Home > Wood Pellet Mill >
Coffee Shell Pellet Mill

Coffee Shell Pellet Mill

CAPACITY: 0.5T/H-100T/
APPLICATION: Coffee Shell Pellet Plant

Coffee shell are the residual products that are left behind after the cultivation of coffee and the wastes that are left after brewing coffee are known as coffee grounds, In addition, there is also Coffee skin, coffee residues and coffee powder.

WhatsApp: 0086-15837153047
Coffee Shell Pellet Mill

Applications Of Coffee Shell Pellet Mill

Coffee Shell

Coffee has a huge demand in the market and hence it is produced widely in different parts of the world like Brazil, Vietnam, Indonesia, and Colombia. The coffee husk that is left behind after the cultivation of coffee can be converted into an extremely valuable fuel, which is known as the coffee pellet. Coffee pellets are becoming important sources of energy which are used for the generation of electricity.

While some of the world's top coffee-producing nations are well-known, others may come as a surprise. More than 70 countries produce coffee, but the majority of global output comes from the top five producers: Brazil, Vietnam, Colombia, Indonesia, and Ethiopia.

Technical Features Of Coffee Shell Pellet Mill

    1.Vertical feeding, directly in place.

    2.The mold is stationary, the pressure wheel is rotated, the material is centrifuged, and the material is evenly surrounded.

    3.The mold is double-layered, dual-use, lower cost, high production and energy saving.

    4.Ring mold, vertical structure, using the granulation chamber to reduce heat.

    5.The ring frequency pellet machine's independent variable frequency discharge device guarantees the pellet forming rate, reasonable design and low energy consumption.

    6.The main stress components use high-alloy wear-resistant materials, and the life of wearing parts is twice that of similar products.

    7.24 hours work, fully automatic lubrication.

Working Principle Of Coffee Shell Pellet Mill

It is caused by squeezing raw materials such as rice husk and straw under pressure at normal temperature by using rollers and ring die granulators. Convenient transportation and storage, meanwhile, its fuel performance is greatly improved. The particle size of raw materials can be divided into coarse particles, medium particles and fine particles. Above 3.0 is coarse grain. Medium and fine granules have better granulation properties, low energy consumption and less wear on the die roll. When medium and fine granules are quenched and tempered, they have more surface area than coarse grains in contact with steam, and steam easily penetrates the particles. The core makes it fully mature, produces physical and chemical changes, and improves granulation quality. Coarse particles cannot be completely penetrated by steam; in addition, when coarse material is granulated, the surface area of ​​contact with each other is less than that of medium and fine particles, and the adhesion is poor. After granulation, the particle swelling rate is large and cracks easily; High density, good ability to pass through die holes, less wear on die holes, and high productivity.

10 Top Coffee-Producing Countries In 2020

Country Metric tons Pounds
Brazil 3,558,000 7,844,000,000
Vietnam 1,830,000 4,034,000,000
Colombia 858,000 1,892,000,000
Indonesia 642,000 1,415,000,000
Etdiopia 441,000 972,000,000
Honduras 390,000 860,000,000
India 329,100 726,000,000
Mexico 273,000 602,000,000
Peru 270,000 595,000,000
Uganda 255,000 562,000,000
How to Make Coffee Shell Into Pellets

Step 1: Grinding

coffee husk is crushed with the help of hammer mills or a grinder to reduce the size of the coffee shell and finally produce a fine powder.

Step 2: Drying

Coffee shell has a high moisture content of 40-70%, depending on the olive oil extraction process. Then a rotary drum dryer is essential. The rotary dryer has a slight inclination, acting as a conveying device and stirrer. The goal of the drying process is to reduce the moisture of coffee shell to approximately 12%, which is suitable for pelletizing.

Step 3: Pelleting

After drying, the coffee shell can be pelletized directly without any further treatment. The ring die coffee shell pellet machine is more proper for coffee shell pellet production. And the ring die compression ratio should be higher than 1:6.5. No adhesive added in this procedure.

How to Make Coffee Shell Into Pellets
How to Make Coffee Shell Into Pellets

Step 4: Cooling

Coffee husk pellets discharged from pellet mill are high in temperature and moisture content. Our counter current pellet cooler is used to remove pellet heat as well as the moisture content to ensure pellets quality and shelf-life.

Step 5: Sieving

The powder materials or unshaped coffee husk pellets are sieved and send to the pellet mill again.

Step 6: Packaging

These pellets and briquettes are then packed into different capacity bags for distribution.

Benefits Of Coffee Shell Pellet

1. The product is oil-bearing and is therefore water repellent on storage and contains less dust.

2. A much better combustion value compared to wood pellets.

3. The ash of olive burning has no disposal rights and is therefore suitable for spreading over the crops or the land as fertilizer because of its purity.

4. Olive pellets and olive cake are available throughout the year with residue from production.

5. No burden on the environment by cutting down trees

6. A higher and better CO2 compensation

Advantages of Coffee Pellets

1. Higher heat value

There are 52.2kg of carbons in every 100kg of coffee waste ground,which contributes to the high heat value of coffee pellets,reaching more than 4200mj/kg.While the wood pellets normally has 4200~4300mg/kg.

2. Lower cost of raw material

Coffee grounds normally comes from individuals,shops and factories,they throw way those coffee ground.So the cost of coffee waste ground is lower than others.

3. Cleaner property

Unlike other biomass raw material,coffee ground is coming from coffee beans,which must be pre-processed so that both the finished product and byproduct are clean and have no harm to human body.

4. Short growing period

When raw material is wood type,the growing period of trees is about 4 year,while coffee bean only takes half of a year.That means you can get coffee waste material more easily.

Coffee Husk Pellets Application

Power Plant


House Hold BBQ Rack

Centralize Steam boiler

Co-fire with coal in some industrial place

Model MZLH320 MZLH350 MZLH420 MZLH520 MZLH768 MZLH858
Anti-caking Feeder Power 1.5KW 1.5KW 1.5KW 2.2KW 3KW 3KW
Forced Feeder Power 0.55KW 0.55KW 0.55KW 0.75KW 1KW 1KW
Capacity 300-400kg/h 500-700kg/h 1.0-1.2 t/h 2.0-2.5 t/h 2.5-4 t/h 3-4.5 t/h
Pellet Machine Power 37kw 55kw 90kw 110/132kw 250/280kw 280kw
Final Pellet 6-12mm 6-12mm 6-12mm 6-12mm 6-12mm 6-12mm
Related Project
Related News

From Order To Delivery

Checking Order

With the sales contract, the order tracking clerk checks the models and quantities of each machine and spare parts.

Quality Test Before Delivery

Upon completion of the manufacturing of equipment, tthe quality inspector strictly checks quality of every machine with the checklist.

Check Items When Packing

Before packaging and shipment, the order tracking clerk checks the packaged items again with the packing list to avoid loss of items.

Sign the contract

Adopting international common standards for accurate design of product packaging, prevent product damage rate and the effective use of transport tools, which ensure the perfect delivery of products.

Get the minimum offer free of charge, please fill in the following information to tell us (confidential information, not open to the public)



Copyright © 2015-2021 by HENAN RICHI MACHINERY CO,LTD.All rights reserved. Tel:0086-15837153047