cement ball mill for sale

Cement Ball Mill

Feeding Size: ≤25 mm

Milling Capacity: 20 – 130 t/h

Gross Weight: 106 – 310 t

Application: grinding and milling of cement clinker, raw meal, etc.

AGICO Cement Ball Mill

As a professional cement equipment manufacturer, AGICO CEMENT has been engaged in the technical research, development, and manufacturing of large cement machinery for many years, and has built a mature production system and excellent technical reserves. AGICO cement ball mills have a wide range of models, with a maximum output of 130 tons per hour, which can meet the production needs of large, medium, and small cement manufacturers.

Based on the grinding system used by customers, we can customize and optimize the ball mill. Whether it is an open-circuit grinding system, a closed-circuit grinding system, or a combined grinding system with a roller press, our talented engineer team will make a  reasonable design according to user needs, and present the fittest ball mill to our clients.

If you need more than a cement ball mill to start your business, AGICO also designs and builds complete cement grinding stations. Please feel free to contact us for a project quotation.

Notable Features

Advanced Equipment, High Processing Accuracy

Our factory is equipped with international advanced processing equipment such as the heavy digital display horizontal lathe, which can process high-precision ball mill cylinders, ensure the out-of-roundness and concentricity of slip ring processing, and minimize the error.

Scientific Supporting Method

AGICO cement ball mill is supported by static and dynamic bearings at both ends, greatly simplifying the support foundation and reducing the installation height; the mill can also be supported by static and dynamic pressure of single sliding shoe and double sliding shoe or by full static pressure.

International Proven Design Standards

The girth gear is designed according to the latest U.S. AGMA standard and equipped with a gear guard with reliable sealing, and equipped with a glycerin automatic spray lubrication device; The control and protection system is controlled by PLC.

Highly Durable Liners & Easy Maintenance

The internal liners and intermediate diaphragm of the ball mill are made of high chromium alloy steel, which is solid, wear-resistant, and has a long service life. Each grinding compartment of the ball mill is provided with a manhole, which is convenient for personnel to overhaul the inside of the mill.

Product Parameter

Specification (m)Rotation Speed (r/min)Grinding Media Load Capacity (t)Capacity (t/h)Motor ModelMotor Power (kW)Reducer ModelWeight (t)
Φ4.2×13*15.623090 (closed-circuit)YRKK900-83550JB150-B1254
Φ4.6×13*14.9270120 (closed-circuit)YRKK1000-84500JST160292
Φ4.6×14*14.9300130 (closed-circuit)YRKK1000-84800JST160310

Cement Ball Mill Structure & Working Principle

The cement ball mill is mainly composed of a horizontal cylindrical shell, feeding & discharging hollow shafts, liner plates, and grinding media. The mill body is a long cylinder, with many grinding balls inside. The cylinder is made of steel plates, and the inner part of the cylinder is fixed with ball mill liners; the grinding balls are steel balls with different diameters, which are installed into the cylinder in a certain proportion. There are also ball mills that use steel segments or steel rods instead of steel balls as grinding media.

Length Diameter Ratio

The length-diameter ratio of the cement ball mill is relatively large. For mills of open-circuit grinding system, the length-diameter ratio is usually between 3.5 and 6 to ensure that the product fineness is qualified through single grinding; For ball mills in closed-circuit grind system, in order to increase the material flow rate, the length-diameter ratio should be between 2.3 and 3.5.

Grinding Compartment

A cement ball mill is generally divided into two or three grinding compartments. The larger the length-diameter ratio of the ball mill is, the more compartments there are. For dry ball mills used in the closed-circuit grinding system, when divided into two compartments, the first compartment length accounts for 30% – 40% of the total length, and the second accounts for 60% – 70%; When divided into three compartments, the first one accounts for 25% – 30% of the total length, the second one accounts for 25% – 30%, and the third one accounts for 45% – 50%.

cement ball mill structure

Working Principle

Take the closed-circuit double bin cement ball mill as an example. Through the feeding device of the ball mill, the cement clinkers are fed into the first grinding compartment, in which they are impacted and crushed to a certain size by the grinding balls with a larger average diameter, and then enter the second compartment through the intermediate diaphragm. The grinding media in the second compartment have a smaller average ball diameter, and the material is further ground by them. The milled materials are discharged from the lower outlet of the discharging device through the discharge grate plate, and then sorted by the matched cement separator. The coarse materials are re-fed into the mill to continue grinding. The qualified fine powder is discharged as finished cement.

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