3T/H DR-28 Ring Roller Mill Grinding Plant for Calcium Carbonate Processing in Minya, Egypt, 2026
Project Overview
In March 2026, Daswell Powder Tech. completed the installation and commissioning of a DR-28 ring roller grinding mill plant in Egypt.
It is one of the largest ground calcium carbonate producer. The project is located in Minya, an important calcium carbonate production region in the country.
Project Information
This grinding system is designed to process calcium carbonate raw materials and produce fine powder with a fineness of D97=10μm. It can achieve a production capacity of 3 tons per hour. Our resident engineer in Egypt, Mr. David helps our customer install and commission the systems, ensuring smooth startup and stable system operation.
Advantages of Our DR-28 Ring Roller Grinding Plant for Calcium Carbonate Powder Solution
This DR-28 ring roller grinding mill machine is particularly suitable for producing 10-20 micro ultra-fine calcium carbonate powder. Compared with the traditional ball mill systems, this grinding solution offers significant advantages:
Lower investment cost for production line setup
Around 35% lower power consumption compared with ball mill systems at the same output
Stable grinding performance and reliable long-term operation
Compact system layout and easy installation
Reliable operation with low maintenance
Whether for the new GCC powder producer or existing plants looking to expand their grinding capacity, our ring roller mill plant is an ideal solution.
Calcium Carbonate Ring Roller Grinding Process Flow
The calcium carbonate ring roller grinding plant adopts a dry grinding and classification process, ensuring stable particle size distribution and efficient powder production.
The main production process includes:
Raw Material Feeding
Calcium carbonate raw materials, such as limestone, marble, or calcite, are transported to the feeding system and evenly fed into the grinding mill to ensure stable operation.
Grinding
The material enters the DR-28 ring roller grinding mill, where grinding rollers and the grinding ring generate strong compression and shear forces to grind the raw material into fine powder.
Classifying
The ground powder is carried by airflow into the built-in classifier. Qualified fine powder is separated and collected, while coarse particles return to the grinding chamber for further grinding.
Pneumatic Conveying
Qualified powder is transported through the pneumatic conveying system to the finished product silo.
Dust Collecting
A high-efficiency dust collector captures fine dust during production, ensuring a clean working environment and minimizing powder loss.
Powder Packing
The final calcium carbonate powder is stored in the product silo and packed by an automatic powder packing machine for storage and transportation.
Long-term Cooperation with the Customer
This Egyptian customer has maintained a long-term partnership with Daswell Powder Tech. The cooperation began in 2015, when the customer purchased their first calcium carbonate ball mill production line from us.
Over the past 10 years, the customer has purchased our grinding systems five times, demonstrating strong trust in our technology, equipment reliability, and service support.
During the commissioning process, Mr. Gamal, the electrical engineer of the customer’s company, expressed high satisfaction with both the performance of the equipment and the professionalism of our engineering team.
Proven Performance of Daswell Powder Tech. in the Egyptian Market
Our ring roller grinding mills have been operating in the Egyptian calcium carbonate industry since 2015. Over the past 16 years, more than 20 calcium carbonate producers in Egypt have installed and operated our ring roller grinding mills.
Our ring roller grinding mill machines are known for their stable operation, high efficiency, and energy-saving performance. In many projects, customers have reported higher production output with the same power consumption compared with other grinding equipment. As the electricity costs continue to rise globally, this energy-efficient grinding technology helps powder manufacturers significantly reduce operating costs and improve competitiveness.
Why Choose Daswell Powder Tech.?
Since entering the ultrafine powder processing industry in 2009, Daswell Powder Tech. has focused on providing customized complete solutions for mineral powder producers.
With 17 years of mineral powder processing systems experience, we have delivered numerous powder processing plants worldwide and earned excellent feedback from customers across the global mineral processing industry.
Our goal is to help customers gain competitive advantages through:
If you are planning a calcium carbonate or ultrafine powder production project, feel free to contact Daswell Powder Tech. for a customized grinding solution.
