Category: fertilizer granulator


How Does A Double Roller Granulator Pelletize Your Powdery Materials By Dry Granulation Technology?


In contrast to wet granulation, which requires the use of a liquid binding agent, dry granulation is the process of turning dry powdery materials into granules using extrusion forces. During the process, the tiny powder particles are forced to adhere to each other due to large compression forces, resulting in larger, multi-particle entities, ie. granules or pellets.

Double roller granulators work be forcing fine powdery materials between two counter-rotating rollers with pitted surfaces. As the powdery material is squeezed between the counter-rotating rollers with pitted surfaces, it is compacted into hundreds of separate, dense granules.

A typically double roller fertilizer granulator will produce granules with diameters ranges from 3.5mm to 10mm one at a time. However, a machine designed for large-scale production can produce dozens of granules at the same time. The granulating ratio of double roller fertilizer granulating machines is over 85%, which makes them very efficient machines for a commercial compound fertilizer production line.

The reason why dry granulating methods are popular is that no-drying processes are needed and the machines can operate at room temperature. The result is lower energy costs and fast granulating for fertilizer manufacturers. It’s not hard to see how double roller fertilizer granulators can offer great ROI rates.

Dry type roller press NPK fertilizer granules pelletizer

Dry type roller press NPK fertilizer granules pelletizer

Application And Features Of Double Roller Fertilizer Granulator Machines

1. Fertilizer granules require no drying processes and have 5% moisture content at a maximum.

2. Reliable motor adoption design. No three waste setup. Easy to maintain and stable granulating.

3. Advanced technology and high-grade construction materials ensure no corrosion, easy maintenance and long working life.

4. Versatile machines with wider applications. A truly multifunctional machine.

5. Perfect for producing popular domestic fertilizer formulations such as making ammonium bicarbonate fertilizer, tombarthite fertilizer, ammonium persulfate fertilizer and more.

6. High intensity and uniform fertilizer pellets produced with a high granulating ratio.

7. Can operate at room temperature, so energy costs are considerably reduced.

8. Low noise output during granulating.

There are four main systems that make up a double roller fertilizer granulator: rollet machine rack, transmission systems with connection parts, granulating part, and crushing and separating component. The transmission system consists of a high powered motor that drives a belt pully around reduction gears. The granulating part consists of rotating rollers attached to a driving shaft with specialized bearings and brackets. You can learn more about the other components of a double roller granulating machine by checking out the technical specification sheets of popular models.

The bottom line is that if you are looking to start a large-scale NPK compound fertilizer pellet making business, a double roller granulator would be a great investment. It is one of the best machines for pelletizing large quantities of powdery materials like composted cow manure, poultry manure, etc.

There are many suppliers of dry granulating machines for sale online. Be sure to take your time to research the best suppliers and the best machine models. You don’t want to risk investing in a machine that does not have the output capacity to meet the needs of your fertilizer pellet manufacturing business.

Our Reader Score
[Total: 0 Average: 0]

How To Choose A Suitable Granulation Machine


When it comes to fertilizer granulation, there are a number of different machines that you can choose from. This can make the decision a challenge because all machines will appear to offer what you need. To ensure you choose the right granulation machine for your fertilizer making, you need to consider certain factors.

The Size Of The Machine

The first factor to consider is the overall size of the machine. The size of the granulation machine will determine the output that you are able to achieve. Some machines will provide output information by hour and others will have a large annual output amount.

Regardless of the way this is reported, you will need to know what you should look for. The output should match the needs of your production. Some machines will have an output of 10,000 tonnes per year while others offer 100,000 tonnes per year. Of course, it is important to note that the larger the size of the machine, the greater the costs will be. It is helpful for you to find a professional granulation machine supplier for recommendation.

The Granule Shape

The next factor to consider is the shape of the granules you want. There are 4 granule shapes that you can choose from. These are powdery, columnar, spherical and columnar. The machine you choose will impact the shape of the granules you get.

If you choose a flat die extrusion granulator, you will only be able to get cylindrical granules while a rotary drum granulator will only provide granules in the shape of balls. Double roller extrusion granulators will provide cylindrical granules while the pan granulator will produce balls as well. The shape of the granules you need will vary depending on their use.

The Quality Of The Machine

Once you know the size you need and the granule shape, you have to look at the quality of the machine. Granulation machines are not cheap and you need to ensure it will last for a long time. The better the quality of the materials, the longer it will last.

Before you buy the machine, you should find out what materials are used. Ideally, you will want a machine that uses durable metals and does not have plastic components. You should also find out if the machine has passed any quality certifications.

When looking at the quality of the machine, you should also do some research into the fertilizer granulator manufacturer. The more reputable the manufacturer, the better the machine is likely to be. You should also ensure that they have a good reputation for granulation machines and that their reputation has not been built on other machinery.

The After Sales Service

The after sales service you get is also important. You need to ensure that the manufacturer offers you an after sales service and for how long this will last. Any warranties or guarantees will also need to be clear and information provided in writing.

Choosing the right granulation machine for your fertilizer production is important. There are many factors that you need to consider when looking at these machines. You need to ensure they offer the output you need as well as the right granule shape.

Our Reader Score
[Total: 0 Average: 0]