Expert In Pelletizing Solutions Since 2000

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Amisy Machinery are committed to making all types of biomass wastes into green,affordable and renewable energy.
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Industrial-use Ring Die Wood Pellet Mill
Material: Groundnut shell/sawdust/paddy straw/wheat straw,etc
Pellet Size: 6/ 8/9/10/12mm
Power: 37-185 kw
Capacity: 0.3~3.5 t/h
Gurantee: 2 years
Application: Mass production of wood pellets for industrial boilers and large power plants

Industrial-use Brief Introduction to Ring Die Wood Pellet Mill
Ring die wood pellet mill is specially designed for mass industrial production of wood pellets. The raw materials are easy to obtain, like groundnut shell, sawdust, paddy straw, wheat straw, palm husk, rice husks, etc and many other agro and forestry wastes. The final pellets can be used for industrial boilers and large power plants as well as home heating.
Remarkable Features of Industrial-use Ring Die Wood Pellet Mill

raw materials for making wood pellets

1. Main drive adopts high accurate gear drive, with an output of about 20% higher than belt drive.
2. The drive part of the machine including motor optimize, the high quality SKF bearings and NAK oil seals ensure high efficient and steady driving with low noise.
3. The imperative feeder device is adopted, which making the machine operate smoothly as the material like wood sawdust, corn, wheat, and rice straw is very light, so they are needed to be pushed into pelletizing chamber by force.
4. Special design of feed conditioner adopts the frequency-conversion speed regulating control to guarantee wood pellets quality.
5. The ring die is made by international advanced technology, has long service life and ensure smoothly pelletizing and high quality.
6. The international advanced compensation type flexible coupling is of novel and compact structure, safety, low noise and less trouble.
7. Permanent magnet device can remove impurities in the pelletizing process.

ring die pellet mill pelletizing chamber

SKF bearings

Making Wood Pellets: Ring Die Pellet Mill or Flat Die Pellet Mill

A. Ring die pellet mill has wide application in commercial use with relatively large production capacity, 300~3500 kg/h. While flat die pellet mill is popular with home use, capacity from 30-2000kg/h.
B. Ring die wood pellet mill adopts imperative feeding device, ensuring a continuous & even feeding speed. Flat die pellet mill adopts vertical feeding way, that is to say, materials depend on its own weight dropping into the pelletizing chamber. So the feeding speed of flat die pellet mill cannot be controlled automatically.
C. The roller shell of ring die pellet mill for making biomass pellets doesn't completely cover the roller, reducing wear and prolong service life.
D. Ring die pellet mill can be applied to making various biomass materials into pellets, especially for materials hard to be pelletized or with much moisture.
E. Ring die pellet mill can be equipped with inner oil spraying device, making pellets surface more smooth and solid.

ring die pellet mill or flat die pellet mill

If you want to start medium or large size wood pellet plant for commercial use, you should firstly consider 3 factors: working efficiency, pellets quality, profits. Working efficiency: ring die pellet mill is highlighted with high efficiency and large capacity. Pellets quality: biomass pellets produced by ring die pellet mill are more solid and smooth. Cost- effective: though ring die pellet mill is relatively more expensive, while compared with its long service life and low-malfunction rate, it is really a cost-effective machine. Combine all these factors together, ring die pellet mill is best choice.
Operating Instructions of Industrial-use Ring Die Wood Pellet Mill
◇ Have a better understanding of the pellet mill structure and performance, and strictly follow the operation instructions and professional technical personnels’ guidance.
◇ Pay attention to regular maintenance and repair so as to extend the machine service life.
◇ The operator should stay at the working area while pellet mill is under running condition.
◇ It’s wise to choose appropriate pellet mill according to different raw materials and capacity requirements.
Industrial-use Ring Die Wood Pellet Mill Technical Parameter

Model MZLH320 MZLH350 MZLH400 MZLH420 MZLH508 MZLH558
Power 37 kw 55 kw 75 kw 90 kw 132 kw 185 kw
Capacity 0.3~0.5 t/h 0.4~0.6 t/h 0.8~1 t/h 1~1.2 t/h 1.5~2.2 t/h 2.5~3.5 t/h
Dimension 2100*800*1300 mm 2200*900*1500 mm 2300*1000*2100 mm 2700*1100*1800 mm 2800*1200*1900 mm 2800*1500*2200 mm


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Product Name: Industrial-use Ring Die Wood Pellet Mill
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