Three-roller Mill
- Realize powder surface modification by changing inner vortex with three rotating rotors.
- Mature technology, low investment, suitable for stearic acid coating.
- Self-friction generates heat, no heating device is needed, less auxiliary machine, and low operating cost.
- Suitable for powder coatings of 325~1250 mesh.
- Power range: 11kW~225kW; Maximum output: 6t/h.
- Disadvantages:
- The air volume is small, the dispersibility is poor, especially the fine powder, and the amount of modifier is large.
- Self-friction heat generation is easily affected by environmental factors, and the modification temperature is poorly controllable.
- There is a dead zone and the coating rate is low.
Features and Advantages
Wide Range of Applications
The ideal coating effect can be achieved for various inorganic mineral powders.
High Coating Efficiency
The highest cladding ratio or coating effect is achieved with minimal coating material or cost.
High Automation
The entire system is easy to operate, high efficiency and low cost.
Flexible Production Process
According to material characteristics and customer request, a continuous production process or
a batch production process can be selected.
Rich equipment selection
Has variety of options for different processes.
Customizable Solution
Provide technical consultation and personalized solutions for coating process according to
material characteristics and product use.
Working Principle
Coating mechanism
1. The basic principle of coating: obtain the highest coating rate or coating effect with the minimum coating material or cost;
2. Surface coating of mineral fillers, the main functions include dispersion, viscosity reduction, filling, and interface
mechanics;
3. The most commonly used coating methods are: surface chemical coating method, coated coating method, mechanical force chemical
coating method;
4. The coating methods mainly include: coating mechanism, modifier, coating process and equipment, process control, product testing and evaluation;
5. If the purpose, method and modifier of the coating are different, the process and equipment are also different.
Basic Process Requirements
1. The modifier uses dilution, emulsification, spray addition and other measures to improve the dispersion, preferably continuous spray or drip with the continuous feeding of the powder;
2. Precision metering and uniform feeding of modifier and materials to ensure the instantaneous precision of the ratio of the two, to achieve uniform and firm coating of the modifier on the surface of the powder, good controllability and stable product quality;
3. The regulation of the temperature and time of the system should meet the requirements of the coating mechanism or the modifier on the process conditions, and ensure the sufficiency of the coating reaction;
4. the equipment operating conditions are good;
5. The use of auxiliary equipment (deagglomerator or classifier), environmental factors (temperature, humidity), etc.
Technical Parameters
| Model / Production Capacity / Particle Size |
CUM-P200 |
CUM-P400 |
CUM-P630 |
CUM-P800 |
| D97:5um |
300kg/h |
700kg/h |
1800kg/h |
3000kg/h |
| D97:10um |
500kg/h |
1300kg/h |
3300kg/h |
5800kg/h |
| D97:15um |
600kg/h |
1600kg/h |
4000kg/h |
7200kg/h |
Note: The above data is exemplified by the coating of calcium carbonate GCC.
Related Engineering Case
Shandong ALPA Powder Technology Co., Ltd.
(abbreviation: ALPA / Equity Code: 171033)
THE WORLD'S LEADING SUPPLIER OF
ULTRA-FINE POWDER SOLUTIONS
ALPA is a world-renowned supplier of powder processing systems, committed to traditional powder industry development. For 20 years, focused on the research and development of dry grinding, classification, powder shaping, surface modification and provided systematic solutions. We provide customized and international certified products: Jet Mill, Air Classifying Mill, Classifier, Ball Mill and Classifying production line, powder surface modification production line, etc.
Certification Authority
ALPA is one of the earliest companies in the industry that passed the ISO9001 quality management system authority certification. At the same time, ALPA has free import and export rights, and has obtained CE certification for export to the European Union and GOST certification for export to Russia. The machine design used in the medical industry fully meets the requirements of GMP certification.
Who Choose ALPA
37 world top 500 companies, 89 Chinese top 500 companies, 169 national key laboratories and
engineering technology research centers have selected ALPA.
More than 3,000 customers have chosen us
About Our Equipment
ALPA can provide dry ultrafine grinding equipment suitable for various materials
Impact mill
High efficiency, has two milling effects of impact and grind, large milling ratio, simple structure, stable operation, suitable for milling medium-soft hard materials.
Jet mill
Uses the high speed turbulence airflow generated by compressed air or superheated steam as milling power. Impact extrusion, friction and shear between the particles or between the particles and the fixed plate occur, so as to achieve milling.
Ball mill + Classifying
The ball mill and classification production line refers to a complete set of milling system composed of Ball mill, cyclone, dust collector and fan.
Q: What service do you supply?
A: 1). We offer consultancy for project feasibility assessment, process flow definition, preliminary layout and factory building plan, project budget, project time schedule, etc.
2). We supply sample processing tests in our test station where are equipped with our various machine products, to help clients compare performances of different types of machines or process.
3). We supply project engineering, automation engineering and civil engineering.
4). We send engineers to the clients' project site and offer on-site technical instruction and supervision during the machine installation, commissioning and test run.
Q:How can I trust on your quality?
A: 1). All of the machine be tested successfully in Weifang workshop before shipment.
2). We supply one year warranty for all equipment and lifelong after-sales service.
3). We can test your material in our equipment before place the order, to ensure our equipment is suitable for your project.
4). Our engineers will go to your factory to install and debug the equipment, they will not be back until these equipment can produce qualified products.
Q:Does your company provide Engineers Abroad Service?
A: Sure, we provide it. And we can provide free training for on-site workers.
Q:How to train our staff about operation and maintenance?
A: We will provide detailed technical instructive pictures to teach them for the operation and maintenance. In addition, our engineers for guide assembly will teach your staff on site.
Audited Supplier 
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