Chicago Fried Chicken Nugget Production Line

Project Overview

Square Technology Group delivered a complete fried chicken nugget processing line up to spiral freezing (including compressor units) for a customer located in the Chicago, Illinois area, USA. The customer specializes in large-scale production of battered and fried chicken nuggets for foodservice and retail markets.

The objective of this project was to establish a highly automated, continuous, and stable production line that ensures consistent product quality while meeting high capacity and food safety requirements typical of the North American market.

Customer Requirements

The customer required a turnkey solution capable of:

• Producing uniformly coated and evenly fried chicken nuggets;
• Maintaining precise frying and freezing parameters for product consistency;
• Integrating frying, cooling, freezing, weighing, and packaging into one continuous process;
• Supporting long-term, reliable operation with industrial-grade refrigeration performance.

Process Flow

The supplied production line follows the process below:

1. Meat Feeding Machine
   Raw chicken meat portions are automatically fed into the processing line at a controlled and consistent rate.
2. Flouring
   Nuggets are pre-dusted with flour to improve adhesion of subsequent coatings.
3. Vibratory Breading Distribution
   Excess flour is evenly distributed and recycled to ensure uniform coverage and reduce waste.
4. Tempura Batter Application
   A tempura batter system applies a light, even coating to achieve the desired texture and appearance.
5. First-Stage Fryer (Tempura Fryer)

• Frying temperature: 392°F (200°C)
• Frying time: 22 seconds
  This stage sets the coating structure and initial color.
  6. Second-Stage Fryer (Tempura Fryer)
• Frying temperature: 392°F (200°C)
• Frying time: 44 seconds
  This stage completes cooking and develops final color, crispness, and flavor.
  7. Ambient Cooling Conveyor with Fans
     Products are conveyed through an ambient cooling section equipped with fans mounted above the belt. This step reduces surface temperature, stabilizes the coating, and lowers the thermal load entering the freezer.
  8. Spiral Freezer (Including Compressor Units)
• Freezing temperature: -37°C (-34.6°F)
• Dwell time: 45 minutes
  The spiral freezer rapidly freezes the fried nuggets, locking in moisture, texture, and appearance while ensuring individual piece separation.
  9. Weighing System
     Frozen products are accurately portioned to meet packaging weight requirements.
  10. Packaging
      Nuggets are automatically packed for distribution to retail or foodservice channels.

Key Equipment Highlights

• Tunnel Fryerswith stable temperature control and precise residence time management;
• Two-stage frying designto optimize coating integrity and internal cooking;
• Ambient cooling conveyor with forced airto improve freezer efficiency;
• Industrial spiral freezer with integrated compressor units, designed for continuous operation and high reliability.

Project Results

After commissioning, the customer reported:

• Consistent product color, texture, and flavor across production batches;
• Smooth line integration from frying through freezing and packaging;
• Improved freezing efficiency due to reduced inlet product temperature;
• Reliable and stable operation meeting daily production demands.

Conclusion

This Chicago project demonstrates Square Technology Group’s capability to deliver integrated fried chicken nugget processing solutions, combining advanced frying technology with efficient spiral freezing and refrigeration systems. The complete line provides the customer with a robust platform for high-quality, large-scale production tailored to the requirements of the North American market.