Dry granulation equipment refers to the fertilizer making machines adopt dry granulation method. They are widely used in all kinds of dry fertilizer pelletizing plants, and the fertilizer pellets always have nice quality and high nutrient. As a professional dry granulator factory, ShunXin fertilizer machinery developed different types of dry granulators.

Flat Die Granulator For Dry Fertilizer

Whether you want to make granular fertilizer in certain sizes or have requirements on the machines specifications, like color, or roller sizes, you can choose the best available one for you fertilizer production industry from us. More detailed information on the dry granulation machine design, technology, working principle, manufacturer and equipment selection, are as follows.

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  • What machine is used in dry granulation?

The main equipment used for dry powder fertilizer granulating is double roller extrusion granulator and flat die extrusion granulator. As their names suggested, they turn fertilizer material into pellets mainly by extruding. So the granulation process needn’t use any additives, raw materials are directly extruded into balls. Then what’s the difference between these two dry powder granulator machines?

1. Double roller granulator

Double roller extrusion granulating machine is the best-sale dry granulation equipment in SX. It can granulate many kinds of fertilizer materials, like sulphur, limestone, organic fertilizer dry powder, etc; the pellets strength can be adjusted freely according to different materials. It’s capacity is about 1-2t/h. It’s truly that the roller granulator is more suitable for small scale compound fertilizer production lines. But if you want a large scale compound fertilizer factory, we can provide you free layout with this machine. Such as one of our customer in Brazil, who wanted to set up a 10t/h extrusion granulator fertilizer line. We made him a free layout of large capacity compound fertilizer line with 6 double roller granulators.

10 to15 ton NPK fertilizer production line

Moreover, choosing our dry roller extrusion granulator, you can make 7 shapes fertilizer pellets with 4-10mm: pillow shape, semicircle shape, stick shape, pill shape, walnut shape, flat ball shape and square bar shape. You just need to tell us which shape you want, and we will customize the roller shape for you.

2. Flat die granulator

The biggest difference between these two dry granulation equipment is the flat die granulator is suitable for making organic fertilizer. For example, you can use it for granulating dry poultry manure, making fertilizer granules from dry animal wastes, etc. In addition, the final organic fertilizer pellets are cylindrical with diameter between 3mm and 8mm. With suitable hardness and compact structure, they are not easy to be affected by water, even in rainy area, the granules produced by our dry flat die organic fertilizer granulator can work well.

As for the capacity of flat dry granulation equipment, the smallest one is SXPM-350 with capacity of 0.5t/h. In mini organic fertilizer producing line, it’s really the most economical dry powder granulator machine for you.

Why most people choose ShunXin dry granulation equipment?

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  • How does the machine of dry granulation work?

As dry granulation machine, both of these two fertilizer granulators make fertilizer granules by extruding. But in fact, it’s quite different about their working principle. So how does each dry granulation machine work?

For double roller granulator, the dry powdery fertilizer materials will be extruded into fine hardness pellets by the two roller sheets. Add the materials through feeding hopper, by opposite rollers extruding, the fertilizer materials can be demoulded and pelletized, and then fall into the crushing chamber. At the same time, the crushing chain in the machine separates the granular but adhesive particles. If you want to make granular fertilizer with certain sizes, our engineer can design the ball socket size according to your requirements. By this way, you can get fertilizer balls with the size from 4 to 10 mm.

Pelletizing Mold inner the Flat Die Granulator
Fertilizer Balls Polishing Machine

Without two roller sheets, the flat die granulator makes fertilizer pellets by the extrusion between roller sheet and granulating mold. Fertilizer materials can be make into long cylindrical pellets. Cut by shearing knives inner the granulator, you can get ideal organic fertilizer granules. More importantly, choosing this granulator, you can also get spherical fertilizer granules. After granulating, you can use a polishing machine. The polishing machine is used for making fertilizer granules more uniform and rounder. It also can make the cylindrical fertilizers into round balls. By this way, the cost of making fertilizer balls is much lower than other granulator.

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  • Why dry granulation is favoured to make fertilizer pellets?

More choices in granular sizes:

Wet granulation equipment always make fertilizer into balls. But dry granulation equipment can turn fertilizer into many specific shapes. That will give customer more choices. And the diameter of granules can also be set in advance. Because of the extruding way of dry granulation, your powder material can be granulated without binder. It will avoid clumping during granulation and greatly improve the granulating rate.

fertilizer granules produced by dry granulation equipment

More Safety and efficient in granulating process:

No binders added to the granular materials. It can make the granulator work more efficiently and continuously/ in a long time. Meanwhile, it also ensures the pure quality of the granular fertilizer. Working in a no binder added environment, the operator can run it more safety.

Simplify the granulating process:

The fertilizer pellets produced by dry granulation method needn’t to be dried or cooled, that will greatly simplify the granulating process, save you a lot of production cost and bring you wonderful income.

What else highlights of our double roller granulator?

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  • How to choose a professional dry type granulator factory?

At first, pay attention to the qualification and scale of the factory.

It’s obvious that the longer the factory is established and the large the scale is, the more worth it is worth knowing and choosing. Since the foundation of ShunXin Machinery in 2005, with 15-year business qualification, we have been the leader in Chinese fertilizer equipment factory for a long time.

Secondly, the design of dry granulation machine.

Dry granulator designed with great technology would have higher quality and makes more profits for you. According to the dry granulation principle, we designed our double roller dry granulator with advanced technology. Shorten the granulating time, improve the granulating rate and ensure the high quality of fertilizer pellets. The materials of which the machine is made are mainly medium carbon steel plate and channel steel. The high hardness of them makes the granulator more wearproof. That will prolong the working life of the machine and reduce your maintenance cost.     

roller sheets of our double roller extrusion granulator
quality parts inner the granulator
stainless steel roller sheets used for the granulator

The last is service.

Good service is an important aspect of improving your user experience. That not only can help you choose you ideal equipment, but also is the guarantee that you can use the machine for a long time. Through 15 years domestic and foreign trade experience, we have attached different kinds of customers. We have also made amounts of orders. According to different questions from customers’ feedback and their assessment, we are constantly improve the relevant service, such the pre-sale service, installation and commissioning guide, operation and maintenance guide and after-sales service. If you want to learn more about our machine and contact us, we will arrange customer service agent to recommend the appropriate equipment for you. And there are technicists help you install and operate the machine. If the equipment has some something wrong, they can also teach you how to deal with the matters.

  • How to choose a suitable equipment for yourself?

1.Based on your raw materials moisture

The dry granulation equipment is suitble for compound fertilizer making plant, and also can be used in some organic fertilizer manufacturing plant. But only of the organic fertilizer raw material moisture is under 10%. If the moisture of your fertilizer material is higher than 10%, we can provide the matched drying machine to help you reduce the moisture content. If your fertilizer material is too dry, we can also equip a spray system for you.

2.What capacities do you need?

Capacity and power are the basis of choosing granulation equipment. As for our roller dry granulator, there are 3 types can be your choices. The first one is 1t/h, it costs 15kw/h. The second one is 1.5t/h, it costs 18.5kw/h. And the last one is 2t/h, it costs 22kw/h. If you care more about energy consumption, the SXDG-1T is suitable for you. Its volume is not very big, it greatly matches with small scale fertilizer making factory. If you have many dry fertilizer material and want to granulate them as soon as possible, you can choose the third one. Its capacity is the largest and the power consumption is acceptable.

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fertilizer machines loading and delivery

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3. How to get a customized one?

Our granulator can make granules that are 4-10mm in diameter. And you have 7 choices of pellets shapes: pillow shape, semicircle shape, stick shape, pill shape, walnut shape, flat ball shape and square bar shape. Maybe you have different materials to produce, you just need to tell us the sizes and shapes you want, we will provide you different roller sheets. And you can choose the suitable sheet when granulating different fertilizer materials. If your ideal pellets shape is beyond that 7 kinds, we can also produce the roller sheet with special shape ball socket.

Model Power (kw) Granule Diameter (mm) Roller Sheet Size (mm) Dimensions (mm)
SXDG-1T 15 3-10 150*220 1450*800*1450
SXDG-1.5T 18.5 3-10 150*300 1450*850*1500
SXDG-2T 22 3-10 185*300 1630*850*1650

If you are attracted by our dry granulation equipment, but want another one with larger capacity, we can customize one for you. Or you can buy more machines, and they can work together to achieve mass fertilizer production.

    If you have any interest or need of our product, just feel free to send inquiry to us!

    Notes: for a better and efficient quotation, if your raw materials are animal manures, minimum processing capacity shall meet 10 ton per day, and the animal farm scale should as follows:

    • Chicken farm:  ≥200,000 chicken
    • Cow Farm: ≥500 cows
    • Pig Farm:≥1000 pigs

    Detailed calculating methods, click here..

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