Contract for Three 10T/H Air Purifier Granule Production Line Projects in the United States

In July 2025, RICHI MACHINERY, the world's leading supplier of granule processing and complete solutions, once again ushered in an important cooperation milestone: the company successfully signed three 10 tons/hour air purifier granule production line projects with a large environmental protection technology group in the United States, with a total contract value of more than one million US dollars.

This project is a new breakthrough for RICHI's layout in the North American market, and it also sets another example for the extension of the global air purification material industry chain and efficient processing.

Project background: The demand for granulation of air purification materials is growing rapidly

With the improvement of global environmental awareness and increasingly stringent air quality management requirements, the application scenarios of air purifiers are constantly expanding, from industrial emission control to indoor air purification, and then to new environmentally friendly building materials. A variety of air purification materials such as activated carbon, mineral adsorbents, deodorants, formaldehyde purifiers, etc. are rapidly developing in the direction of granulation, modularization, and functional compositeness.

Granulation not only greatly improves the specific surface area and adsorption efficiency of air purification materials, but also significantly improves the convenience of storage, transportation and delivery, which is conducive to precise use in various environmental protection scenarios.

For production companies, efficient and stable particle processing production lines are the core link to achieve large-scale supply, improve product consistency and market competitiveness.

The American customer who signed the contract this time is a well-known local environmental protection technology company, focusing on the research and development and production of new air purifier products, which are widely used in home, medical, industrial and automotive fields.

After a number of new products are launched on the market, the customer plans to build 3 efficient, intelligent and highly automated air purifier particle production lines to meet its rapidly growing market demand.

Customer needs: higher capacity, higher standards, and higher flexibility

When contacting RICHI for the first time, the customer clearly put forward three core requirements for the new production line:

• High capacity and stable output: A single production line needs to maintain a stable particle production capacity of 10 tons/hour for a long time, and meet the needs of flexible switching of different types of purifier formulas;
• High automation and intelligence: The entire production process needs to achieve intelligent monitoring and precise batching, reduce manual intervention, and ensure the consistency of particle quality;
• High environmental protection and safety: Dust control, closed material transportation and automatic packaging during the production process must comply with strict local environmental protection and safety regulations in the United States.

Combining customer needs and the physical properties of diversified raw materials (activated carbon powder, mineral powder, composite adsorbent powder, etc.), the RICHI design team tailored a complete line solution from automatic mixing, precise granulation, rapid cooling, precise screening to intelligent packaging, and provided customers with a full-process intelligent control system to ensure the coordinated operation and flexible scheduling of the three production lines.

Efficient and stable granulation production process: RICHI's core competitiveness

In order to meet customers' stringent requirements for production capacity, energy consumption, environmental protection and particle consistency to the maximum extent, the three air purifier granule production lines delivered by RICHI this time fully integrate a number of mature technologies and innovative optimizations in process design. The core links include:

01 Automatic mixing-accurate formula to ensure product performance

Air purifiers with different functions often require multiple raw materials to be accurately mixed in proportion. RICHI provides customers with a multi-bin automatic batching system and a double-shaft paddle mixer. The raw materials are automatically put in after accurate weighing, and are evenly stirred through efficient mixing equipment to ensure that each component is evenly dispersed to avoid fluctuations in purification effects due to ratio errors.

Advantages: Mixing uniformity ≥ 95%, high degree of automation, effectively shortening mixing time, and improving the production capacity of the entire line.

02 Efficient granulation-high particle compactness and low loss

The mixed air purifier powder enters the RICHI customized ring die granulator through a closed conveying system for molding. Different from traditional feed pelleting, this type of purifier particles has higher requirements for specific surface area, porosity and mechanical strength. RICHI pelleting machine adopts adjustable mold design, which can flexibly switch particle diameter and density to meet different product specifications.

Advantages: high pelleting forming rate, complete and uniform particle appearance, and crushing rate less than 2%.

03 Rapid cooling-ensure the dry and stable particles

During the pelleting process, the material will generate heat under high pressure, resulting in high particle temperature and large fluctuations in water content. For this reason, RICHI provides customers with a countercurrent cooler, which uses cold air to exchange with high-temperature particles in reverse to quickly cool down to room temperature, effectively preventing the particles from moldy and agglomerating in the later stage.

Advantages: high cooling uniformity, stable particle moisture content, suitable for subsequent long-term storage.

04 Accurate screening-removal of unqualified particles

The cooled pellets enter the vibrating screen or rotary screen, and the oversized or undersized particles are separated through multiple layers of screens. The unqualified part will automatically return to the pelleting link for secondary pelleting. Qualified products go directly to the finished product warehouse to ensure the consistency of the particle size of the factory products.

Advantages: The qualified rate of products is over 98%, the screening efficiency is high, and the waste of raw materials is greatly reduced.

05 Intelligent packaging - efficient docking with market demand

The screened air purifier particles enter the fully automatic packaging machine through the automatic weighing and metering system, and the bags are quickly sealed and sewn according to the packaging weight set by the customer, and neatly stacked. RICHI can configure automatic wrapping machines and robot stacking systems according to customer needs to further improve the automation of the packaging line.

Advantages: Greatly reduce labor costs, improve delivery efficiency, and enhance the overall intelligence level of the factory.

Customer-centric, turnkey service escort throughout the process

From project establishment to scheme design, equipment manufacturing, installation and commissioning, to later operation training and remote technical support, RICHI always adheres to the "turnkey" service concept.

This time, the three air purifier particle production line projects in the United States are tailored to the optimal configuration in terms of raw material testing, equipment customization, energy-saving solutions, and environmental protection compliance, combined with the actual layout and operating habits of the customer's factory.

After the project is completed, it will become the most fully functional and highly automated air purifier particle factory in North America. The annual output is expected to exceed 200,000 tons, and the products are exported to North America, Europe and many countries in Asia, directly supporting the company to consolidate its leading position in the field of global air purification materials.

Sustainability and efficiency are equally important to help global air purification and environmental protection Against the backdrop of carbon neutrality and green economic transformation, the air purification materials and particle processing industries are facing unprecedented development opportunities. RICHI is well aware that every high-quality purifier particle is inseparable from the support of efficient, reliable and intelligent processing equipment.

Through continuous technological innovation in core processes such as mixing, granulation, cooling, screening and packaging, RICHI not only helps customers obtain stable high-quality products, but also saves energy, reduces labor costs and reduces emissions for customers with intelligent production lines, helping to achieve sustainable development goals.

RICHI - the global trusted choice for pellet processing equipment and turnkey projects

From animal feed, organic fertilizer, grass pellets to air purifiers, mineral pellets, and pet litter pellets, RICHI has provided more than 1,000 pellet production lines for more than 80 countries and regions around the world with mature pellet processing technology and rich global project experience, which are widely used in agriculture, environmental protection, energy, chemical industry and other industries.

If you also have a pellet processing project, please feel free to contact us!

Whether you need to build an air purifier pellet plant, an organic fertilizer pellet plant, a pet litter production line, or a pellet production line for raw materials such as straw, sawdust, and biomass, RICHI Machinery can provide you with a full-process turnkey service from raw material testing, process design, equipment manufacturing to installation and commissioning, personnel training, and after-sales maintenance.

Join hands with RICHI to make your pellet production smarter, more efficient, and more competitive!