This is a project about a cotton stem pellet machine in Uzbekistan. Recognizing the value of biomass as a renewable energy source, a biomass energy company in the Fergana Valley decided to invest in cotton stem pellet machines to transform agricultural waste into high-quality fuel pellets.

This is a project about a cotton stem pellet machine in Uzbekistan. Uzbekistan, one of the largest cotton producers in Central Asia, generates a significant amount of cotton stems after the annual harvest.
Traditionally, these stems were left in fields, burned, or used inefficiently as low-grade animal bedding. Recognizing the value of biomass as a renewable energy source, a biomass energy company in the Fergana Valley decided to invest in cotton stem pellet machines to transform agricultural waste into high-quality fuel pellets.
The client opted for two standalone cotton stem pellet machines to integrate into their pilot processing facility. These machines are not part of a full biomass pellet production line but serve as the cornerstone for testing and optimizing pellet quality, moisture content, and throughput. The biomass pellet machines allow the company to evaluate operational performance before considering larger-scale expansion.
Name:
cotton stalk pellet mill
Country:
Uzbekistan
Date:
2025
Capacity:
1.5–2.0 T/H
Model:
MZLH520
The install period:
1 Day
Total Power:
132 kW
Pellet Diameter:
6–10 mm
The client is an agricultural biomass enterprise focusing on renewable energy production. The purchase of standalone cotton stem pellet machines was driven by several operational and economic reasons:
This purchase was not a replacement for existing equipment; rather, it is a new investment to explore energy conversion from cotton stems and other agricultural residues. Each machine is capable of handling raw cotton stems, chopped crop residues, and even blended mixtures with wheat straw.
The main feedstock for the project is raw cotton stems, collected from nearby cotton farms during harvest. Stems are chopped to lengths of 10–15 cm and dried to 12–15% moisture. Occasionally, palm fronds imported from neighboring countries are added to improve pellet durability and calorific value, reflecting Uzbekistan’s limited domestic palm resources.
Considering the moisture content, density, and intended pellet use, the client selected the MZLH520 cotton stem pellet machine:
| Parameter | Specification |
|---|---|
| Main motor power | 132 kW |
| Arch-breaking feeder power | 3 kW |
| Forced feeder power | 1.5 kW |
| Ring die diameter | 520 mm |
| Pellet diameter | 6–10 mm |
| Production capacity | 1.5–2.0 T/H per machine |
With two cotton stem pellet machines in Uzbekistan installed, the facility achieves 3–4 T/H total output, providing sufficient supply for the local biomass market while maintaining flexibility in production.
The process for producing cotton stem biomass pellets involves:
The pellets produced are high-density fuel pellets, suitable for industrial boilers, biomass stoves, and small-scale power generators, providing a sustainable alternative to fossil fuels.
The cotton stem pellet machine in Uzbekistan offers multiple advantages:
The client highlighted that RICHI Machinery’s on-site support and operator training were essential to achieving consistent pellet quality immediately after commissioning.
The MZLH520 machines were shipped via sea freight to the Port of Karachi, Pakistan, the nearest major seaport accessible for heavy machinery shipments to Uzbekistan. RICHI Machinery handled packaging, quality checks, and export documentation to ensure smooth customs clearance.
"The MZLH520 cotton stem pellet machines have exceeded our expectations. They handle tough cotton stems effortlessly, producing uniform pellets that burn efficiently. The support from RICHI Machinery during installation and training has been invaluable. We are considering scaling up production and adding a third unit in the near future."
The cotton stem pellet machine in Uzbekistan project demonstrates:
Investing in RICHI Machinery’s cotton stem pellet machines provides a reliable, energy-efficient solution for biomass enterprises, backed by technical expertise and professional support, ensuring long-term operational success and profitability.
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