The three-roller coating machine offers distinct advantages across multiple dimensions, including coating quality, production efficiency, energy consumption, equipment adaptability, and environmental performance. These benefits result from the unique three-roller structure combined with high-speed mixing technology, which work synergistically for optimal powder modification.
High Coating Quality
The three-roller design ensures multiple stages of dispersion and shearing, which produce an even and uniform coating on the powder surface. This uniformity helps avoid common issues like streaking or localized thick spots usually faced with traditional two-roll systems. For example, in calcium carbonate coatings, using only 0.4% to 1.4% modifier in ground calcium carbonate (GCC) and about 5% modifier in precipitated calcium carbonate (PCC) can still yield a high coating rate exceeding 95%.
In addition to visual uniformity, this coating significantly enhances powder properties. It lowers viscosity, improves dispersibility, and strengthens the mechanical interface between particles. For instance, silica treated with the three-roller method demonstrates over a 30% improvement in dispersion stability, making it highly suitable for demanding applications like silicone rubber and specialty coatings.
High Production Efficiency
Designed for industrial-scale production, the three-roller coating machine supports continuous, 24/7 operation. Depending on the model, it can handle processing capacities ranging from 500 to 7,500 kilograms per hour. For instance, the CRM-9 model achieves between 2,000 and 7,500 kg/h, making it well suited for high-throughput manufacturing environments.
Moreover, the machine integrates seamlessly with other processing equipment — such as ultra-fine grinders and classifiers — to form a streamlined production line covering everything from grinding to surface modification. This integration reduces intermediate handling and boost overall efficiency.
Low Energy Consumption
A key energy-saving feature is the self-generated friction heat created by the high-speed movement of the rolls and powder materials. This heat eliminates the need for external heating systems, allowing power consumption to drop to as low as 30 kWh per ton. This translates to over 40% energy savings compared to conventional powder coating machines.
The three-roller structure also reduces inter-roll pressure, minimizing wear and tear on the equipment and the risk of clogging. These design improvements contribute to lower entretien costs, reducing them by 25% to 30%.
Strong Equipment Adaptability
The machine’s versatile design can process powders ranging from 325 mesh down to nanoscale sizes. It accommodates a wide variety of materials, including non-metallic minerals such as calcium carbonate, kaolin, talc, mica, graphite, barium sulfate, and silica. It also effectively processes chemical raw materials like magnesium hydroxide, zinc oxide, and alumina.
Flexible in processing methods, the machine can perform dry surface modification with both solid and liquid modifiers. These include stearic acid, aluminate coupling agents, titanate coupling agents, and silane coupling agents, allowing customization across industries. For example, modified calcium carbonate fillers enhance mechanical strength and surface smoothness in the plastics industry, while improving leveling and weather resistance in coatings.
Excellent Environmental Performance
The three-roller coating machine incorporates a rear negative pressure collection system, which captures finished powder products and prevents dust from escaping into the workplace environment. This ensures compliance with national environmental standards and promotes a safer working atmosphere.
Thanks to an integrated dispersing function, the machine prevents particle agglomeration in the modified powder. It enables direct packaging without the need for secondary screening. This reduces the risk of secondary contamination and lowers overall process complexity.
Typical Application Examples
• Calcium Carbonate Coating: The three-roller coating machine can achieve GCC product fineness ranging from 325 to 3,000 mesh. The coating rate of 95%. This modification increased the activation index by 50%. When the modified filler was used in PVC plastics, the filler loading increased by 20%, reducing costs by about 15%.
• Silica Modification: In the silicone rubber industry, silica treated with the three-roll method showed significantly improved dispersibility. This resulted in a 30% increase in tensile strength and a 25% enhancement in tear resistance in the final silicone rubber products.
Poudre épique
With its capabilities for delivering uniform coatings, high production throughput, energy efficiency, equipment flexibility, and clean environmental performance, the three-roll coating machine is now widely favored across industries.
As a well-established brand in the industry, Machines à poudre Epic is committed to customer-centricity, quality, and innovation. We are your reliable partner for long-term success. Choose Epic Powder for efficient, energy-saving, and environmentally friendly powder processing solutions! Contact us to learn more about our products!
