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TX
WUYE Machinery
Customizable
Fish, meat and fruits.
12 months
Customized
Liquid Nitrogen Quick Freezing Durian Line
Compact structure
SUS304 stainless for food
Low noise operation
Easy to operate
Factory direct sales
Applicable to: Fruits and vegetable.
Key Advantages
Ultra-Fast Cryogenic Freezing with LND
Leverages Liquid Nitrogen at -196°C to achieve the fastest possible freezing rates. This instant crust-freezing minimizes ice crystal formation to the cellular level, perfectly preserving the creamy, custard-like texture and preventing moisture migration that causes sogginess or separation.
Unparalleled Freshness & Flavor Lock
The extreme speed and low temperature of LN2 freezing drastically slows enzymatic and oxidative reactions, the main culprits of flavor loss and off-odor development. This ensures the complex, intense aroma and taste of durian are captured and retained as if freshly opened.
Double-Mode Processing: Whole Fruit & Segments
A flexible line configuration supports both whole durian freezing for premium presentation and segmenting, de-seeding, and IQF freezing of pulp. This versatility allows producers to cater to multiple market segments with one investment.
Continuous, High-Yield Production Line
Designed as a seamless flow from reception, sorting, washing, to freezing and packaging. Continuous operation maximizes throughput during harvest seasons, reduces labor costs, and ensures consistent, hygienic processing from raw fruit to frozen product.
Minimal Product Loss & Maximum Quality
Gentle handling systems and rapid freezing minimize physical damage and drip loss. The LN2 process itself creates a protective atmosphere, reducing oxidation. This combination results in a higher yield of premium A-grade frozen product and an extended shelf life.
Technical Principle & In-Depth Analysis
The Science of Preserving Durian's Essence
The Power of Latent Heat Extraction:
Liquid nitrogen boils at -196°C upon contact with the warmer product. This phase change absorbs a tremendous amount of heat (latent heat of vaporization) from the durian pulp almost instantaneously. This is the key to achieving freezing rates orders of magnitude faster than mechanical systems, which is critical for forming micro-sized ice crystals that cannot disrupt cell walls.
Tailored Process for Whole vs. Segment:
For whole durian, the line may utilize a controlled LND spray or immersion tunnel that rapidly crust-freezes the entire shell and begins penetrating the inner pulp, stabilizing the fruit for long-term storage. For pulp segments, the product is typically conveyed on a belt through an LND immersion freezer or a ultra-cold nitrogen gas tunnel. This direct contact ensures every surface of the sticky, irregularly shaped pulp is individually and completely frozen (IQF) within minutes, preventing clumping.
Integrated Pre-& Post-Freeze Care:
The freezing stage is supported by critical upstream steps: precise ripening sorting, gentle washing, and for segments, efficient shell opening and pulp extraction. Downstream, the frozen product is immediately transferred to cold storage or packaging lines. This integrated, temperature-controlled environment prevents any thermal abuse, ensuring the “just-frozen” quality is maintained from start to finish.
Technical Specifications & Configuration
Typical Line Configuration (Modular Design)
Target Products: Whole Frozen Durian, IQF Durian Pulp Segments (with or without seed).
Process Flow Options:
Option A (Whole Fruit): Reception → Ripeness Sorting → Cleaning → LND Freezing → Grading → Packaging.
Option B (Pulp Segments): Reception → Ripeness Sorting → Shell Opening → Pulp Extraction/De-seeding → Inspection → LND Freezing → Sieving/De-clumping → Metal Detection → Weighing & Packaging.
Core Freezing Technology: Liquid Nitrogen (LND) quick Freezer.
Freezing Rate: Achieves core temperature reduction from ambient to -18°C in minutes instead of hours.
Capacity: Custom-designed based on fruit size and product form (whole/segment).
Capacities from 500 kg/hr to 2,000+ kg/hr.
Control System: Advanced PLC with HMI for precise control of LN2 flow, belt speed, and temperature monitoring. Features data logging for quality traceability.
Hygiene & Construction:Food-grade stainless steel (304/316) for all product contact surfaces. Designed for easy cleaning and moisture resistance.
Elevator/conveyor
Frame:stainless steel square tubes.
Belt:Rubber, PET strap, Stainless steel……
Guard board:Nylon board, Stainless steel……
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