Sawdust Pellet Production Line

Zhengzhou Fanda Machinery Co., Ltd. is one of the leading manufacturers and suppliers of sawdust pellet production line in China. With abundant experience, we warmly welcome you to buy cheap sawdust pellet production line for sale here from our factory. For price consultation, contact us.

Sawdust Pellet Production Line

Sawdust is an ideal raw material for biofuel wood pellets because it's easy to prepare, requires low investment, has a straightforward process, and produces pellets with high bulk density and heating value.

To produce pellets from sawdust,t the flowchart is quite easy:

If the sawdust is not pure, for example, if it contains a few wood blocks, it needs pre-cleaning; usually, a drum sieve is used to remove the large pieces 

--If the sawdust moisture is higher than 15%, a dryer is needed to reduce the moisture before the pellet machine; if the moisture is lower than 15%, it can go directly to the pellet machine.

--After the pellet machine makes pellets, you need to cool down the pellets and pack the pellets into bags for easier delivery.

We offer 0.5t/h, 1t/h, 1.5t/h, 2t/h, 3t/h, and 4-5t/h sawdust pellet lines; we can also design a larger-capacity line to meet your requirements.

Below is the machine description for the 2t/h sawdust pellet production line:

1. Drying part

To make sawdust pellets, you usually need drying equipment because the optimal moisture content is 12-15%. Most sawdust has moisture content above 15%, so a dryer is needed to reduce it to below 15% as the first step in making wood pellets from sawdust. For a small-capacity production line, a flash dryer can handle 2 t/h of sawdust. Still, a rotary drum dryer is the better solution because it can handle large quantities, and its rotating speed is adjustable to handle sawdust with different moisture content levels. The rotary drum dryer can handle sawdust with initial moisture up to 60-70%.With a 

2 t/h drying capacity, our HJ1500 rotary drum dryer has a 1.5-meter drum diameter and a 12-meter drum length. It uses a single-layer (single-pass) design; the drum tube provides more space for sawdust to pass through, so it cannot build up.

2. Pelletizing part

The pelletizing part is the most important in a 2t/h sawdust pellet production line. It includes the conveyor feeding system, hopper storage for pellet mills, pellet mills, and an automatic control system. Sawdust moves from a belt or screw conveyor to the storage hopper, then to the pellet mills.

Using two MZLH420 horizontal ring die pellet mills to produce 2 t/h of wood pellets is the best solution because the MZLH420 is the best among horizontal ring die pellet mills, with strong performance and stability. Using two pellet mills also offers an advantage: if one mill is under maintenance, you can still use the other to keep pellet production running.

The MZLH420 ring die pellet mill includes a feeder and a force feeder. The feed auger is VFD-controlled, so it can adjust feeding speed to prevent sawdust blockages in the pelletizing chamber caused by overload. The force feeder and feeder scraper help push sawdust into the ring die, improving productivity.

3. Cooling and packing part

A cooler is necessary for a high-capacity pellet line because pellets leaving the pellet mill can reach 60-0 °C. If cooling is done naturally or too slowly, the pellet surface will crack, so an efficient cooling system is important after pelletizing; that is why it needs a counterflow cooler after the pellet mill.

The counterflow pellet cooler includes the cooler main body, de-dust system, feeding airlock, discharge system, and pellet sieve. The cooler can cool pellets to room temperature; the cooling time can be adjusted from the electric panel, and the system operates automatically under its control. The pellet sieve separates small pellets or powder from the main pellets, so only good pellets go to packing or storage; the small pellets or powder can go back to the pellet mill to be made into pellets again.

After cooling, some clients require a packing machine to pack the pellets into bags; others require a large storage tank to store the pellets and deliver them directly without packing. We can design it to meet the client's requirements.

We have a packing machine that weighs pellets to a PLC-set value, discharges them into bags, and seals the bags. The packing machine is highly accurate.

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