Sawdust Dryer Machine

Sawdust dryer machine is an essential piece of equipment for reducing the moisture content of sawdust, wood chips, rice husks, straw, and other biomass materials before pelletizing, briquetting, or further processing. At Shuliy Machinery, we provide both biomass rotary dryers and airflow sawdust dryers to meet different production capacities and raw material requirements. Whether you operate a biomass pellet plant, charcoal briquette factory, or wood processing business, we can customize the most suitable drying solution for your production line.

What Is a Sawdust Dryer Machine?

A sawdust dryer machine, also known as a biomass dryer machine, is designed to remove excess moisture from biomass materials through heated air. By reducing the moisture content to the optimal level (generally 8%–12%), the machine improves the efficiency of biomass pellet production, charcoal briquetting, wood block manufacturing, and other downstream processes.

Fresh sawdust or agricultural waste often contains 30%–60% moisture, making it unsuitable for direct pelletizing or briquetting. A professional drying system ensures consistent product quality, higher fuel value, easier storage, and lower transportation costs.

Types of Shuliy Biomass Dryer Machines

Shuliy offers two drying solutions according to different production requirements.

Rotary Drum Type Wood Sawdust Dryer

Biomass rotary drum dryer is a continuous drying machine used to reduce the moisture content of biomass materials. It works by using a rotating drum combined with hot air heat exchange technology to evaporate the moisture from wet materials, making them suitable for further processing.

It is widely used in the biomass fuel processing industry for drying materials such as wood chips, sawdust, straw, rice husks, bagasse, palm fiber, and other biomass materials.

Simply speaking, its working process is:

Wet biomass materials → Rotary drum drying → Moisture reduction → Dried biomass materials → Pelletizing / briquetting / combustion use.

Working Principle of Biomass Rotary Drum Dryer

The biomass drum dryer mainly consists of a rotating drum, hot air furnace, feeding system, lifting plates, induced draft system, and dust removal system.

1. Wet Materials Enter the Drum

Wet biomass materials such as sawdust, wood chips, and straw are fed into one end of the dryer through a conveyor.

2. Drum Rotation Lifts and Scatters the Materials

Multiple specially designed lifting plates are installed inside the drum. As the drum rotates, the materials are continuously lifted, turned over, and scattered, forming a uniform material curtain inside the drum.

3. Hot Air Performs the Drying Process

The high-temperature hot air generated by the hot air furnace enters the rotary drum and fully contacts the continuously tumbling biomass materials, absorbing and removing the moisture from them.

The heating furnace is installed by the customer. Our company can assist with the design and provide installation drawings according to the customer’s requirements.

4. Moisture Vapor Is Discharged

The evaporated moisture is discharged together with the humid hot air through the fan and dust removal system, while the dried biomass materials are discharged from the other end of the dryer.