In the fields of organic fertilizer, compound fertilizer, and eco-friendly solid waste treatment, the granulation stage directly impacts both product quality and production efficiency. As a core piece of equipment in fertilizer production, the rotary drum granulator valued for its simple structure, stable output, and broad adaptability is a common choice for chemical fertilizer manufacturing and projects involving the resource recovery of organic waste.It can be integrated with automatic batching systems, crushers, mixers, dryers, coolers, screening machines, belt conveyors, coating machines, and packaging machines to form a complete fertilizer production line.
The structure of the rotary drum granulator is straightforward, consisting primarily of the following components:
The “heart”of the equipment, fabricated from wear-resistant steel plate. The interior can be fitted with lifting flights (to enhance material tumbling) and liners (to minimize wear) as required. Liners are typically made of rubber or acid-resistant stainless steel; they feature self-cleaning capabilities that prevent material buildup, thereby eliminating the need for traditional scraper mechanisms and reducing maintenance costs.
Comprising a motor, a gearbox, and a gear assembly, this system drives the smooth rotation of the drum. Power is transmitted via the meshing of a split pinion gear on the drive shaft with a large ring gear fixed to the drum body.
Supports the weight of the drum body and the material load. Typically made of wear-resistant rubber, these rollers ensure stable operation and facilitate easy installation and removal.
Responsible for the continuous input and output of materials, ensuring the smooth operation of the production line.
Precisely controls the spray volume of binders or water; this is a critical component influencing the granulation rate.
It supports continuous 24-hour operation with an hourly output of 1–30 tons per unit—far exceeding that of disc granulators. It is perfectly suited for large-scale fertilizer production and offers exceptional stability in mass production.
Granules formed via wet agglomeration are round and uniform, possess high hardness, and resist breakage. They offer excellent water solubility and high fertilizer utilization rates, meeting national standards and enjoying strong market acceptance.
It is not limited by raw material types and can produce organic, compound, and bio-fertilizers. Granule size and hardness can be flexibly adjusted to meet the specific fertilization needs of various crops.
The machine features a robust structure with few wear parts, a low-energy-consumption drive system, and a very low failure rate. Daily maintenance is simple, making it far more cost-effective in the long run compared to similar granulation equipment.
It features one-touch start/stop and adjustable parameters, allowing operators to manage the machine after minimal training. It can also integrate with fully automated production lines, significantly reducing labor costs.
Rotary drum granulators feature a simple structure and low failure rates; however, proper daily operation and maintenance can significantly extend equipment lifespan and ensure consistent granulation quality. The following practical solutions address common issues encountered by users:
Usually caused by unstable spray volume or excessive feed rates. Solutions include fine-tuning the spray flow rate, regulating the feed speed, and checking the spray nozzles for clogs (cleaning or clearing them promptly).
Primarily caused by excessive material moisture or severe wear on the drum liner. Solutions include reducing the amount of binding liquid, replacing the liner with wear-resistant, anti-stick material, and promptly cleaning residual material from the drum wall after shutdown.
Caused by worn support rollers, the equipment not being level, or a lack of lubrication in the drive gears. Solutions include regularly lubricating the drive system, leveling the equipment, and replacing worn support roller components.
The Huaqiang rotary drum granulator is an excellent choice for large-scale granulation production. Huaqiang is a professional heavy-industry enterprise integrating R&D, manufacturing, sales, and after-sales service. With over two decades of experience in the granulation equipment sector, the company boasts mature production processes and rigorous quality control systems, backed by a solid and reliable brand reputation.
The granulator achieves a high pelletization rate, producing granules that are round, uniform, and moderately hard—making them resistant to breakage and moisture absorption, which significantly enhances the product's marketability. The machine features an anti-corrosive, wear-resistant lining and a non-stick drum design that eliminates the need for frequent cleaning; it operates stably with a low failure rate, supporting continuous 24-hour production.
Additionally, the rotary drum granulator offers low energy consumption and high output, allows for the recycling of returned material, and entails low maintenance costs. It is suitable for processing various materials, including organic and compound fertilizers, offering exceptional value for money. Complemented by one-stop installation, commissioning, and lifelong maintenance services, it comprehensively helps enterprises reduce costs, improve efficiency, and ensure stable, high-volume production.
| Model | Diameter(mm) | Length(mm) | Inclination(°) | Rotation Speed(r/min) | Capacity(t/h) | Motor Power(Kw) |
| ZG1.2*4.0 | 1200 | 4000 | 2.5 | 17 | 1-3 | 5.5 |
| ZG1.5*6.0 | 1500 | 6000 | 2.5 | 11.5 | 3-5 | 7.5 |
| ZG1.8*7.0 | 1800 | 7000 | 2.5 | 11.5 | 6-10 | 18.5 |
| ZG2.0*8.0 | 2000 | 8000 | 2.5 | 11 | 10-15 | 22 |
| ZG2.2*12 | 2200 | 12000 | 2.5 | 10.5 | 15-20 | 37 |
Our company provides clients with complex fertilizer complete sets of equipment technical service, after many years of research and development experience of the compound fertilizer granulator equipment manufacturing , and the meticulous manufacture of hi
This machine is one of the main (biological) organic fertilizer production equipment produced by our company. It is the fertilizer machinery which has been studied, improved and carefully manufactured on the basis of advanced granulating machine at home and abroad.
This series of granulator is a new patented product developed by our company and the Agricultural Machinery Research Institute. It is designed and manufactured by the new technology of wet continuous push rod granulation.
