Two Complete GCC Grinding Production Lines with DR-28 and DR-34 Ring Roller Mills Installation in Egypt, 2026
Project Overview
Daswell Powder has completed the installation of two complete calcium carbonate grinding production lines for two customers in Egypt.
These two projects adopt different ring roller grinding mill configurations according to the customers’ different production requirements.
Project Information
One production line is equipped with two DR-28 ring roller mills. And the other uses two DR-34 ring roller mills. Both of them are designed for fine GCC powder production. The calcium carbonate powder fineness is adjustable with approximately D97 8–45 μm.
Calcium Carbonate Grinding Line with Two DR-28 Ring Roller Mills
According to the customer’s requirements, we recommended the GCC grinding line with two DR-28 ring roller mills as the main grinding equipment. The main project requirements include:
Our DR-28 ring roller grinding line can meet the customer’s requirements for flexible GCC powder production.
With the built-in classifier, the qualified ground calcium carbonate can be separated and collected efficiently. And the oversized particles return to the grinding chamber for further processing.

This complete production line includes material feeding, grinding, classification, powder collection, conveying, storage, and packing sections. By adjusting the grinding and classifying parameters, the customer can produce different calcium carbonate powder specifications according to market demand.

Calcium Carbonate Grinding Line with Two DR-34 Ring Roller Mills
This customer required a higher-capacity GCC production solution. Thus, we configured another complete calcium grinding line with two DR-34 ring roller mills. The main project information includes:
The DR-34 provides a higher processing capacity than the DR-28 mill. It is more suitable for larger-scale calcium carbonate powder grinding.

The actual output of the whole production depends on factors such as the target fineness, raw material properties, feed conditions, classifier settings, and overall system configuration.


What is Complete Ring Roller Grinding Process?
Typical process includes: Feeding → Ring Roller Grinding & Built-in Classifying → Powder Collection → Pneumatic Conveying → Storage → Packing
This closed-circuit production process helps maintain stable particle size and continuous operation. For these two projects, the equipment layout and production process are customized according to the customers’ plant conditions and production requirements.
Complete Installation and Local Service in Egypt
Egypt has been an important market for Daswell Powder for many years. We have supplied calcium carbonate crushing, grinding, classifying, coating, and packing equipment for many local mineral powder producers.
Whether for the ring roller grinding line or ball mill line for calcium carbonate powder grinding, we have local service capability. Our engineers can provide on-site support for equipment installation, commissioning, and operations.

For these two projects, our technical team completed equipment positioning, system connection, and installation according to the planned production layouts.
After installation, our engineer can carry out commissioning and production testing and optimize the operating parameters according to the required powder fineness and actual production conditions.
This helps ensure stable system operation and suitable production performance for the customers’ requirements.
Getting Your Customized GCC Grinding Solution from Daswell Powder
Daswell Powder has rich experience in non-metallic mineral powder grinding, especially for calcium carbonate.
Different calcium carbonate producers have different requirements for powder fineness, production capacity, plant layout, and final applications. Daswell Powder designs complete powder processing lines rather than supplying a single grinding machine.
Our calcium carbonate solutions can cover:
From raw material preparation to finished powder packing, Daswell Powder can provide complete and customized GCC production solutions. If you are planning to build or expand a calcium carbonate grinding plant, contact us with your raw material, target fineness, and required capacity. We can recommend a suitable complete production line for your project.



