About Cement Clinker Grinding Unit Everything You Should Know Here

The clinker grinding unit is the mechanical equipment needed in the final process of cement manufacturing, and this process usually consumes the most electricity. This article mainly focuses on cement clinker grinding and its equipment(unit), and how to use it to save electricity. After all, saving electricity is equal to saving money!

What is Clinker?

Clinker refers to a dark, hard, and granular material that is produced by heating a mixture of limestone, clay, and other minerals in a kiln at very high temperatures. It is the main ingredient used in the production of cement.

Clinker is a critical component in the manufacturing of cement, as it provides the necessary chemical properties required for the cement to set and harden.

cement clinker

Cement clinker manufacturing process

During the process of heating the raw materials in the kiln, the mixture undergoes a series of chemical reactions that result in the formation of small, hard nodules called clinker. The clinker is then cooled and ground into a fine powder, which is mixed with gypsum and other additives to make cement.

Clinker Consumption for 1 Ton of Cement

The amount of clinker typically used to produce 1 ton of cement varies, but it is generally around 0.95 tons of clinker per ton of cement. This can vary depending on the specific type of cement and the production process used.

Clinker Grinding Unit Application

The main application of a clinker grinding unit is in the production of cement. After the clinker is ground, then it is mixed with gypsum and other additives to produce the final product, which is Portland cement. Portland cement is the most common type of cement used in construction and is used to make concrete, mortar, and grout.

In addition to cement production, clinker grinding unit can also be used to grind other materials, such as slag, pozzolana, and fly ash, which can be used as supplementary cementitious materials in the production of blended cements.

Types of Clinker Grinding Unit

SCM Ultrafine Mill

SCM Ultrafine Mill

Product Features: Ultrafine powder, wide applications, excellent environmental effect

ball mill

Ball Mill

grinding material with high hardness, stable performance easy installation

Clinker Grinding Unit Plant Case

Cement Grinding Line

Cement Clinker Grinding Unit Plant in China Shanxi
Equipment: SCM1250 Ultrafine Mill, screw conveyer, powder packaging machine, pneumatic conveyer and so on
Material: Sulphate-aluminium cement clinker, Portland cement, Metakaolin, Lime, Gypsum, etc
Input Size: <1mm
Output Size: 1250mesh D90
Moisture: <5%
Application: Slip-casting &filling material

Reducing Energy Consumption in Clinker Grinding

According to the 2009 Cement Plant Operating Costs announcement, cement producers face a significant increase in energy costs, currently consuming an average of 100-200 kWh of electricity per ton of cement and increasing day by day.
Many cement producers have been able to reduce energy costs by more than 30% by adopting a comprehensive industrial energy management approach. According to controleng.com, there are several tools that can help businesses reduce energy consumption:

  • Power and Energy
  • Management Systems
  • variable frequency drive
    Model Predictive Control System
  • Energy assessment.

Also, if you can reduce energy consumption at the root (i.e. from the clinker grinding unit), the reduction in overall electricity consumption will be even more pronounced.


In conclusion, a clinker grinding unit plays an important role in the cement production process, but it also faces several severe challenges related to equipment maintenance, waste generation and environmental impact. 

By understanding all aspects of clinker grinding, we can develop more sustainable and efficient cement manufacturing processes. Our business will get richer returns, and human beings and nature can develop together.