hammer mill

Hammer mill is the most commonly used auxiliary equipment for pellet production, since not all biomass raw materials have exactly the right size (below 3mm) for pelletizing. Usually it can process various biomasses like corn, corn stalk, peanut shell, grass and bean stalk.

There are small hammer mills and large hammer mills for sale. Also can be called wood crusher.

Small hammer mill

Technical Parameters of small hammer mill

Model	Power	Size (mm)	Net weight (kg)	Spindle Speed (r/min)	Screen	Capacity (kg/h)
420B-7.5	7.5KW(electric motor)	1200×1000×1220	285/310	3200	1.2-10	300-600
420B-11	11KW(electric motor)	1200×1000×1220	310/330	3200	1.2-10	300-600
420A-15	15HP(diesel motor)	1400×1000×1200	340/400	3200	1.2-10	300-600
420A-22	22HP(diesel motor)	1400×1000×1200	370/410	3200	1.2-10	300-600
500A-55	55HP(diesel motor)	2000×900×1700	400/420	3200	1.2-10	600-800

How the hammer mills work?

The raw material goes through the feed hopper into the grinding chamber and crushed by the high speed rotating hammer plates. Under the impact of centrifugal force, the materials will be extruded continuously into powder. By the suction of the fan, the powdery material will be discharged through the sieve, while those cannot go through the sieve will be pulverized again until they can pass the sieve holes.

Large hammer mill

Technical data of large hammer mill

Items	SFSP 6 0×3 0	SFSP 6 0×3 8	SFSP 6 0×4 5>
rotor diameter（mm）	600	600	600
crush room width（mm）	300	380	450
speed of main shaft (turn/min	2940	2940	2940
Hammer line speed（meter/second	94	94	94
Hammer quantity	40	56	64
power（kW)	22	45	75
Anti-vibration pad	6 pieces	6 pieces	6 pieces
Size	Length (mm)	1778	1829
Width (mm)	Width (mm)	838	838
Height (mm)	Height (mm)	1194	1194