Table of Content

1. Introduction to Aqua-feed Production Line

2. Aqua-feed Processing Stages

3. Our Advantages

4. FAQ 

1. Introduction to Aqua-feed Production Line

1.1 Product Categories

Aqua-feed processing covers three major categories:

Freshwater fish feed (e.g., four major Chinese carp species)

Marine fish feed (e.g., grouper, sea bass)

Crustacean feed (e.g., shrimp, crabs)

1.2 Key Process Characteristics

Premium raw materials: High-protein biological ingredients (fishmeal, shrimp shell powder), superior fat sources, low-fiber formulations.

Precision processing: Ultra-fine grinding (80-120 mesh vs. 40-60 mesh for livestock feed).

Nutrient preservation: Low-temperature conditioning, vacuum coating to retain heat-sensitive nutrients.

Advanced equipment: Dual-shaft differential conditioners, extrusion systems for high-fat (6-12%) and high-protein (28-45%) formulations.

1.3 Technical Requirements

Precise temperature control, corrosion-resistant materials, and intelligent batching systems.

Full-process quality control from raw material pretreatment to post-conditioning.

2. Aqua-feed Processing Stages

2.1 Core Solutions

Project planning: Factory layout design based on raw material properties and product positioning.

Process design: Modular integration of extrusion-drying-post-conditioning processes.

Equipment matrix: Twin/single-screw extruders (1-20T/h) + micro-extrusion systems for fry feed.

Smart control: Graded configurations from manual batching to DCS automation.

Technical services: EPC turnkey projects, commissioning, and continuous process optimization.

2.2 Key Equipment & Features

Extrusion systems:

Floating feed twin-screw extruders (1-20T/h)

Sinking/slow-sinking feed single-screw extruders (1-15T/h).

Micro-extruders for fry feed (particle size: 0.5-1.2mm).

2.3 Process advantages

Product range: Carp feed, marine fish extruded feed, shrimp/crab specialty feed, fry starter feed.

Density control: Adjustable expansion rate (30-60%), precise density regulation (300-600g/L).

AI integration: Raw material recognition, self-learning extrusion parameters, energy optimization.

2.4 Aqua-feed Processing Sections

2.4.1 Material Receiving 

• Closed unloading sheds with hydraulic tipping and high-suction dust removal.
• Dual indoor feeding ports (granular and powdered materials).
• Large closed feeding pits with automatic dust suppression.

 2.4.2 Grinding

Two grinding bins (20m³ capacity), equipped with iron-removal feeders and noise-reduction systems.

Iron-removal feeder: Shields grinder components (screens, hammers), minimizing wear.

Fan silencers: Reduce operational noise.

Pulse filters + sealed screw conveyors: Block air leaks, boost efficiency, cut costs.

Quality Control

Pipeline sampler: In-process checks and control room sampling.

Flexibility

Pneumatic valves: Switch bins/grinders for flexible workflows.

Level sensors: Signal grinding completion to operators.

2.4.3 Batching & Mixing

10-12 batching bins (total 120m³), designed for complex formulations.

Dual weighing systems for speed and accuracy.

Hard-gear reducers, double-layer scrapers, and pulse dust collectors to prevent blockages and dust leakage.

2.4.4 Ultra-fine Grinding & Secondary Mixing

Screenless ultra-fine grinders (40-200 mesh adjustable).

Air conveying with cyclone separators and pulse filters for environmental compliance.

Secondary mixing for sensitive additives.

2.4.5 Extrusion& Drying Section

      (1)Key Features:

      Core production stage with two stainless steel pre-extrusion bins (for standard and small-sized pellets), equipped with rotary dischargers to prevent cross-contamination.

    Twin-screw extruders (preferred for formula flexibility and high throughput):

Integrated components: Frequency-controlled screw feeder, dual-speed differential conditioner, and extruder unit.

Automated control system with touchscreen interface for real-time parameter adjustment (feed rate, temperature, steam pressure) and one-touch preset formulas.

    (2)Optional upgrades:

    Density control module for semi-sinking/sinking feeds

    Emission-free dust/exhaust systems to eliminate workplace pollution.

    Horizontal dryers with multi-stage temperature zoning (steam or gas-fired options) for energy-efficient drying.

    Customizable screens (nylon, stainless steel perforated/wire mesh) tailored to material properties.

    (3)Post-Processing:
              Extruded and dried materials advance to the oil coating and cooling stages for final preparation.

2.4.6 Cooling, Screening & Packaging

Counterflow coolers to prevent condensation and mildew.

High-efficiency vibrating screens for impurity removal.

Automated packaging systems with robotic palletizing to reduce labor costs.

3. Our Advantages

Leading-edge core equipment: Internationally advanced extrusion and drying systems.

30+ years of expertise: Experienced engineering team in feed plant design.

Smart manufacturing: AI-driven process optimization and energy management.

Full-service support: Turnkey solutions from planning to post-installation optimization.

4. FAQ

1. Services offered?
Turnkey solutions including plant planning, equipment supply, installation, and commissioning.
2.Single-screw vs. twin-screw extruder?
Depends on formula, product type, and budget. Contact sales for tailored advice.
3.Installation process?
Detailed installation drawings + on-site engineer guidance.
4.Delivery time?
90-120 days (project-dependent).
5. Competitive edge?
Advanced equipment, 30+ years of expertise, and smart manufacturing capabilities.
6.Packaging standards?
Steel pallets or export-grade wooden crates.
7.Buyer preparations?
Civil works, utilities (water, electricity, gas), and site readiness.
8.Additional equipment needed?
Transformer, weighbridge, boiler, air compressor, oil tanks, forklifts, etc.