Industrial Tunnel Quick Freezer Machine: A Fast, Hygienic, and Energy-Efficient Freezing Solution

DESCRIPTION / TECHNICAL SPECIFICATIONS

High-Performance Rapid Freezing Solution for the Food Processing Industry

In the frozen food processing industry, freezing speed and uniformity are critical factors in preserving product quality, freshness, nutritional value, and texture. The Tunnel Quick Freezer (Belt Tunnel Quick Freezer) is an industrial-grade rapid freezing system engineered to meet high freezing capacity demands across a wide range of food applications. Combining advanced refrigeration technology with food-safety compliant construction, this machine provides an ideal solution for food manufacturing plants focused on production efficiency and superior freezing results.

Core Functionality and Efficient Working Mechanism

The Tunnel Quick Freezer operates by rapidly and continuously freezing food products along a food-grade mesh belt conveyor inside a highly insulated chamber. The system features a fully enclosed air duct with a unique airflow organization design. This ensures cold air surrounds all sides of the food product evenly, achieving rapid freezing and uniform freezing depth per unit of time. As a result, its heat exchange efficiency is more than 30% higher than traditional freezing methods.

The unit is capable of processing products with an inlet temperature of up to 28 degrees Celsius and reducing the core outlet temperature to minus 18 degrees Celsius, supported by an inner air temperature of minus 37 degrees Celsius and an evaporating temperature of minus 40 degrees Celsius.

Industrial Applications Across Food Sectors

Equipped with variable running speed and continuously adjustable freezing time ranging from 10 to 100 minutes (typically around 1 hour depending on product characteristics), the Tunnel Quick Freezer adapts seamlessly to various frozen food processes, including:

• Meat and Poultry Processing: Cut meat, processed meat, and poultry products.
• Fruits and Vegetables Processing: Fresh vegetables and diced or sliced fruits (such as quick-frozen mangoes and similar produce).
• Seafood and Marine Products: Fish, shrimp, and various aquaculture products.
• Prepared and Convenience Foods: Ready-to-eat meals and diverse frozen food items with lengths ranging from 10 to 20 cm and weights between 100 and 1500 grams.

Key Features and Production Efficiency Benefits

• HACCP Compliant Hygienic Design: Built around the HACCP food hygiene and safety concept, featuring an all-stainless steel internal and enclosure structure. The machine body utilizes a 125 mm thick double-sided stainless steel polyurethane foam insulation board, delivering excellent thermal insulation, easy cleaning, and effective prevention against microorganism reproduction.
• Durable, Energy-Saving Construction: Equipped with an all rust-proof aluminum evaporator for fast cooling speed and energy efficiency. The structural framework incorporates 50x50x2.0 mm stainless steel square tubes, a 2 mm stainless steel internal windshield plate, and a 1.5 mm stainless steel convection air duct plate.
• Reliable Food-Grade Conveyor System: Utilizes a high-strength, wear-resistant food-grade stainless steel mesh belt (standard 1-meter width, with customizable effective widths based on production requirements), driven by a heavy-duty chain transmission mechanism and sprockets. It also integrates an expansion structure adjustment and automatic repair device to prevent mesh belt deviation and loosening, ensuring long service life and stable operation.
• Stepless Variable Speed Control: The mechanical transmission adopts full frequency conversion stepless speed regulation, enabling smooth operation, precise freezing time adjustments, and convenient maintenance.
• Zero Extra Workshop Floor Cost: Engineered so that users do not need to bear additional structural construction costs for the workshop floor.
• Easy Inspection and Maintenance: Features accessible inspection doors and internal channels for convenient routine checks and sanitation. The unique evaporator defrosting and cleaning design allows for rapid and effective maintenance turnarounds.
• Dependable Refrigeration Performance: Operates with R507A refrigerant to deliver a 70 to 100 kg/h output capacity, powered by a German Bitzer hermetic piston compressor unit with an air-cooled condenser and reliable electrical control components.

Main Technical Specifications

• Freezing Output Capacity: 70 to 100 kg/h
• Freezing Time Range: Adjustable from 10 to 100 minutes
• Inner Air / Freezing Temperature: Minus 37 degrees Celsius (tolerance 2 degrees Celsius)
• Product Inlet Temperature: Up to 28 degrees Celsius
• Product Outlet Temperature: Minus 18 degrees Celsius
• Refrigerant: R507A
• Total Power: 6.55 kW
• Cooling Load: 17.5 kW
• Compressor Unit Cooling Capacity: 19.19 kW (Bitzer German compressor, 3P / 380V / 50Hz power supply)
• Conveyor Belt Width: 1 m
• Evaporator Surface Area: 280 square meters
• Insulated Chamber Dimensions: 5.0 x 1.7 x 2.20 m
• Overall Machine Dimensions: 6.5 x 1.7 x 2.20 m

Consult Your Industrial Freezing Requirements with Our Team

Upgrade your food processing line with a hygienic, energy-efficient, and reliable Tunnel Quick Freezer. Contact our technical specialists today to discuss detailed specifications, customized mesh belt widths, and tailored freezing solutions for your manufacturing facility.