1. Diversity of raw material : magnetite and hematite concentrate can be used as raw material.
2. Pellets can be roasted evenly.
3. Grate-kiln system is with significant production capacity, which can reach as high as 500mt/yr.
4. Grate-kiln equipments manufactured by Hongda have been made lots of successful improvements, which is with long service life and can produce high-strength and best-size pellet.
5. High pellet quality: high iron content, good metallurgical property, suitability for long time storage and long distance transportation etc.
Research shows that quality coefficient of pellet from grate-kiln process is 91.3, higher than travelling grate machine 90.8.