Large Fish Feed Hammer Mill Overview

This ZW series waterdrop-type Feed Hammer Mill is a high-capacity feed grinding machine designed to process raw materials into fine powder for large-scale fish feed production. With its powerful motor, heavy-duty rotor, and wide grinding chamber, it is ideal for feed mills, aquafeed plants, livestock feed processing, poultry feed plants, and industrial fish farming operations requiring continuous and efficient grinding of bulk materials. It can process various fish feed raw materials. The capacities range from 9 tons/h to 20 tons/h.

Waterdrop Fish Feed Crusher Large Fish Feed Hammer Mill

It is a crucial stage to crush the materials for making fish feed. The crushing process enlarges the surface area of the raw materials, which can help to increase the solubility of the feed in digestive juice and promote the digestion of the animal. Meanwhile, the particle size of the materials will greatly influence the quality and complexity in later processing phases, such as granulation. As the feed grinding process accounts for 50%-70% of the total power consumption in making compound powder feed, the crushing efficiency, to a large extent, determines the production cost. It is an irreplaceable fish feed machine for floating fish feed, sinking fish feed, and pet feed making processes. This large fish feed grinding machine ensures uniform particle size, which is essential for producing high-quality floating or sinking fish feed pellets. It can handle a wide range of raw materials, including corn, wheat, soybean meal, rice bran, fish meal, shrimp meal, and other protein-rich ingredients.

Parameters of ZW Serives Fish Feed Hammer Mill

Model
ZW60B
ZW80B
ZW100B
ZW120B
Diameter of rotors (mm)
660
660
660
660
Spindle rotational speed (rpm)
2980
2980
2980
2980
Linear speed of hammer pieces (m/s)
78
78
78
78
Width of the crushing chamber (mm)
600
800
1000
1200
Number of hammer pieces
112
128
144
156
Power (kw)
55
75
90
110
132
160
Nominal volume flow rate(m³/min)-fine grinding
42
46
55
61
80
100
Nominal volume flow rate(m³/min)-coarse grinding
55
60
72
78
100
130
Ordinary grinding output (t/h)
9
12
14
16
18
20
Fine grinding output (t/h)
2
3.5
4.5
6
8
10

Performance of Droplet Fish Feed Crusher
Note: the output information was tested under the condition: raw material-corn, moisture content≤13%, volume≥0.72 T/m³, Dia. of screen mesh=3mm

Model
ZW60B
ZW80B
ZW100B
ZW120B
Power (kw)
55
75
90
110
132
160
Ordinary grinding output (t/h)
9
12
14
16
18
20
Fine grinding output (t/h)
2
3.5
4.5
6
8
10

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    Large Fish Feed Hammer Mill Working Principle

    1. Raw materials enter through the feeding hopper.
    2. The high-speed rotor spins the hammers, impacting and shearing the materials.
    3. The broken materials are moved along the rotor’s outer edge and go through a continuous collision and friction against the hammer, toothed plate, and sieve.
    4. Particles are broken down and forced through the screen mesh.
    5. The ground material is discharged via gravity and pneumatic suction into the next processing stage.
    Waterdrop Fish Feed Crusher Design Fish Feed Hammer Mill Main Components

    Large Fish Feed Hammer Mill Main Components

    • Feeding Hopper – Allows continuous and controlled feeding of raw materials.
    • Heavy-Duty Rotor & Hammers – High-speed rotor with hardened steel hammers for efficient grinding. The rotor is comprised of the main spindle, pin shaft, hammer pieces, hammer plate, bearings, and bearing housing. It is the main moving component of the pet feed crusher machine.
    • Grinding Chamber – Wide chamber design ensures smooth airflow and high output.
    • Screen Mesh – Easily replaceable mesh plates for different grinding fineness.
    • Discharge Outlet – Can be connected to conveyors, mixers, or pneumatic systems.
    • Base Frame – Rigid steel structure to reduce vibration and improve stability.
    • Operative Door – Open it when exchanging sieve plates or hammer pieces. The specially designed screen press unit makes sieve plate replacement more convenient.
    • Abrasion-resistant Lining Plate – It is designed with replaceable parts to increase the longevity of the fish feed crushing machine.

    ZW Series Feed Hammer Mill Applications

    • Aquafeed Production. For floating and sinking fish feed grinding
    • Shrimp Feed Processing. Grind ultra-fine powder for shrimp & prawn feed
    • Poultry & Livestock Feed. Suitable for animal feed preparation
    • Biomass Grinding. Grind crop residues for biofuel pellet production

    Advantages for Large-Scale Feed Production

    • Handles continuous, heavy-duty operation without frequent downtime.
    • Produces consistent, fine particle size essential for pellet quality.
    • Integrates easily into fully automatic fish feed production lines.
    • Low maintenance cost and long lifespan of wear parts.

    Large Fish Feed Grinding Machine Features

    • High Capacity Output – Can process 9–20 tons per hour, depending on model and raw material.
    • Durable Construction – Adopt dual wear-resistant hammers and thick steel plates for long service life. Excellent abrasion resistance and flexibility.
    • Uniform Particle Size – Adjustable screen mesh size for custom grinding fineness.
    • Energy Efficient – Optimized rotor design reduces power consumption per ton of feed.
    • Overload Protection – Motor overload device and belt-drive safety mechanism.
    • Easy Maintenance – Quick-access doors for fast screen and hammer replacement.
    • Versatile Application – Suitable for fish feed, shrimp feed, poultry feed, and livestock feed production.
    Floating fish feed machines

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      Large Fish Feed Hammer Mill FAQs

      It can grind a wide variety of feed ingredients, including:

      • Corn, wheat, rice bran
      • Soybean meal, fish meal, shrimp meal
      • Oilseed cakes, sunflower meal
      • Other grains and protein-rich ingredients for aquafeed and livestock feed.

      The fineness depends on the screen mesh size used. Typically, screens range from 0.8 mm to 3.0 mm. Smaller mesh sizes produce finer powder, suitable for shrimp or small fish feed.

      Yes. The ZW series feed hammer mill is a pre-grinding machine. It produces uniform powder that can be processed in either floating feed extruders or sinking feed pellet mills.

      Under normal use, hammers can last 1,000–3,000 hours, and screens last 500–2,000 hours, depending on the abrasiveness of the raw materials.

      Yes. The feed hammer mill has quick-access doors that allow fast replacement of screens without disassembling the main structure.

      Absolutely. It can be installed as part of an automatic fish feed production line with conveyors, mixers, extruders, dryers, and packing machines.

      Consider:

      • Desired production capacity (t/h)
      • Type of raw materials
      • Required particle fineness
      • Available motor power and electricity supply
      • We can recommend a model based on your production goals.

      The large model has higher capacity, more powerful motors, wider grinding chambers, and stronger hammers. It is designed for commercial-scale aquafeed plants, whereas small fish feed grinding machines suit household or small farm use.

      Both options are available. For large-scale production, we recommend automatic feeding hoppers or screw feeders to ensure consistent material flow and stable grinding output.

      For best results, raw materials should have a moisture content of 10%–14%. Excessive moisture can cause clogging, reduced grinding efficiency, and increased wear on parts.

      Yes, but materials with more than 15% fat may require pre-treatment (such as cooling or mixing with drier ingredients) to prevent clogging and sticking inside the mill.