|No.56 Huida Road, Zhongyuan District, Zhengzhou, Chinaemail@example.com|
Payment & Shipping Terms:
|Product Name:||MZLH420 Ring Die Wood Pellet Mill||Usage:||Make Wood Pellets|
|Final Pellets Moisture:||7-9%||Final Pellets Bulk Density:||>650kg/m³|
|Service:||Engineers Available To Service Machinery Overseas||Warranty:||12 Months|
commercial wood pellet mill,
wood chip pellet machine
MZLH420 Ring Die Wood Pellet Mill Wood Pellet Pressing Machine Wood Pelletizer
MZLH420 ring die wood pellet mill is our 1-1.2t/h ring die type pellet machine, which is our medium model wood pellet mill.
Main parts of MZLH420 ring die wood pellet mill
Ring die is an important part for a pellet mill, it decide the diameter of pellets, color of pellets, hardness of pellets as well as quality of pellets.
One important data for ring die is compression ratio, only with a good compression ratio the ring die can make high quality pellets. The compression ratio is ratio between effective compression length of the hole and effective diameter of the hole. For different raw material the compression ratio is different, produce pellets from low bulk density raw material the compression ratio should be a bit higher than produce pellets from high bulk density raw material.
Our ring die is made of 42CrMnTi high wearing resisting alloy steel, with quench and heat treatment technology to improve the hardness and lifetime of ring die.
Inside the hole of ring die there is four part, first part from inner said is subuliform, which makes easier for material press into hole of ring die. Second part from inner said is a hole with diameter a little bigger than pellet diameter, it is also designed for easier press material into the hole, the third part from inner side decide diameter of pellets, it is the effective compression length of hole, the length of this part decide the compression ratio of ring die. The lat part is at the outside this part diameter is bigger than pellets diameter for pellets easier discharge from the hole.
Roller assembly is rollers inside wood pellet mill press, each pellet mill have two rollers. Inside the pelletizing chamber rollers press material into hole of ring die. The roller rotating by fraction between roller and material, material and ring die, when ring die rotating because fraction the roller shell is also rotating.
A roller include roller shaft, roller shell, two bearings, space ring, roller cover, lock nut and jump ring.
Roller shell is wearing part of pellet mill, during pellet mill working, because the fraction between roller shell and material, the wave on roller shell will be worn out, so replace new roller shell is necessary when it worn out
Roller shaft is a eccentric shaft, because of the eccentric design, when the shaft is stable the roller shell rotating, it can press material into hole of ring die.
Inside roller shaft there is a hole to inject grease to the two bearings, which is important for roller, if no grease inside roller, the bearings will be burnt.
Gearbox of ring die wood pellet mill press is vertical type design, inside gearbox is a big gear and a small gear, the big gear connect to shaft of pellet mill, the small gear connect to main motor by coupling.
When motor turn on, the small gear rotating together with motor, at same time small gear drive big gear rotating.
The pole of main motor decide the rotating speed of small gear, and module of gear decide the rotating speed of big gear, thus to decide the rotating speed of ring die.
To improve stability of wood pellet mill press, we use 110kw eight poles motor on our MZLH420 pellet mill, the rotating speed is around 740rpm, with the gearbox it can reduce the rotating speed of ring die to 150rpm, so the gearbox is also a big reducer in the pellet mill.
Our gears are designed according to the strength and pressure need for pelletizing, so the teeth of gear, raw material of gear is carefully calculated to make sure the hardness can bear the high pressure.
Ring die type pellet mill have two shaft, one is main shaft the other is hollow shaft.
When assemble the machine, main shaft shaft is inside the hollow shaft, in front main shaft is rollers while in front of hollow shaft is ring die. Back side of main shaft is safety seat, while ack side of hollow shaft is fitted in the big gear. When turn on the motor, the motor drive small gear and small gear drive big gear, when big gear rotating the hollow shaft rotating together, that is why when machine running the roller is stable and ring die is rotating.
Our main shaft and hollow shaft is made of 42CrMn alloy steel, to improve the hardness and wearing resisting to assure it’s functional and lifetime.
Under EN and DIN Plus A1 standard, the length of pellets should < 5 times of diameter of pellets, this means there is requirement on length of high quality pellets.
Our ring die type wood pellet mill press equipped with a pellet cutter, when the pellets compressed from hole of ring die, there is a cutter near ring die, during ring die rotating the cutter cutting the pellets.
On the cutter unit there is a dividing ruler, which can adjust the gap between blade and ring die thus to adjust length of pellets.
The blade of cutter unit is made of high strength alloy steel, the lifetime of this blade is longer than 2 years.
Technical data of 1-1.2t/h MZLH420 model ring die wood pellet mill
|Feeder Motor Power||2.2Kw|
|Fore Feeder Power||1.1Kw|
|Ring Die Diameter||420mm|
|Ring Die Speed||150 RPM|
|Ring Die Work Temperature||≤ 80℃|
|Feeder Auger Speed||12-120RPM|
|Feeding sawdust moisture||12-15%|
Contact Person: Vincent
Tel: 86- 18639007627