Biomass Wood Pellet Machine – Pellet Mill for Sawdust, Straw, and Agricultural Waste Pelletizing

Energy-efficient pellet mill converting forestry and farm residues into high-density biomass fuel pellets.

SPM series high-grade pellet mill is the main item of equipment for producing wood pellet with application to large and medium scale wood pellet plant.
The machine features compact structure, fine appearance, low noise, high output with low power consumption, it is convenient in operation and reliable in performance.
The machine can be fitted with dies of ?6 or ?8 hole diameter, which can be chosen by user according to requirements.
The machine adopts frequency conversion speed-adjusting motor for feeder and LLL large door conditioner access, with axial liquid addition.
Feeder is fitted with strong magnetic safety device, press overload protection device and external discharging mechanism.

II. MAIN TECHNICAL PARAMETERS OF SPM780

No.	Model	SPM780
1	Output	2.7-3.5t/h
2	Main Motor Power	220/250KW
3	Feeder Power	3KW
4	Die ID	Ф765mm
5	Effective Width of Die	155mm
6	Feeder Rotational Speed	12-90rpm
7	Pellet Specification	Ф6~Ф12mm
8	Roller Number	2
9	Roller OD	Ф370mm
10	Pellet Shaping Rate	≥95%
11	Pellet Powdering Rate	≤10%
12	Pellet Stability in Water	≥20min
13	Noise	≤80dB(A)
14	Working Temperature of Die	≤165℃
15	Overall Dimension	3667×1870×2505mm

III. MAIN STRUCTURE AND WORKING PRINCIPLE
The sawdust with moisture content not higher than 14% flows into feeder from hopper and proper flow rate is obtained by adjusting the rotational speed of feeder shaft. Then sawdust passes the safety magnet for removing the magnetic impurities and enters the conditioner for conditioning through the stirring of conditioner shaft and mixing with liquid. If liquid additive needs to be added, it can be added to conditioner for conditioning (generally the adding volume cannot be more than 3%). After conditioning, the moisture content of material can be adjusted. Then the sawdust passes the feed chute and finally enters the pellet chamber for pelleting.