifier by the hot air generated by the hot air stove, at the same time, the materials are dried and classified, the unqualified materials fall down to be regrind, qualified fine powders are sent into powder collector, and then transported to the storage by the conveyor.


Model Grinding Table Diameter (mm) Standard Ability Q (t/h) Motor (kW)
GRMR22  2,200 65-75 710
GRMR24  2,400 75-85 800
GRMR26 2,600 85-95 900
GRMR28 2,800 100-110 1000
GRMR30 3,000 110-120 1120
GRMR33 3,300 140-150 1400
GRMR36 3,600 180-190 1800
GRMR38 3,800 200-210 2000
GRMR40 4,000 230-250 2240
GRMR43 4,300 260-280 2500
GRMR46 4,600 330-350 3150
GRMR48 4,800 350-370 3350
GRMR50 5,000 370-400 3550
GRMR53 5,300 440-470 4200
GRMR56 5,600 470-500 4500
GRMR60 6,000 550-600 5300
GRMR65 6,500 670-720 6300
GRMR70 7,000 850-900 8000

Note: mill spectral pattern benchmark

(1) Material medium friction (MFs)=0.9~1.0;

(2) Material moisture max 15%;

(3) Refined powder granularity 4200~4500 cm²/g;

(4) Refined powder moisture 0.5~1.0%;

(5) The concrete mill installed power and technology parameter will be adjusted appropritely basing on the actual material property and requirements of owner;


The raw vertical mill of CHAENG has stable operation, high output and convenient replacement of parts. It has been recognized and purchased by customers in South Asia, Africa and other markets:

1. A 5000t/d cement production line EPC turnkey project in South Africa adopts GRMR53.41 raw material vertical mill of CHAENG.

2. A 5000t/d cement production line in Henan, China adopts GRMR53.41 raw material vertical mill of CHAENG.

raw material vertical mill price

5000t/d cement production line of Henan Meng Electric Group adopts GRMR53.41 raw material vertical mill of CHAENG.


1. High grinding efficiency and low power consumption

The power consumption of raw material vertical mill system is 9.7Kwh/t lower than ball mill, that is to say: in one year, a 5000TPD cement plant can save energy in clinker grinding system: 9.7kWh/t * 5000t/d * 300d=14,550,000 kWh, that means the cement plant clinker grinding system can save 14,550,000 kWh electricity one year.

2. Remarkable energy-saving and environmental protection, convenient maintenance

The system is in the state of negative pressure, no dust runs out and environment is clean, meeting the national environmental protection requirements. With the roller turning device, you can easily turn grinding roller out of the grinding mill for overhaul.

3. Original spare parts to reduce maintenance worries

Grinding rollers, rocker arms and other spare parts in the whole system are manufactured by CHAENG originally, ensuring the quality and greatly reducing the customer's worries of no where to find the spare parts.

4. Low noise, little dust pollution

When the vertical mill is running, the vibration is small, so the noise is low; the grinding system is integrally sealed, there is no dust leakage, and the dust pollution is small.

Auxiliary Equipment

Vertical Roller Mills Vertical Roller Mills
GGBS Production Line GGBS Production Line
Cement Grinding Plant Cement Grinding Plant
Cement Production Line Cement Production Line
Vertical mill rocker arm Vertical mill rocker arm
Grinding Roller Grinding Roller

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