Lynxcool, a leading China manufacturer and supplier of high-quality refrigeration equipment, offers the Twin-Drum Spiral Freezer, engineered for continuous IQF freezing of multi-SKU products. This energy-efficient, hygienic equipment supports batch operation, dual-drum conveyors, and fast, reliable freezing for meat, seafood, baked goods
The Twin-Drum Spiral Freezer from China Lynxcool is a state-of-the-art freezing solution designed to meet the demands of modern high-throughput food processing facilities. Built for efficiency, versatility, and hygiene, this industrial freezer provides a dual-drum, continuous IQF (Individually Quick Frozen) system capable of handling multiple SKUs simultaneously, delivering rapid freezing without compromising product quality. It is engineered for a broad range of food types, including meat, poultry, seafood, ready-to-eat meals, and baked goods.
Key Features and Technological Advantages
The Twin-Drum Spiral Freezer integrates advanced engineering and practical design to enhance productivity and minimize operational costs. Its primary technological advantages include:
Dual-Drum, Dual-Helix Conveyor Architecture
· Two independent spiral conveyors housed on separate rotating drums.
· Conveyor belt spirals upward on drum 1, transfers to drum 2 at the top, and spirals downward.
· Double the conveyor length and freezing time with a footprint only 30–40% larger than a single-drum system.
· Ideal for thick products or high-volume applications requiring extended dwell times.
Shared Refrigeration System
· A single refrigeration system supports both drums, reducing capital investment and energy consumption per kilogram of product.
· Components include screw compressor, condenser, evaporator coil array, EC fan system, and PLC control system.
· Factory-integrated and tested for seamless operation.
Multi-Product Freezing Capability
· Supports batch operation for simultaneous freezing of two different products.
· Each drum maintains independent dwell times with a uniform conveyor speed.
· Maximizes equipment utilization in multi-SKU production environments.
Hygienic and Easy-to-Maintain Design
· Compliant with EHEDG standards for food safety.
· Open-frame structure facilitates cleaning.
· Drum transfer sections and conveyor disassembly are tool-free, ensuring thorough CIP (Clean-in-Place) cleaning.
Technical Specifications
Parameter
Value / Range
Freezing Throughput
1,000 kg/h — 10,000 kg/h (model-dependent)
Number of Drums
2 (twin-drum); single continuous belt path
Freezing Method
IQF air blast — continuous; twin-helix belt path
Air Temperature Inside Freezer
−30°C to −40°C (setpoint-controlled)
Air Velocity Across Product
3 — 5 m/s (recirculating centrifugal fan system)
Product Inlet Temperature
+20°C to +30°C
Product Core Temperature at Discharge
−18°C (standard IQF specification)
Belt Type
Stainless steel flat-wire mesh; self-stacking on each drum
Belt Width
400 mm — 1,500 mm (model-dependent)
Total Belt Tiers (both drums combined)
16 — 60 tiers
Drum Diameter (each drum)
1,800 mm — 4,500 mm (model-dependent)
Drum Drive
Common variable-speed gearmotor; belt positively driven by drum surface
Total Freezing Time Range
10 — 60+ minutes (adjusted by belt speed)
Evaporator Configuration
Stainless steel fin-and-tube coil; hot-gas or water defrost
Refrigerants
R404A / R507A / R448A / R449A / R717 (ammonia)
Compressor Type
Open-type or semi-hermetic screw (integrated or remote plant)
Evaporation Temperature
−35°C to −42°C
Defrost Method
Hot-gas defrost (standard); water defrost (option)
Defrost Frequency
Typically every 8–12 hours; PLC-managed auto cycle
Split-Product Operation
Supported: two products on drum 1 and drum 2 simultaneously
Product-Contact Material
AISI 304 stainless steel standard; 316L for high-chloride environments
Approx. 8,000 × 6,000 mm (L × W); height approx. 5,500 mm
Refrigeration and Operational Details
The Twin-Drum Spiral Freezer utilizes an advanced refrigeration system optimized for high efficiency and performance.
Component
Description
Screw Compressor
Industrial-grade, high-efficiency compressor for consistent low-temperature performance.
Condenser
Air-cooled or water-cooled options depending on facility requirements.
Evaporator Coil Array
Uniform airflow distribution ensures even freezing across all product layers.
EC Fan System
Energy-efficient fans that maintain optimal airflow and minimize power consumption.
PLC Control System
Centralized monitoring and control with programmable freeze cycles and alarms.
Standard Refrigerants: R404A, R507A, R448A, R449A, R717 (ammonia).
Operating Modes: Continuous IQF and batch freezing for multi-product flexibility.
Footprint Efficiency: Only 30–40% larger than equivalent single-drum systems while doubling freezing capacity.
Applications Across Industries
The versatility of this equipment allows it to serve multiple sectors within the food industry:
Meat and Poultry
· Suitable for thick meat patties, bone-in poultry chunks, and other large protein cuts.
· Freezing time ranges from 20–45 minutes depending on product thickness.
Seafood Processing
· Capable of freezing shrimp, whole fish chunks, crab, and other seafood items without compromising texture.
Ready-to-Eat Meals
· Ideal for frozen cooked meals, tray-packed foods, and containers with sauces or liquids.
Baked Goods
· Freezes filled breads, puff pastries, and other bakery products, preserving shape and consistency.
Performance, Testing, and Quality Assurance
Lynxcool emphasizes reliability and trustworthiness in everyTwin-Drum Spiral Freezer:
Test Type
Purpose
Conveyor Belt Test
8-hour continuous operation to ensure mechanical stability.
Refrigeration Performance Test
Confirms freezing capacity and temperature uniformity.
PLC Logic Verification
Ensures proper automation, safety interlocks, and alarm functions.
Maintenance and Service
· Open-frame design enables easy inspection and cleaning.
· Tool-free conveyor belt removal reduces downtime during maintenance.
· Full CIP cleaning capabilities for strict hygiene compliance.
· Global spare parts support and 48-hour emergency on-site service.
· Optional extended 3-year warranty for enhanced peace of mind.
Advantages for Food Processing Facilities
· Cost-Effective: Dual-drum system reduces energy and capital costs compared to two single-drum freezers.
· High Efficiency: Shared refrigeration system and optimized airflow enhance freezing speed.
· Multi-SKU Flexibility: Batch operation allows two products to be frozen simultaneously with independent dwell times.
· Hygienic Design: Tool-free disassembly and full CIP support reduce contamination risks.
As the manufacturer behind theTwin-Drum Spiral Freezer, Lynxcool stands for innovation, precision, and trustworthiness. Every unit reflects our expertise in refrigeration technology, from integrated design to rigorous factory testing. Clients worldwide rely on our equipment for high-throughput freezing, tailored solutions, and robust support services. With Lynxcool, your food processing operations benefit from a proven partner committed to long-term reliability and continuous improvement.
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