Making strong, uniform phosphate granules from dusty, acidic raw material is one of the toughest jobs in a fertilizer plant.

The LANE rotary drum granulator for phosphate fertilizer was built to do exactly that.It is one of the most efficient wet-granulation machines in the compound fertilizer industry, shaping SSP, TSP, DAP and NPK premixes into round pellets with a pelletizing rate above 70%.Its acid-resistant lining and steam-heated drum keep the line stable, low-cost and easy to run.

If weak granules, sticky drums or low output are slowing your line, this machine closes the gap between raw powder and sellable phosphate fertilizer.

Key Advantages of the Rotary Drum Granulator for Phosphate Fertilizer

A drum granulator for phosphate fertilizer is designed for one thing: turning dusty acid feed into dense, round pellets at high speed.

Here is what makes it stand out on a real production line.

High output with fewer returns.The machine reaches a pelletizing rate above 70%, so most of what enters the drum leaves as finished granules. The small amount of returned material can be fed back and re-granulated, which keeps the whole line efficient.

A construction made for acid.Phosphate raw materials are corrosive. That is why the LANE drum granulator uses a cylinder welded from high-quality medium carbon steel and lined with rubber or acid-resistant stainless steel. The lining resists corrosion and wear, extends service life, and reduces the sticking that usually slows phosphate granulation.

Steam heating saves energy.Steam supplies the heat for the chemical reaction and lowers moisture after ball formation, so drying is faster. A rubber engineering-plastic inner lining reduces adhesion while providing anti-corrosion and insulation.

Simple to operate and maintain.An automatic scar-removal and tumor-removal design replaces the traditional scraper, so operators spend less time cleaning and more time producing.

Technical Parameters and Working Principle

To size the right rotary drum granulator for phosphate fertilizer, it helps to understand what is inside the drum.

The machine has four main parts:

the cylinder, welded from medium carbon steel plate and lined with rubber or acid-resistant stainless steel;

the transmission, including the main motor, reducer, pulley and drive shaft;

the rolling belts, fixed on both sides to support the whole body and keep the cylinder rotating steadily;

and the support frame, built from medium carbon steel and channel steel with corrosion- and wear-resistant materials for a long life.

The working principle of a rotary drum granulator for phosphate fertilizer is straightforward. Phosphate granulation follows clear steps:

Step 1 – Mix phosphate rock powder or single superphosphate with fillers and a binder.

Step 2 – Feed the mixture into the rotating drum and humidify it with water.

Step 3 – Inject steam, ammonia gas or phosphoric acid solution into the cylinder. For phosphate fertilizer this step drives the chemical reaction and supplies heat at the same time.

Step 4 – As the cylinder rotates, the wet particles are squeezed and compacted until they aggregate into balls.

Step 5 – Dry the granules, screen them, and cool the qualified product before packing.

As a reference, LANE drums are typically built up to about 12,000 mm overall length with a cylinder diameter starting around 600 mm.

Exact dimensions depend on your raw material and capacity, so we configure each drum granulator for phosphate fertilizer line individually.

Application Scenarios

Where does a rotary drum granulator for phosphate fertilizer fit best?Almost anywhere a plant needs continuous, high-capacity granulation.

SSP and TSP production lines rely on a drum granulator for phosphate fertilizer when they need strong, rounded granules that store and spread well. The same machine runs across DAP and NPK compound fertilizer lines at high, medium or low concentration, using either cold or hot granulation.

Because it works by wet granulation with steam or acid reaction, the drum is the natural choice for phosphate materials that need chemical conversion inside the machine.

It also granulates organic soil conditioners and fly-ash powders, so one drum can switch products by season — a real advantage for mixed-product plants.

FAQ

What pelletizing rate can I expect?

The rotary drum granulator for phosphate fertilizer typically reaches a pelletizing rate above 70%, and returned fines can be re-granulated to keep losses low.

Can it handle corrosive phosphate materials?

Yes. The rubber or acid-resistant stainless steel lining is chosen specifically for acidic phosphate raw materials, so the drum resists corrosion and keeps granules consistent.

How is it different from a disc or double-roller granulator?

The drum uses wet granulation with steam or acid reaction, which suits large-scale, continuous phosphate and compound fertilizer production.

Disc granulators are better for small batches, while double-roller machines mainly do dry compaction. Choose the drum when you need high throughput plus heat and chemical reaction.

What capacity can you supply?

The rotary drum granulator for phosphate fertilizer can be built for pilot lines or large continuous plants.We design the drum together with drying, screening and the rest of your SSP, TSP or compound fertilizer line, so capacity is matched to your target tonnage.

Conclusion: Build a Reliable Phosphate Granulation Line

If your goal is stable granules, high throughput and a line that resists acid and saves energy, the LANE rotary drum granulator for phosphate fertilizer is the right starting point.

Whether you need a single granulator or a complete SSP, TSP or compound fertilizer production line, we can provide the layout, an exact quotation and on-site commissioning support.

Send us your raw material, target capacity and plant size — our team replies within 24 hours.