Essential Equipment for Making Fish Amino Acid Liquid Fertilizer (Fish Hydrolysate Production Line Guide)

Fish amino acid (FAA) has become a popular input in organic farming due to its rich nitrogen content and excellent plant-boosting properties. For manufacturers looking to set up a fish amino acid liquid fertilizer production line, choosing the right equipment is crucial for efficiency, product quality, and cost control. Below is an overview of the essential machines used in a modern fish hydrolysate plant, along with alternative names and commonly searched keywords to maximize visibility.

1. Crushing and Pre-Processing Equipment

Whole fish waste, trimmings, or by-products must be reduced to smaller particles before enzymatic hydrolysis.
Common equipment includes:

  • Fish waste crusher / organic material grinder / wet material pulverizer
  • Bone-breaking mill for viscous feedstock

These machines help create a uniform slurry that improves enzyme contact and fermentation efficiency, which is essential in liquid fertilizer processing.

2. Enzymatic Fermentation Tank

A stainless-steel fermentation tank—also called a liquid fertilizer fermenter, enzymatic digester, or biofermentation reactor—is the core equipment for producing high-quality fish amino acid fertilizer.
Key features to look for:

  • Temperature control for stable hydrolysis
  • Agitator for consistent mixing
  • Anti-corrosion inner walls
  • Ports for enzymes and nutrient additives

A good fermentation system significantly impacts the nitrogen level, smell reduction, and stability of your fish protein liquid fertilizer.

3. Mixing and Homogenizing System

After fermentation, the product still needs proper blending to achieve a uniform liquid. Equipment options include:

  • Liquid mixer / high-shear mixer / agitator tank
  • Inline homogenizer for consistent viscosity
    These machines help dissolve molasses, amino acids, or stabilizers added during the conditioning stage.

4. Solid–Liquid Separation (If Required)

Some producers prefer clearer FAA products. For that purpose, a dewatering machine can be used:

  • Screw press separator
  • Filter press or fine mesh screen

These solutions enhance clarity and remove coarse residues, improving the product’s storage performance.

5. Storage and Maturation Tanks

Fish amino acid usually requires a short aging period, so storage tanks—also known as buffer vessels—are essential.
Key functions:

  • pH stabilization
  • Odor reduction
  • Sediment control

HDPE or stainless-steel tanks are both commonly used in liquid organic fertilizer plants.

6. Filling and Packaging Unit

For commercial sales, an efficient liquid fertilizer filling machine is needed.
Options include:

  • Semi-automatic liquid fillers (small budget)
  • Fully automatic bottle filling lines (large-scale production)

These machines handle bottling, capping, and labeling to streamline final packaging.

Choosing the right fish amino acid fertilizer equipment not only increases productivity but also ensures a stable, market-ready product with high nutrient value. If you want， welcome to visit： https://www.liquidfertilizerplants.com/products/fish-protein-liquid-fertilizer-manufacturing/