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Twin Screw Feed Extruder
Manufacturer for Aquafeed & Pet Food

the products Gamma Offer you

Twin Screw Feed Extruder with Advanced Differential Conditioner: The Ultimate Solution for High-PDI Aquafeed & Pet Food

Wuxi Gamma (Gamma Tech) pairs the M Series Twin-Screw Extruder with our TC Series High-Strike Conditioner to deliver superior cooking and stability for aquafeed and pet food.Engineered for Performance. Built for Durability. From 0.6mm shrimp feed to premium kibble, we provide the stability your production line demands.

gamma Twin Screw Feed Extruder
Twin Screw Extruder
gamma conditioner for extduer
Double Layer Conditioner

Parameter Table

Model Screw Diameter (mm) L/D Ratio Main Motor (kW) Capacity (t/h) Applications
GM-3 100 20:1 132 2.5 - 3.5 Pet Food / High-end Aquafeed
GM-6 132 20:1 250 5.0 - 7.0 Medium Scale Aquafeed Line
GM-8 138 20:1 200 7.0 - 9.0 Cost-effective Production
GM-10 175 20:1 315 8.0 - 10.0 Mainstream High-capacity Line
GM-12 146 20:1 355 11.0 - 12.0 Large Industrial Project
GM-16 155 20:1 560 16.0 - 17.0 Ultra-high Capacity Solution

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pls provide us your raw material type ,along with capacity information and Feed Type you required ,so we can choose the suitable Extruder model for you . with this information we can give you offer very quickly ,act now !
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Vedio
Structure
Principle
Application
Maintaiance
Flow Chart
Case Study

Vedio of Feed Extruder

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     Features:

  • High Capacity and Low Energy Consumption:Newly designed M series Twin screw extruder, the design team has more than 25 years of design experience ,industrial leading screw configuration technology and prodcution application technology which can give the best equipment configuration and the best screw confirguation for different production formula requirements, the production capcacity is 15-20% higher than similar mode in china market . 
  • Wide Processing Range and Lown Production Cost: twin screw extruder can produce floating and sinking fish feed shrimp feed etc
  • Beautiful shaped ,uniformly expanded particles : high efficiency conditioning technology ,better homogeneous and flexible application wIth different discharging outlet to have higher capacity and beautiful shapes of pellets .

Main Components of Twin Shaft Feed Extruder

gamma twin shaft feed extruder
gamma ddc conditioner for feed extruder
gamma feed extruder water amd steam adding platform

Twin Screw Extruder Components

the Wuxi Gamma (Gamma Tech) GM Series Twin-Screw Extrusion System is a high-performance integration of three essential units: the DDC (Differential Diameter Conditioner), which acts as a master pre-treater by using twin-shaft mixing to ensure 90%+ starch gelatinization; the Precision Steam & Water Injection Skid, which serves as the system’s “control center” to accurately balance moisture for perfect pellet buoyancy; and the High-Torque Extruder Host, featuring up to 550kW of power and 5-second rapid pressure buildup to mold uniform, high-durability feed. Together, these components form the industrial standard for large-scale feed mills in Saudi arabia and Vietnam, maximizing output while significantly reducing energy consumption.

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Principle of Feed Extruder

The Wuxi Gamma (Gamma Tech) GM Series Twin-Screw Extruder operates through a high-precision, four-stage extrusion process designed for maximum nutrient digestibility and pellet quality:

First, the pre-mixed and finely ground raw materials enter the Anti-Bridging Bin, which ensures a steady, blockage-free flow of ingredients. From here, the Feeder uniformly delivers the material into the DDC (Differential Diameter Conditioner). This is where the magic starts—as the material is thoroughly mixed with metered steam, water, and liquid additives, achieving over 90% starch gelatinization through extended retention time.

Once conditioned, the material moves into the Extrusion Assembly. In the Feeding Zone, the twin screws provide initial compression and rapid transport. As it hits the Kneading Zone, intense mechanical shearing and mixing transform the ingredients into a molten, cooked state. Finally, in the Final Cooking Zone, extreme pressure and temperature finish the ‘cooking’ process, denaturing proteins and homogenizing the texture. The result is a perfectly shaped, high-PDI pellet, extruded and cut to precision—a technology currently powering high-output feed lines for our partners in Saudi Arabia and Egypt.”

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Application

Gamma Tech’s GM Series Twin-Screw Extruder is engineered for versatility across high-demand feed sectors. As showcased in the application photos below, our robust technology delivers precision processing for aquafeed, producing high-stability sinking and floating feed for fish and shrimp. It is also the preferred choice for premium pet food, ensuring optimal digestibility and shape for dog and cat kibble. Furthermore, the GM series excels in producing textured soy protein (TSP) for the food industry. Trusted by major producers in Saudi Arabia and Egypt, Gamma Tech provides the reliable industrial extrusion solutions needed for diverse, high-capacity production lines.

gamma floating fish feed extrusion

Floating Fresh Fish Feed Extrusion

gamma protein extrusion

Soya Protein Extrusion  

gamma pet food extrusion

Pet Food Extrusion

gamma sinking fish feed extrusion

Sinking Fish Feed Extrusion

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Feed Extruder Maintainance

At Wuxi Gamma, we understand that downtime is costly. Our GM Series Twin-Screw Extruders are designed for durability, but regular maintenance and quick troubleshooting are essential for high-capacity production in Saudi Arabia, Egypt, and beyond. Below is our professional guide to resolving common extrusion issues.

Troubleshooting Issue Potential Root Cause Expert Maintenance Solution
Low Barrel Temperature Clogged steam pipes or low conditioning temperature Clean steam jackets and increase conditioning temp to 80°C-90°C
Rough Pellet Surface Poor conditioning or insufficient grinding fineness Check DDC retention time and improve raw material pulverization
Decreased Output Worn screw elements or pressure rings Inspect and replace high-wear screw parts and pressure rings
Uneven Pellet Length Incorrect cutter speed or dull blades Adjust the VFD cutter speed and replace worn-out blades
Poor Expansion Rate Insufficient starch gelatinization or low screw speed Increase RPM and ensure steam injection is properly metered
gamma twin extruder maintainance

Preventive Maintenance for Industrial Extruders

To maintain the high-PDI quality required for premium aquafeed and pet food, follow these core maintenance steps:

  • Screw & Barrel Inspection: Regularly check for wear on the twin-screw assembly. Replacing worn parts early prevents capacity drops and energy waste.

  • Steam System Cleaning: Ensure the Steam & Water Injection Skid is free of scale buildup to maintain precise temperature control.

  • Lubrication Management: Use high-grade industrial lubricants for the high-torque gearbox to ensure smooth power transmission under heavy loads.

  • Grinding Fineness Control: Always verify that raw materials are ground to the correct particle size before entering the Anti-Bridging Bin.

Aqua Feed Extrusion Flow Diagram

Aqua Feed Extrusion Prodcution Line
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At Wuxi Gamma (Gamma Tech), our integrated aquafeed production lines are engineered to maximize nutrient availability and water stability. Below is the stage-by-stage industrial process of our specialized extrusion systems.

1. Raw Material Receiving & Cleaning Section

The process begins with the rigorous cleaning of raw materials. Our high-efficiency magnets and vibratory screens remove impurities, ensuring that only pure ingredients enter the production flow, protecting the downstream high-speed hammer mills.

2. Primary Grinding & Batching System

Achieving the correct particle size is vital for aquafeed. Our system utilizes precision batching scales and primary grinding to ensure a consistent base mix, which is essential for the delicate balance of proteins and lipids in fish feed formulas.

3. Fine Pulverization (Micro-Grinding) Section

Aquafeed requires a much finer texture than livestock feed. Our Ultra-fine Pulverizers grind materials to a micro-level, ensuring that every pellet has a smooth surface and high structural integrity, which is critical for sinking or floating stability.

4. Secondary Mixing & Micro-Additives

In this stage, specialized micro-ingredients (vitamins, enzymes, and medication) are blended. Our high-precision twin-shaft mixers ensure a CV (Coefficient of Variation) of less than 5%, guaranteeing uniform nutrition in every bite.

5. Advanced Extrusion & DDC Conditioning

This is the core of the Gamma Tech system. Raw materials enter the DDC (Differential Diameter Conditioner) for intensive steam treatment and starch gelatinization. The Twin-Screw Extruder then shapes the feed under high pressure and temperature, allowing for precise control over the expansion rate (floating vs. sinking).

6. Drying & Cooling Section

To ensure a long shelf life and prevent mold, pellets pass through our Multi-Pass Circulating Dryer. This energy-efficient system gently removes moisture while maintaining the nutritional profile of the heat-sensitive ingredients.

7. Vacuum Coating & Nutrient Infusion

For high-energy aquafeed, we utilize Vacuum Coating Technology. This process forces oils and essential nutrients deep into the core of the pellet, preventing oil leakage in the water and improving the Feed Conversion Ratio (FCR).

8.Finished Product Packing

The final product is cooled and sent to the automated bagging station. Our systems offer precision weighing and high-speed sealing, ready for distribution to the global market.

Case Study

Industrial 5TPH Pet Food Production Line: Excellence in Extrusion & Vacuum Coating Technology,At Wuxi Gamma (Gamma Tech), we don’t just sell machines; we deliver high-performance production ecosystems. We are proud to showcase our latest 5TPH pet food extrusion project, featuring a seamless integration of advanced processing technology and industrial durability.

Process Excellence & Project Quality:
As seen in the installation photos, this line is anchored by our high-torque Twin-Screw Extruder, designed for precise nutrient retention and optimal expansion. The project flows into our multi-pass Energy-Efficient Dryer, ensuring uniform moisture control, and concludes with our state-of-the-art Vacuum Coating System. This vacuum technology is the key to deep-core oil and enzyme absorption, ensuring premium kibble quality that meets international standards.

Full Turnkey Capability:
This project demonstrates our complete plant engineering capability. From the initial structural workshop layout to the final commissioning of the vacuum sprayers, our team provided a comprehensive solution tailored to the client’s specific capacity and formula requirements.

Client Satisfaction:
The high-quality stainless steel finish and the stability of the 5TPH output have earned high praise from our client. Their satisfaction stems from our commitment to CNC-precision manufacturing and our ability to provide on-site technical support in markets like Saudi Arabia, Vietnam, and beyond.

gamma pet food extruder
gamma pet food dryer
gamma pet food extrusion
Price for Pet Food Production Line?
gamma pet food vaccum coater
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Elevate your feed production with Gamma Tech’s 5TPH Integrated Solutions. Specializing in high-performance aquafeed and premium pet food lines, our turnkey systems feature advanced twin-screw extrusion and vacuum coating technology for superior pellet quality and nutrition.

From site design in Vietnam to full-scale operation in Saudi Arabia and Egypt, we deliver the industrial reliability your mill requires.

Ready to optimize your production capacity? Contact our engineering team today for a customized technical proposal and quotation.

gamam aqua feed extruder
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