Caking is a common problem for compound fertilizer. To prevent this problem, the following measures are necessary:

1. Rational collocation of raw materials;

2. Strictly control the moisture content of the finished product, reduce the evaporation of moisture;

3. Strictly control the particle size of raw materials and improve the effect of screening;

4.Use fertilizer rotary cooling machine to decrease the packing temperature to lower than 40;

5. Use fertilizer rotary coating machine to coat the granules with oil or powder anti-caking agents

For manufacturing quality compound fertilizer, you need prominent fertilizer machine. like that of Whirlston Fertilizer Machinery.

There are main eight steps?1.Organic materials fermentation process plays the preliminary but indispensable role in the whole production line. The self-propelled compost turner can accelerate fermentation speed and prevents generation of poisonous and smelly gas. 2. The manure (cattle, sheep, chicken, etc.) after treatment transported directly to the fertilizer mixing machine.3. Delivered to rotary drum fertilizer granulator; after rotation can be made directly small particles of friction material;4.Delivered to the organic fertilizer dryer, and heat from the stove for heat exchange;5. Delivered to the organic fertilizer cooler by natural or forced cold air cooling cold fertilizer;6. Delivery to fertilizer screening machine, large particles after grinding mill were returned to the mixer feeders continue to participate into a ball; 7. After screening qualified products delivered to the fertilizer coating machine; 8. Delivered to the automatic packaging machine to do scale weighing, packaging, warehousing. Whirlston fertilizer plant is a good choice.

I can list some for you like Fertilizer Rotary Cooling Machine, Horizontal Fertilizer Mixing Machine,Fertilizer Crusher Machine, Fertilizer Weighing Packaging Machine,Fertilizer Rotary Drying Machine, Fertilizer Granulator etc.

Each has its advantages: The former is self-propelled,no tractor necessary-optimal utilization of space available while the turning parts of the later and other main working parts are driven by hydraulic system, that’s why we call it hydraulic compost turner. 

I may consider these factors when I choose a fertilizer machine: the manufacturer must be well-known in its own country and has rigid supervision for the production, the machine itself is of good quality and look.Reflection of sales man is in time. Price is reasonable, of course may be not the cheapest.If it is too cheap, I also will doubt the quality. After all, good material has a good price.