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LND
WUYE Machinery
12 months
Customized
Nitrogen
The LND Liquid Nitrogen Tunnel Quick-freezing Equipment is an industrial cryogenic freezing solution engineered for high-value fruit processing, with a primary focus on durian production. Manufactured by IQFJ Machinery, this liquid nitrogen IQF freezer uses ultra-low temperature nitrogen, which has a boiling point of -196°C, as its refrigerant. It delivers rapid, uniform freezing through a continuous belt-driven tunnel system, making it suitable for durian processors that aim to expand export capabilities while maintaining consistent product quality.
IQFJ Machinery specializes in the design, development, and manufacture of quick-freezing equipment, with a long-term focus on liquid nitrogen technology and tunnel freezer systems. The company provides turnkey solutions for food processors across global markets. Each LND unit undergoes comprehensive factory performance testing before delivery, and is built to align with international food equipment quality standards.
When liquid nitrogen comes into contact with the food surface, it vaporizes instantly and creates intensive heat exchange that reduces food temperature at a rate 5 to 10 times faster than conventional mechanical freezing. This ultra-fast freezing process allows products to pass quickly through the critical ice crystal formation zone of 0°C to -5°C, resulting in the formation of fine, uniform intracellular ice crystals.
Small ice crystals do not rupture cell walls, so the original texture, structure, and moisture content of the fruit remain intact. During thawing, juice and nutrient loss are minimized, which helps retain the natural flavor, aroma, and mouthfeel of durian and other frozen food products. This freezing method is particularly useful for high-value produce that relies on sensory quality for market competitiveness.
The equipment is equipped with an automatic temperature control system that adjusts internal chamber temperature to match the specific requirements of different products. It supports continuous production, with a mesh belt conveyor that enables uninterrupted feeding and discharging to fit large-scale industrial operations. The system operates via a PLC control interface, which simplifies daily operation and reduces staff training costs.
Its optimized structural design also reduces unnecessary liquid nitrogen consumption, helping to control ongoing operational costs for commercial users. The lifting structure of the equipment allows for convenient access to internal components during routine maintenance, reducing unplanned downtime for production lines.
Item | Specification |
Model | LND |
Product name | Liquid nitrogen quick freeze |
Refrigerant | Nitrogen |
Temperature range | -40℃-0℃ |
Application | Pasta, fruits and vegetables, seafood, etc. |
Quick freezing time | 10-15 minutes |
Capacity | 500-3000kg/h |
Mesh belt material | Food grade stainless steel SUS304 |
Mesh belt width | 1000-1600mm |
Structural features | Up and down lifting structure |
Voltage | Customized |
Warranty | 12 months |
Beyond durian processing, the LND Liquid Nitrogen Tunnel Quick-freezing Equipment supports a wide range of individual quick freezing applications for industrial production. It is suitable for processing pasta, seafood including shrimp, squid and crayfish, meat products, poultry, and various other fruits and vegetables that require rapid freezing to preserve texture and taste.
The equipment can be integrated into existing food processing lines, and adapts to different production scales from medium workshops to large manufacturing facilities. It serves commercial operations in fruit processing, seafood processing, prepared food production and other food manufacturing segments. For businesses targeting export markets, the consistent freezing effect helps maintain product stability across long-distance transportation and extended storage cycles.
The equipment adopts an up and down lifting structure, which facilitates daily cleaning and regular maintenance work. Its core structural components include an inlet for product feeding, an outlet for finished frozen products, a stainless steel conveyor belt, a PLC control system, a lifting adjustment system, and a reinforced bottom bracket.
All food-contact components are made of food grade stainless steel SUS304, which meets standard food processing hygiene requirements. The lifting structure allows for flexible adjustment according to product size and production line layout, improving overall adaptability across different production scenarios.
Yes. The equipment is available in mesh belt widths ranging from 1000mm to 1600mm, corresponding to a capacity range of 500-3000kg/h. Users can select the appropriate configuration based on their daily production volume. Voltage parameters can also be customized to match the power supply standards of different production facilities.
The conveyor mesh belt and all food-contact surfaces are constructed from food grade stainless steel SUS304. This material complies with universal food safety and sanitation standards for food processing equipment, and supports regular high-temperature cleaning and disinfection to maintain production hygiene.
Each LND unit comes with a 12-month warranty period. All units undergo full performance testing at the factory before shipment to verify operational performance. For industrial clients, the manufacturer provides professional installation guidance and operation training, as well as ongoing after-sales technical support to support stable daily production.
