Двухвалковый экструзионный гранулятор

The double roller extrusion granulator is a hot selling equipment for making fertilizer into granules. Both for производство комплексных удобрений и производство органических удобрений. Because it adopts dry granulation method, which can produce fertilizer pellets without drying. The powder material is rolled and formed into fertilizer granules at one time, so it is an ideal choice for industrial fertilizer granulation plants. Кроме того, ЮШУНЬСИНЬ double roller pelletizer has features of longer service life, высокая скорость грануляции, wide applications, и т. д..

Double roller press granulator for sale
Double roller press granulator for sale

Основные параметры

  • Емкость: 1-4 т/ч
  • Feeding moiture: 5%-20%
  • Размер гранул: 3-10 мм
  • Скорость грануляции: 97%
  • Материал оборудования: Carbon steel Q235 + 20CrMnTi or 4Cr13
  • Приложение: Making granule from powdery dried manure, nitrigen fertilizer, phosphate fertilizer, бентонит, industrial salt, и т. д.

Why so many fertilizer pellet manufaturers buy double roller extrusion granulator?

With the development of technology, there are various fertilizer granulating machines on the market, each has its own advantages to attract customers. Но, there are so many granular fertilizer manufacturers choose to buy double roller extrusion granulator, especially for compound fertilizer making. Почему? From the customersfeedback, there are main 3 причины:

1-4 t/h Various capacities

In order to fully meet your requirements of different capacities of fertilizer granule manufacturing, we especially design various models double roller pellet machines. Including the 1t/h, 1.5 т/ч, 2т/ч, 2.5т/ч, 3t/h and 4t/h.

95% Скорость грануляции

It can produce particles at the room temperature without drying and form them at one time. Поэтому, this compound fertilizer granulating machine can granulate faster and its granulation rate is as high as 90% или больше.

Quality fertilizer pellets production for you

With the roller extrusion granulator machinery, you can freely choose to process fertilizer into granules of 3-10 мм, required shapes, high hardness, и т. д..

roller extrusion granulator machinery of 2 TPH and 4 ТПХ
roller extrusion granulator machinery of 2 TPH and 4 ТПХ
fertilizer pelletizer with 95% скорость грануляции
fertilizer pelletizer with 95% скорость грануляции
Роликовый пресс-гранулятор для удобрений
Роликовый пресс-гранулятор для удобрений

Technical parameters of YUSHUNXIN double roller granulator

МодельВласть (кВт)Granule Diameter (мм)Roller Sheet Size (мм)Размеры (мм)
SXDG-1T153-10150×2201450×800×1450
SXDG-1.5 T18.53-10150×3001450×850×1500
SXDG-2T223-10185×3001630×850×1650
SXDG-2.5T223-10245×2201700×1000×1670
SXDG-3T303-10200×4001960×980×1760
SXDG-4T373-10250×4001960×980×1760

How about the fertilizer granules produced by double roller press granulator

If you want to know the quality of a granulator or whether it is suitable for you, one of the most direct methods is to see whether the finished pellets meet your needs. В общем, double roller extrusion granulator can produce fertilizer granules with features as follows:

3-10 размер мм

В общем, the granulated fertilizer size depend on the size of ball sockets on roller sheets. Здесь, with YUSHUNXIN roller sheets, you can choose to prepare fertilizer pellets from 3mm to 10 mm freely.

Various shape

Besides size, we also can offer you roller sheets with different shape ball sockets. Так, besides flat ball shape, you can produce fertilizer particles with pillow shape, овал, square bar shape, форма палочки, форма ореха, и т. д..

High hardness 15-20 Н

Кроме того, because of the dry extrusion granulation method employment, the granular fertilizer produced by roller granulator has a high hardness – 15-20 Н

Long storage time

Окончательно, because of high hardness and low moisture, it has a lower possibility of materials sticking and caking, and is convenient for storage and shipment.

Roller press machine sheets for 2 mm compound fertilizer granules making
Roller press machine sheets for 2 mm compound fertilizer granules making
Double roller granulator for 8 mm chemical fertilizer pellets production
Double roller granulator for 8 mm chemical fertilizer pellets production
Fertilizer roller press granulator with bar shape ball sockets
Fertilizer roller press granulator with bar shape ball sockets

If granules produced by the granulator can meet your needs, it is your ideal granulating machine.

Get more details of double roller granulation machine!


What method does double roller press granulation adopts?

YUSHUNXIN double roller press granulator adopts extruding granulation, which is also known метод сухой грануляции. Как следует из названия, it mainly relies on the physical extrusion force between the rollers to press fertilizer powder into granules. There is nearly no water involved.

double roller prlletizer working principle
double roller prlletizer working principle

The function of extrusion is to displace the air between particles and make the distance between particles close enough to generate attractive forces. Such as van der Waals forces, adsorption forces, crystal bridges, and inline connections, which can combine the particles together. Таким образом, you can directly turn dry powder into granules without adding additives (like water) and produce granules at the room temperature without drying. So it can provide you a fertilizer granulation technology with simpler process and lower energy consumption.


How does the double roller granulator work in your fertilizer granules production?

It is necessary for you to understand the working process of double roller granulator, if you want to prepare required fertilizer granules efficiently. В общем, он содержит 4 части:

  • Первый, when it starts to granulate fertilizer material, electromotor will drive the belt pulley. Then the belt is transmitted to the driving shaft by the speed reducer. So the driving shaft will operate synchronously with the passive shaft, which makes the double roller pellet mill start working.
  • Затем, feeding the powder material to the top hopper of the fertilizer granulation machine. The roller sheets will rotate relative to each other. The dry material will agglomerate and becomes a dense and hard mass (cake) under pressure.
  • Следующий, there are a pair of stirring shafts to break down the pressed fertilizer cake into single granular fertilizer. This is the final fertilizer pellets you plan to produce.
  • Кроме того, to endure the fertilizer granulation cake is fully dispersed, we especially equip the double roller extrusion machine with a screen. Which only allows the single granulated fertilizer to pass through.
Roller sheets for fertilizer granules pressing
Roller sheets for fertilizer granules pressing
Stirring teeth on double roller press machine
Stirring teeth on double roller press machine
Screen for better roller fertilizer granulation
Screen for better roller fertilizer granulation

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What kind of fertilizer granules can double roller pelletizer process?

When you want to buy a proper машина для гранулирования удобрений, it is necessary to know what materials can the machine dispose of. Is it designed for compound fertilizer pellets making? Can we produce granular organic feritilizer with the powder pelletizing machine?

Compound fertilizer granules production

Initially, the double roller extrusion granulator is dsigned for making chemical fertilizer pellets. Поэтому, it is suitable for zinc sulfate, potassium sulphate (СОП), хлорид калия, ammonia chloride, ammonia sulfate, magnesium sulfate, sodium chloride, и т. д.

Compound fertilizer production materials
Compound fertilizer production materials
animal manure waste used in organic fertilizer production
animal manure waste used in organic fertilizer production

Organic fertilizer pellets making

But in 2010, YUSHUNXIN upgraded the roller extrusion pellet machine. Так, now, it can also make fertilizer granules from organic compost. Whether it is chicken manure compost or cow dung compost, и т. д.. Но, because of dry granulation employment, your material water content must be lower than 20% before fed into the roller extrusion machine.

Can the roller press machine granulate phosphate rock powder?

Конечно. Как упоминалось выше, if keeping the moisture of raw materials at 5%-20%, double roller granulating machine can make granules from almost all powder materials. Поэтому, it is also an ideal choice for phosphate fertilizer granule making, snow melt agent granulation, bentonite pellets production, и т. д..

phosphate rock fertilizer pressing granules
phosphate rock fertilizer pressing granules
Snow melt agent granulation
Snow melt agent granulation
bentonite granules from roller press granulator
bentonite granules from roller press granulator

Get more details of double roller granulation machine!


Is there roller granulation line for large-scale fertilizer production?

Кроме того, for these commercial fertilizer extruded granules manufacturers, there are also quality supporting equipment to achieve continuous, high-efficiency fertilizer production.

A typical roller extrusion granulation line includes batching equipment, grinders, система смешивания, роликовый пресс-гранулятор, просеивающая машина, coating unit, and automatic packing system. The dry pressing granulation process eliminates the need for drying and cooling equipment, significantly reducing energy consumption and operational cost. Depending on configuration and automation level, the dry granulation line price usually falls between USD 80,000 and USD 300,000. Но, with reasonable design, it can support fertilizer granulation plant setup of 1 t/h to 20 т/ч. Так, it suitable suitable for both small and large fertilizer granules making projects.

small fertilizer granulation plant with roller granulator
small fertilizer granulation plant with roller granulator
20 TPH roller extrusion pellet system layout
20 TPH roller extrusion pellet system layout

Inquiry your own roller press granulation plan immediately!


How long can double roller pressing granulator work?

How long can double roller pressing granulator work is another touchstone for the quality of a fertilizer pelletizer. And it is closely related to the double roller pellet machine manufacturing materials. В общем, YUSHUNXIN double roller pressing granulator is made of 3 types of material.

Листовой ролик из стали 20CrMnTi.
Листовой ролик из стали 20CrMnTi.
  • The main body материал usually adopts high quality boiler steel Q235, which has characteristic of good welding performance and certain alkali corrosion resistance and oxidation resistance.
  • Для roller sheets material, you can choose to use 20CrMnTi or 4Cr13 stainless steel alloy according to your needs. The former has an economical price, the latter has a better performance in erosion-resistance.

В общем, the machine can work 8-10 hours per day and provide service for several decades years. But the roller sheet is a wearing part, you need to change it every six months to one year. You need to pay attention to regular maintenance. Proper maintenance can prolong its service life.


Can YUSHUNXIN offer me replacement roller sheets for the dry extrusion granulation equipment?

Конечно. As a equipment manufacturer for turnkey fertilizer making projects, with a $1,000-$2,000 payment, YUSHUNXIN will offer quality replacement parts for the double roller granulator.

Кроме того, also components of bearings, motors, couplings, screens, и т. д.. Более того, you can spare parts of all equipment in the whole double roller granulation process. Such as sieving screen, crushing blades, mixing shafts and so on. Come to get details now!

granulator roller sheets carving equipment
granulator roller sheets carving equipment
quality spare parts of double roller press granulator offer from YUSHUNXIN
quality spare parts of double roller press granulator offer from YUSHUNXIN
spare screens for fertilizer sieving equipment
spare screens for fertilizer sieving equipment

Inquiry your own roller press granulation plan immediately!


How to adjust double roller extrusion granulator to improve fertilizer quality?

In the granulation process of using the double-roll granulator, sometimes the particles are not spherical or the powder leaks too much. В это время, you can adjust these two parts of the double roller extrusion granulator to improve fertilizer quality.

Gap between the rollers adjustment

In the process of производство удобрений, sometimes it is necessary to increase the output or bite angle. At this time, you need to increase the distance between the two compression shafts. Then the distance between the driving shaft and the passive shaft becomes bigger. The steps are as follows:

  • Stop the machine and remove the frame above the two bearing seats.
  • Adjust the adjustment plate between the two bearing seats to the required thickness.
  • The distance between the two rollers cannot make the wheels collide. So you need to keep the minimum between 0.3-1 мм.

Alignment of ball socket

The ball socket is contist of the pits on the surface of the main roller. So if you want to improve fertilizer quality, you must pay attention to axial alignment and circumferential alignment.

The axial alignment has been adjusted during installation

Вообще говоря, the possibility of adjustment is not large. If you need to adjust it, you can tighten or loosen the glands on both sides of the passive bearing seat, so that the dislocated sleeve can move and correspond to the active shaft.

The steps of circumferential alignment

Первый, you should loosen the 6 connecting bolts of the driven gear and the adjustment sleeve, so that they can slightly disengage with each other. Then you can correct the circumferential direction by tightening or loosening the two adjustment bolts with a hand wrench. Кроме того, our engineers have already thought that customers may need to adjust the ball socket when designing the roller granulator. Поэтому, they have reserved sufficient adjustment distance. So the dislocation can be adjusted no matter how much the dislocation is. Окончательно, you need to test the adjustment effect. Because the ball socket is too small, you can place a carton board between the two rollers during testing. After rollingyou can know whether the adjustment has achieved the purpose by seeing it. After alignment, you can tighten the 8 connecting bolts.


Кроме, there are also many other fertilizer granulation machines for your choice. Like economical дисковый гранулятор, большая емкость вращающийся барабанный гранулятор, гранулятор органических удобрений нового типа for hard round fertilizer making, и т. д.. Welcome to contact us for the best fertilizer pelleting equipment for you!

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