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The most profitable form of manure fertilizer

Manure Pellet Machine

Pellets are dust-free, spread evenly through a mechanical spreader, store for months and sell at a premium over powder. The pellet machine is what creates that value — provided the material in front of it has been prepared.

Four wet granulation options and two dry pelleting options
Granulation rate from 70% to 97% depending on method
Binder, moisture and particle size specified for your manure

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At a glance

Feed moisture: 25–35% (wet) or below 5% (dry)
Pellet size: 2–5 mm organic, 4–10 mm flat die
Capacity: 1–20 t/h
Feed particle size: Below 3 mm, ideally below 1 mm

Preparation matters more than the pellet machine itself

Every pellet machine works on the same principle: bring small particles close enough together, under enough pressure or with enough moisture, that they bond. That means the machine can only work with what it is given. Feed it compost with particles above 3 mm and you get irregular lumps; feed it material at 45% moisture and you get a sticky mass that blinds the screen; feed it material at 15% moisture and the particles will not adhere at all.

The preparation sequence is therefore fixed: ferment the manure to maturity, crush it below 3 mm, screen out impurities and oversize, blend in binder and any nutrient additives, and adjust the moisture to the band the granulator needs. Only then does the pellet machine get a chance to perform. In the projects we are asked to troubleshoot, granulation problems are traced back to one of those four steps about nine times out of ten.

The pellet machine still matters, and the choice between types is driven by fibre and moisture. A high-fibre cattle manure compost granulates best in a stirring-tooth granulator, which uses aerodynamic force and mechanical stirring rather than relying on rolling. A dry, sandy compost is easier on a disc. Fully dry material with high fibre — dried poultry litter or straw blends — is best extruded through a flat die, which needs no water at all.

The pellet production route

1. Fermentation

Manure composted to maturity — no re-heating, earthy smell, 25–30% moisture after maturation.

2. Crushing

Semi-wet or chain crushing below 3 mm, and below 1 mm for the best granulation rate.

3. Screening

Removal of stones, plastic and oversize before granulation; oversize returns to the crusher.

4. Mixing

Binder at 1–5%, plus humic acid, trace elements or mineral nutrients if the product carries a nutrient claim. A horizontal mixer gives the most uniform blend.

5. Granulating

Disc, drum or stirring-tooth granulation at 25–35% moisture. Pellets leave the machine at 15–20% moisture.

6. Drying and cooling

Rotary dryer to 12–14% moisture, then a cooling drum to below 40 °C so the bags can be filled without sweating.

7. Coating and grading

Drum coater, then a product screener that separates finished pellets, oversize and fines. Oversize is crushed and re-granulated; fines return to the granulator.

8. Bagging

Automatic weighing and sealing into 25 kg, 40 kg or 50 kg bags, with a palletiser on larger lines.

Pellet machine comparison

Machine	Principle	Feed	Granulation rate	Strengths	Limitations
Disc granulator	Inclined rotating pan	Wet powder, 30% moisture	About 93%	Low cost, easy operation, adjustable size	Capacity limited; sensitive to feed rate changes
Rotary drum granulator	Tumbling in an inclined drum	Wet powder, 30% moisture	About 70%	High capacity, handles organic and compound	Needs a return circuit; lower granulation rate
Stirring-tooth granulator	Aerodynamic force plus stirring teeth	Fibrous wet material	Up to 97%	Best for high-fibre compost, round uniform pellets	Higher power per tonne
Rotary drum churning granulator	Drum plus internal rotating shaft	Wet powder	High	Hard, well-rounded pellets at large capacity	Highest capital cost of the wet methods
Double roller granulator	Two counter-rotating rollers	Dry powder, below 5%	High	No drying needed; ideal for NPK salts	Pillow-shaped rather than round; needs a breaker and screener
Flat die granulator	Die plus pressure rollers	Dry fibrous material	High	Handles dry litter and straw blends	Cylindrical pellets only; high die wear

Why pellets fail, and what to change

Pellets crumble as they leave the machine: too little binder, or moisture below 25%. Raise the binder dose first, then add water in small increments.
Pellets stick together in the drum: moisture above 35%. Reduce the spray rate or blend dry finished product back into the feed.
The screen blinds within minutes: sticky, over-wet material, or too much fine dust. Check moisture first, then add anti-caking material.
A high proportion returns as oversize lumps: feed particle size is too coarse. Improve the crusher rather than adjusting the granulator.
Poor size uniformity: inconsistent feed rate. Add a buffer bin and a variable-speed screw feeder ahead of the granulator.
Pellets crack or dust in storage: dried too fast, or cooled inadequately. Check the dryer outlet temperature and the cooling drum's airflow.

Manure pellet machine is a main element in commercial manure to fertilizer production. After granulation, animal manure will become spherical pellets, which can provide convenience for storage, transportation and application. In terms of types of granulators, their working principles and selection, we will give detailed introduction below.

Four efficient manure pellet machines for commercial organic fertilizer production

Disc granulator

Disc granulator is an important equipment in pan granulator production line. It is suitable for both organic fertilizer production and compound fertilizer production. Its granulation rate can achieve 93%. Even though these pan granulators with different models (they are different on diameters, auxiliary device equipped and side height.), all of them have good performance on operation, granulation and service life.

Compact structure: Its main parts include granulation disc, reducer, motor, pedestal and scraper device. The inner part of disc adopts special materials and its bottom adopt multiple radiation steel plates, which can make disc get rid of deformation. The reducer and motor are connected by flexible belt drive. The pedestal adopts thickened and aggravated, which can provide steady support for the whole machine.

Working process and principle: Organic manure enters granulator form the inner part. With the rotating of disc and involvement of water, the powder gradually become pellets. At the same time, the scraper device will clear materials that stick to the bottom of disc. When the disc rotates, water and centrifugal force will make powder become pellets. In addition, the tilt of disc is adjustable. Smaller tilt and less moisture will make smaller pellets, vice versa.

Features: Easy-to-operate, energy-saving, low investment

If you are interested in this machine, Please contact us!

New type animal manure pellet machine

It adopts wet granulation. Via aerodynamic force generated from rotation of stirring tooth and water, it can make pellets with uniform size and beautiful appearance. Its granulation rate can achieve 97%. In addition, the main body adopts heavy seamless steel pipe, which is durable and sturdy. When the fermented animal manure enters the granulator from the feeding inlet. Then the compost will be mixed, granulated, polished in the main body. In terms of stirring tooth on the rotary shaft, you can maintain and replace it through inspection windows on the main body.

Rotary drum granulator

Just like pan granulator, rotary drum granulator is also available for organic fertilizer and compound fertilizer production. It consists of bracket, driving part, rolling belt, gear and machine body. The driving part provides power for the rotation of main body. The machine body provides a good environment for granulation. Convey belt sends raw materials to the granulator. With the rotation of main body and the involvement of water, powdery manure agglomerate into small particles. Then, these particles will slowly move to the other end along the tilt of granulator. During this process, small particles gradually becomes spherical pellets.

Generally speaking, the inner part of main body is usually lined with PVC plastic plate or stainless-steel plate, so as to effectively prevent adhesion. Its granulation rate can reach 70%, which means less returning fertilizer with small size.

Rotary drum churning granulator

It just like the combination of rotary drum granulator and newly designed manure pellet machine. Both the inner rotary shaft and main body can rotate. When the raw material enter granulator. The interaction between stirring tooth and main body will convert powdery material into small particles. With the moving, they will gradually become rounder and harder. It is one of patent product in Shunxin. You can choose suitable granulator for fertilizer production.

Why do Shunxin manure pellet machines make quality fertilizer pellets?

The granulator itself decides the final quality of fertilizer pellets.

All of Shunxin manure pelletizers are featured with compact structure, easy operation and high granulation rate. On the one hand, we adopt quality material to manufacture granulator, so as to guarantee longer service life and good performance. On the other hand, the structure design of pellet making equipment is compact and reasonable, so as to improve working efficiency as much as possible.

We will make a strict test on performance of pelletizing equipment. In this way, we can make sure that, our customer can receive satisfied equipment.

Where can Shunxin manure pellet machine be used?

Above-mentioned pellet mill machine can be used in:

Animal manure management, including livestock manure management (pig manure, horse manure, cow dung and so on) and poultry manure disposal (chicken manure). You can adopt it to deal with farm waste or in organic fertilizer factory. In addition, we have mini pellet machine for small scale fertilizer production or farm use.

Disc granulator and rotary drum granulator is also suitable for NPK compound fertilizer production. At the same time, you can produce cat litter using bentonite with disc granulator.

What preparations should you do before making fertilizer granules?

Making animal manure compost

The object for granulation usually is the composted animal manure. On the one hand, fermented animal manure almost does not contain harmful substances, such as pathogenic bacteria, eggs and seed weed. On the other hand, composting can convert nutrients in animal manure to materials that can be directly absorbed by plants. Compared with fresh manure, composted animal manure is more suitable for making organic fertilizer pellets. In addition, compost is loose and powdery, which is more convenient for granulation. Therefore, you should compost animal manure firstly.

Crushing and screening compost to guarantee uniform particle size

Because of long-term stack, there must be some caking and bulks, which will affect granulation. In crushing process, Shunxin compost crusher will crush composted animal manure into small particles. And then, the compost screen machine will separate undersized and oversized compost from qualified compost. And the conveyor belt will send unqualified compost to crusher for secondary crushing. In this way, you can realize 100% utilization rate. The uniform and fine compost will improve granulation quality.

Batching and mixing added nutrient elements

As we all know, marketable organic fertilizer has higher standard on nutritional ingredient. Therefore, you need to add extra nutrients to composted animal manure. Here, batching machine can quantitatively supply materials, so as to make sure proper nutritive proportion. Then the mixing equipment will two or more materials evenly before granulation.

Machine gallery

Photographed in our Xingyang workshop and on customer sites. Watermark-free, no phone numbers.

Manure Pellet Machine — Shunxin Fertilizer Machines photo 1

Manure Pellet Machine — Shunxin Fertilizer Machines photo 2

Manure Pellet Machine — Shunxin Fertilizer Machines photo 3

Manure Pellet Machine — Shunxin Fertilizer Machines photo 4

Manure Pellet Machine — Shunxin Fertilizer Machines photo 5

Frequently asked questions

What is the best machine to make pellets from animal manure?

For high-fibre cattle or horse manure compost, a stirring-tooth (new type) granulator gives the highest granulation rate, up to 97%, and the roundest pellets. For a general organic line, a disc granulator is the simplest and cheapest machine that reaches about 93%. For very large capacities a rotary drum or drum churning granulator scales better. For dry material — dried poultry litter or straw blends — a flat die granulator avoids the need for water and drying altogether.

How much binder is needed to make manure pellets?

Usually 1–5% by weight. Starch produces the hardest pellets, bentonite is the cheapest and adds no nutrients, and humic acid or molasses improve the soil effect and support a higher organic-matter claim. The correct dose depends on the fibre and moisture of your compost and is best established by testing a sample of your own material before you order the line.

Are manure pellets better than powder fertilizer?

Commercially, usually yes. Pellets are dust-free, flow through a mechanical spreader, can be stored for months without caking and are easier to blend to a consistent analysis. They also sell for a higher price per tonne in most markets. The trade-offs are the additional capital cost of the granulation section and the fuel cost of drying, which is why a producer with a local powder market is often better advised to start with powder and add pelletising later.

What moisture should pellets have when they leave the pellet machine?

Wet granulation leaves pellets at roughly 15–20% moisture, which the dryer then reduces to 12–14%. Dry granulation with a double roller or flat die machine produces pellets directly at the finished moisture, with no drying stage — which is one of the reasons those methods are attractive where fuel is expensive.

How long does manure take from fermentation to bagged pellets?

Fermentation is by far the longest stage at 10–15 days plus maturation. From mature compost onwards the process is continuous: crushing, screening, mixing, granulating, drying, cooling, coating and bagging normally complete within a few hours, depending on the moisture of the incoming compost and the capacity of the dryer.

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