Pellet Machine

Pellet machines are devices used to create pellets from materials such as wood chips, sawdust, straw, and other biomass. These pellets are used as fuel for stoves, boilers, and other heating systems. The process of pellet machine involves several steps to create high-quality pellets. In this article, we will discuss the process of pellet machine in detail.

Step 1: Preparation of Raw Materials
The first step in the process of pellet machine is the preparation of raw materials. The raw materials used for pellet making should be clean, dry, and free from any foreign materials. It is important to ensure that the raw materials are of consistent quality to produce consistent pellets.

Step 2: Grinding
Once the raw materials are ready, they are ground into small particles using a hammer mill or a wood chipper. This is done to reduce the size of the raw materials, making them more suitable for pelletizing.

Step 3: Drying
After grinding, the raw materials are dried to reduce the moisture content. This is important as excess moisture can affect the quality of the pellets. The drying process can be done using a dryer or by leaving the raw materials in the sun.

Step 4: Pelletizing
The dried raw materials are then fed into the pellet machine. The pellet machine compresses the raw materials, using heat and pressure, to form pellets of a uniform size and shape. The pellets are then cooled and stored for future use.

Step 5: Packaging
The final step in the process of pellet machine is packaging. The pellets are packaged in bags, which are then sealed to prevent moisture and contamination. The bags are labeled with the type of pellets, the date of manufacture, and other relevant information.

Pellet machine are used to make pellets from a variety of materials, including wood, biomass and feed. These machines are ideal for anyone who wants to produce pellets for personal or commercial use. With so many pellet machines on the market, choosing the right one can be challenging. Here are some things to consider when purchasing a pellet machine.

Purpose of the Pellet Machine
Before purchasing a pellet machine, you need to determine why you need it. Is it for personal use or commercial use? If you only plan on making pellets for personal use, then a small pellet machine will suffice. However, if you plan on using it for commercial use, then you will need a larger machine that can produce pellets in large quantities.

Pellet Machine Output
The output of the pellet machine is another crucial factor to consider. The output is the amount of pellets that the machine can produce in an hour. If you plan on using the machine for commercial purposes, then you need to choose a machine with a high output capacity. However, if you only plan on using it for personal use, then a machine with a lower output capacity will suffice.

Pellet Machine Power
The power of the pellet machine is also important. The power rating of the machine determines its efficiency and performance. If you plan on using the machine for commercial purposes, then you need to choose a machine with a high power rating. However, if you only plan on using it for personal use, then a machine with a lower power rating will suffice.

Pellet Machine Price
The price of the pellet machine is another important consideration. Pellet machines are available in different price ranges, and you need to choose one that fits your budget. However, you should not compromise on quality for the price. Ensure that you choose a machine that is affordable and of high quality.

Pellet Machine Brand and Reputation
The brand and reputation of the pellet machine manufacturer are important considerations. You should choose a machine from a reputable manufacturer with a good track record. This will ensure that you get a high-quality machine that will last for a long time.

Add lubricating oil
Before using pellet machine for the first time, you need to add lubricating oil to the gearbox, roller and shaft. Every time before using pellet machine, make sure there are enough lubricating oil in each running part. For each part, the lubricating period is different. You need to lubricate the roller every 4 hours, main shaft every 8 hours, and gearbox every 1 year (the first time is 6 months).

Check the Flat die and roller
Before starting the machine, you need check the flat die and roller. Make sure there is no foreign matters blocking them, and no loose in the fastening parts. Check the abrasion of roller and die. The working life of flat die and roller is 300-500h under normal condition, and you can switch to the other side of flat die when it wears out.

Adjust the clearance of flat die and roller
The clearance between roller and die determines the pelletizing effect. You must adjust it according to the materials you process. The best clearance is between 0.1mm and 0.3mm. If it is over 0.3mm, the material bed will be too thick and pellet production will be less. If the it is less than 0.1mm, the abrasion of roller and die will increase and shorten the working life.

How to adjust the clearance of flat die and roller
For roller-turned type: Before feeding materials, loosen the lock bolt. Screw the adjusting nut clockwise to the end, then screw it towards the other side for 15°-30°. Finally, fasten the lock bolt.

For die-turned type: Start the machine, feed a few materials, then adjust the adjusting bolt. When the roller start to run driven by the flat die, you can continue to feed materials and adjust the tightness of adjust bolt according to the pelletizing effect.

Flat Die First Grinding
Before first use, you need grind the flat die with oil mixture.The oil mixture is composed of 20% fine sand, 65% biomass materials(like sawdust), 15% waste engine oil. The quantity of oil mixture is 10% of the pellets you pellet mill can produce every hour.

Put a container under the outlet of pellet mill to collect the oil mixture for cycle use. Then, start the machine and feed the oil mixture to the machine. Don’t fill the bin too full. When the oil mixture passes through the hopper, it grinding effect is reached. The grinding process takes 40-60 minutes.

Pellet Machine Preheat
Every time before making pellets, you need feed oil mixture repeatedly until the flat die temperature reaches up to 50 ℃. Then you can feed materials. In the beginning, pellets have some cracks on them. After 5 minutes, the machine temperature will go up to 80-100℃, then it can make pellets normally.

The oil mixture for pellet mill preheat contains 3-5kg raw materials and 10% waste engine oil.
Steps:Put a container under the outlet of pellet mill so that you can reuse the oil mixture. Start the machine and feed oil mixture to it. Don’t fill the bin too full. After a few minutes, there will be water vapor at the hopper. This means the machine start to heat up. When the produced pellets are hard enough, you can feed raw materials to make pellets.

Check The Tightness Of Each Connecting Part
Before starting up, make sure the cap bolts at the ends of roller is tight, in case it fall off and cause damage to the roller. Then check other parts of the pellet machine completely to remove any loose part.

Ensure Safety Protection
Check if there is any power leakage in electric motor, electric cabinet and wires. Make sure the protective cover works normally. Keep the ground dry so as to minimize the risk of power leakage.

Check The Rotating Direction
For the first time use, please check whether the rotating direction is consistent with the indicative sign on the machine. If not, please adjust the drive engine. If it is normal, you need first switch on the circuit breaker, then press the start button.

A pellet machine works by passing raw materials in a powdered state through the compression and hardening processes. It then makes them go through holes cast in a particular shape and size. The dimensions of these openings or gaps determine and govern the structure of the pellets.

The holes’ shapes depend on various parameters and qualities of the raw materials, including their size fractions, density, ash and moisture content, etc.

The shaped pellets generally come out hot as they get subjected to heat during the shaping process. At the last step, they get cooled to room temperature. It increases their lifetime and strength. In addition, it reduces their abrasive nature and dust production.

Nanchang Huibing Electronics Co., Ltd. was established in 2018 as a company focusing on the production of high-quality egg incubators and other poultry equipment, providing quality services and technical support. The company's products have been highly recognized by our customers and have a wide range of application fields. Since 2018, our company has its own factory located in Dezhou, Shandong, with a total area of more than 15,000 square meters, and a number of companies to reach strategic cooperation, long-term maintenance of stable supply capacity.