With the rapid growth of organic agriculture, more investors are looking for reliable ways to convert cow manure into high-value biofertilizer granules. Among various technologies, a drum granulation biofertilizer production line is widely recognized for its stable output, high capacity, and suitability for large-scale projects.

Below is a practical, step-by-step guide to setting up a cow manure biofertilizer drum granulation line, focusing on equipment selection and process flow.

Step 1: Cow Manure Collection and Pre-treatment

Fresh cow manure usually contains high moisture and impurities. The first step in cow manure biofertilizer production is solid-liquid separation and impurity removal.

Key equipment includes:

• Manure dewatering machine

• Screening equipment for stones and debris

Reducing moisture content improves fermentation efficiency and lowers energy consumption in later stages.

Step 2: Aerobic Composting and Fermentation

Composting is the core of biofertilizer manufacturing from cow manure. During aerobic fermentation, harmful pathogens are eliminated while beneficial microorganisms multiply.

Common composting solutions:

• Groove type compost turner

• Windrow compost turning machine

Controlled temperature, oxygen supply, and fermentation time ensure stable organic fertilizer quality before granulation.

Step 3: Crushing and Formula Adjustment

After fermentation, composted cow manure is crushed into uniform powder. At this stage, functional additives such as beneficial bacteria, humic acid, or mineral nutrients can be added.

This step directly affects the final biofertilizer granule quality and nutrient balance.

Step 4: Drum Granulation Process

The processed material enters the drum granulator, where rolling motion and liquid spraying form uniform fertilizer granules.

Compared with disc granulation, drum granulation technology offers:

• Higher output capacity (5–30 t/h)

• Better adaptability to organic materials

• Continuous and stable production

This makes it ideal for medium and large-scale cow manure biofertilizer plants.

Cow manure solid biofertilizer production line

Step 5: Drying, Cooling, and Screening

Fresh granules contain residual moisture and require drying. A rotary dryer reduces moisture, while a cooler stabilizes granule strength.

Oversized or undersized particles are screened out and recycled, improving yield and reducing waste.

Step 6: Coating and Packaging

A fertilizer coating machine improves storage performance and prevents caking. Final products are then packed using automatic or semi-automatic bagging machines.

This step completes the cow manure drum granulation biofertilizer production line.

Investment and Solution Advantages

A complete cow manure biofertilizer drum granulation plant typically requires an investment between $200,000 and $600,000, depending on capacity and automation level. Contact YUSHUNXIN to get the production plan.

Key advantages include:

• High-value conversion of livestock waste

• Stable granule quality

• Strong scalability for future expansion

Setting up a cow manure biofertilizer production line with drum granulation is not just an environmental solution, but also a profitable business model. Choosing the right equipment configuration and process design is the key to success. If you need a business plan, welcome to visit: https://www.biofertilizerproduction.com/product/cow-dung-biofertilizer-making-line/