Hammer mills are widely used for mechanical preprocessing due to their ability to achieve high size reduction ratios and produce uniformly shaped particles. They operate by rapidly rotating hammers that impact materials, causing them to shatter. The material then strikes the inner breaker plate, further reducing its size. High-speed hammer mills with small-diameter rotors are preferred for fine grinding, while tip speed influences the particle trajectory and grinding efficiency. The screen opening size determines particle size and energy consumption, with smaller openings requiring more energy.

Larger particles are retained for further grinding, which increases size reduction efficiency but also leads to wear on the mill's interior. Different breakage patterns are observed between hard and soft materials; the formation of finer particles is associated with increased wear. The arrangement of the grinders affects the breakage mechanism, which in turn alters the particle distribution. The mill performance can be optimized in different ways depending on rotor speed and feed rate.

Hammer Mill - Technical Selection Table

Model Rotor Diameter (mm) Rotor Width (mm) Capacity (tons/hour) Rotor Speed (RPM) Motor Power (kW) Approx. Weight (kg)
HM-300 300 200 0.2 – 0.5 3000 5.5 800
HM-400 400 300 0.5 – 1 2800 7.5 1200
HM-500 500 400 1 – 2 2600 11 1800
HM-600 600 500 2 – 3 2400 15 2500
HM-700 700 600 3 – 5 2200 22 3200
HM-800 800 700 4 – 7 2000 30 4000
HM-900 900 800 6 – 9 1800 37 5000
HM-1000 1000 900 8 – 12 1600 45 6200
HM-1100 1100 1000 10 – 15 1500 55 7500
HM-1200 1200 1100 12 – 18 1400 75 9000
HM-1300 1300 1200 15 – 22 1300 90 11000
HM-1400 1400 1300 18 – 25 1200 110 13000
HM-1500 1500 1400 20 – 28 1100 132 15000
HM-1600 1600 1500 22 – 32 1000 160 17000
HM-1800 1800 1600 25 – 35 900 185 19000

 

NOTE: Our company manufactures systems in a wide range of capacities, from laboratory scale to industrial scale. To receive a price quote for your desired capacity, please send an email to

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