This is a project about biomass pellet mills in the United States. A Midwest-based sawmill and biomass energy company identified the need to improve their pellet production efficiency.

This is a project about biomass pellet mills in the United States. The United States has experienced significant growth in biomass energy projects, particularly using agricultural and forestry residues as a sustainable source of fuel. With increasing demand for eco-friendly energy solutions and industrial applications, a Midwest-based sawmill and biomass energy company identified the need to improve their pellet production efficiency.
The company decided to invest in two biomass pellet mills to process a combination of sawdust, wood chips, and crop residues, converting these raw materials into high-quality pellets for fuel, cat litter, and other industrial applications. This purchase reflects a strategic move to upgrade their single-unit production capacity and meet rising market demand without immediately expanding the full biomass pelllet production line.
The client sought single, high-efficiency pellet mills to handle their current raw material supply while ensuring flexibility for future scale-up.
Name:
wood waste pelletizer
Country:
United States
Date:
2025
Capacity:
1.0–1.2 tons per hour
Model:
MZLH420
Main Motor Power:
90 kW
Raw Materials:
Sawdust, Wood chips, Corn stalk
Pellet diameter:
6–10 mm
Operating in the renewable energy and wood processing industry, the client specializes in producing fuel pellets for domestic heating, industrial boilers, and eco-friendly cat litter. Their previous equipment had limited capacity, faced frequent clogging with fibrous residues, and generated inconsistent pellet density.
After thorough evaluation, the client selected two MZLH420 biomass pellet mills from RICHI Machinery. These units are particularly suitable for fuel and cat litter pellet production without a built-in conditioner, matching the client’s requirement to process pre-dried wood residues efficiently. Key specifications of the MZLH420 include:
Purchasing two machines allows the company to double production capacity, maintain operational flexibility, and reduce potential downtime during maintenance.
The client sources raw materials from:
These raw materials are chopped, screened, and air-dried to approximately 10–15% moisture content before pelletizing. The MZLH420 mills produce 6–10 mm dense pellets, suitable for:
The client also experimented with blending wood chips and corn stalks to optimize pellet density and combustion efficiency, utilizing the versatility of the MZLH420 machines.
The MZLH420 biomass pellet mills offer several key advantages for the client:
Although only two single units were purchased, they were integrated with the client’s existing drying, feeding, and screening systems, forming a semi-modular configuration that allows flexible operations depending on raw material type and seasonal availability.
The MZLH420 biomass pellet mills were shipped from China via sea freight to Port of Houston, Texas, a major logistics hub for industrial machinery in the United States. RICHI Machinery provided:
This ensured the client could begin pellet production immediately, with minimal downtime and a smooth transition from old equipment to the new system.
RICHI biomass pellet machines are designed for multi-material processing. The MZLH420 model offers:
This flexibility allows the client to adapt production to market demand, producing eco-friendly fuel pellets and biodegradable cat litter as needed.
Three months after installation, the client reported:
The plant manager noted: “RICHI’s MZLH420 biomass pellet mills are robust and versatile. They handle diverse raw materials without issues, and the technical support from RICHI during installation was exceptional. Our production efficiency and product quality have improved significantly.”
This biomass pellet mills in United States project demonstrates how RICHI Machinery empowers clients to transform raw wood and agricultural residues into high-value pellets. By deploying durable, versatile, and high-efficiency pellet mills, U.S. enterprises can leverage sustainable energy solutions and eco-friendly industrial products.
RICHI’s commitment to premium quality equipment, professional technical support, and reliable logistics ensures that biomass projects in the United States can confidently invest in long-term, profitable pellet production.
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ANIMAL FEED
BIOMASS
WOOD
ORGANIC FERTILIZER
AQUA FEED
CAT LITTER
MUNICIPAL WASTE RECYCLING
SPECIAL PELLET PRODUCTION
RICHI Machinery continues to deliver world class pellet mill equipment, pellet plant engineering and project solutions that add value to our customers in the animal feed, wood waste, agriculture waste, organic fertilizer, cat litter and special pellet products industries. Throughout the years, we RICHI Machinery have built strong brand, becoming industry-leading pellet machine manufacturer. We value integrity, promise quality, and prioritize your success.
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