The industrial tunnel freezer listed here carries 220 V, 380 V, refrigerant R-717, R-404A, documented exactly as the manufacturer publishes it. Made by Shandong Donghang Refrigeration Co., Ltd. (1 year on the platform, typical reply ≤1h). Send your target quantity and destination for a firm quotation with current lead times.
Key Features of This Industrial Tunnel Freezer
- Power(W): Customized
- Voltage: 220 V, 380 V
- Freezing Capacity: 150~2000kg
- Refrigerant: R-717, R-404A
- Warranty: 1 Year
- Place Of Origin: Shandong, China
Technical Specifications
| Type | Tunnel Freezer |
|---|---|
| Temperature Control | -40℃ to 0℃, -45-0°c |
| Refrigerant | R-717, R-404A |
| Voltage | 220 V, 380 V |
| Compressor Brand | Hanbell |
| Warranty | 1 Year |
| Door | Single Door |
| Machinery Test Report | Provided |
| Video Outgoing-Inspection | Provided |
| Core Components | compressor, evaporator, Evaporative condenser |
| Key Selling Points | Energy Saving, Long Service Life, Competitive Price, Eco-Friendly |
| Power(W) | Customized |
| Place Of Origin | Shandong, China |
| Weight (Kg) | 600 |
| Brand Name | Donghang |
| Dimension(L*W*H) | 825*367*350 |
| Product Name | Tunnel Quick Freezer |
| Freezing Capacity | 150~2000kg |
| Freezing Time(Min) | 10-100 Adjustable |
| Marketing Type | Hot Product |
| Applicable Industries | Manufacturing Plant |
| Application | Frozen Food |
| Function | Quick-freezing Food |
| Selling Units | Single item |
| Single Volume | 0 cm³ |
| Single Gross Weight | 0.0 kg |
Product Details
PRODUCT HIGHLIGHTS
- Advanced IQF Technology: Ultra-fast freezing (down to -35°C/-40°C) locks in cell moisture instantly, preserving food texture and minimizing drip loss.
- Hygienic & Heavy-Duty Build: Constructed entirely with food-grade SUS304 stainless steel and top-tier components (e.g., Bitzer/Copeland compressors) for 24/7 continuous industrial operations.
- Optimized Energy Efficiency: Advanced airflow circulation and high-density insulation panels reduce cold air leakage, saving up to 20%-30% in energy costs.
- Multi-Category Food Application: Highly versatile system designed for seafood (shrimp, fish), meat/poultry, prepared foods (dumplings, pastries), and fruits & vegetables.
- Factory-Direct Customization: Tailored tunnel lengths, belt widths, and capacities to perfectly fit your specific factory layout and production targets.
Video Description | ||||||||
Industrial Structural Engineering
100% Food-Grade SUS304: The entire framework, enclosure panels, and conveyor system are constructed from high-grade stainless steel to meet strict global food hygiene standards. Ergonomic & Accessible Design: Features large, heavy-duty insulated maintenance doors, allowing operations teams to easily access the interior for rapid cleaning, washing, and sanitization. Stable Continuous Processing: Heavy-duty driving mechanisms ensure smooth, vibration-free operation of the mesh belt under full-load conditions.
Scientific Airflow & Thermal Exchange
Symmetric Cross-Flow Circulation: High-static-pressure axial fans work in tandem with the inner baffles to force high-velocity freezing air uniformly through the products, eliminating any "blind spots." Ultra-Fast Core Freezing: Optimized air loop geometry locks in food moisture instantly, drastically reducing food weight loss (drip loss) and preserving premium product texture. Advanced Evaporator Coil Layout: Large fin-spacing design dramatically slows down frost accumulation, ensuring consistent cooling capacity and reducing downtime for defrosting.
Plug & Play Integrated Refrigeration Unit
World-Class Compressor Backing (Bitzer/Hanbell): Equipped with world-renowned Bitzer or Hanbell high-efficiency compressors, providing unparalleled volumetric efficiency, rock-solid operational stability, and an exceptionally long lifespan under continuous ultra-low temperature deep-freezing conditions. Fully Integrated "Plug & Play" Layout: The entire refrigeration skid, auxiliary piping, and electrical control cabinet are completely assembled, wired, and vacuum-tested in our factory. This advanced configuration slashes overseas on-site installation time and labor costs by over 70%, eliminating complex field welding. Heavy-Duty Double-Layer Enclosure: Designed with heavy-duty, double-layer insulated maintenance doors that feature perfect airtight sealing to prevent thermal bridging. The spacious internal layout allows engineering teams effortless and rapid access for routine inspections and maintenance.
High-Efficiency Evaporative Condenser
Advanced Heat Dissipation: Combines the cooling principles of water spraying and air circulation to achieve superior heat rejection, significantly lowering the system's condensing pressure. Ultimate Water & Power Savings: Designed with an optimized water distribution system and high-efficiency fans, reducing water consumption and slashing overall energy costs by 20% – 30% compared to traditional air/water-cooled condensers. Heavy-Duty Industrial Lifespan: Features a robust, hot-dip galvanized steel or stainless steel frame and premium cooling coils, built to withstand harsh outdoor weather and high-load industrial environments 24/7.
High-Efficiency Industrial Evaporator
Premium Material & Zero Leakage: Constructed with high-grade aluminum or stainless steel coils and heavy-duty casing, ensuring maximum corrosion resistance and absolute safety against refrigerant leaks. Variable Fin Spacing Design: Professionally engineered with large and variable fin spacing to significantly slow down frost accumulation. This allows for prolonged continuous tunnel operation without frequent defrosting cycles. Rapid Thermal Exchange: Optimized coil layout maximizes the airflow contact surface, accelerating ultra-fast core freezing while effectively maintaining food moisture and reducing drip loss.
High-Capacity Production Base Operating a standardized industrial manufacturing facility equipped with advanced automated assembly lines.
We ensure stable continuous production and strict engineering compliance, delivering high-performance refrigeration hardware directly from our factory to fuel your business growth.
Featuring structured, ultra-dense heat-exchange coil matrixes engineered for optimized thermal kinetics. Every single structural joint undergoes expert, multi-layer industrial welding to achieve seamless molecular bonding, providing ultimate pressure resistance tailored to withstand our strict 3.0 MPa high-pressure leakage test.
Utilizing advanced CNC fiber laser cutting technology to achieve micron-level precision across all stainless steel plate fabrications and structural frames. The automated, heat-calibrated beam guarantees flawlessly clean edge profiles and zero thermal deformation, establishing a rigorous foundation for perfect component alignment and airtight tunnel sealing.
Driven by high-tonnage precision metal stamping and automated heavy-duty bending stations within our standardized, large-scale production workshop. This industrial-grade processing capability ensures absolute structural consistency, superior component rigidity, and a rugged chassis assembly capable of enduring decades of continuous, high-load operations.
Heavy-Duty Export Logistics
Every modular split-body unit is optimized for standard shipping containers to minimize ocean freight costs. All units are securely prepared with heavy-duty protective wrapping and professionally lashed/reinforced inside the container or truck. Complete documentation is provided to ensure a secure transit and seamless, plug-and-play positioning on your job site.
FAQs
Are you a factory or a trading company?
We are a verified, professional industrial refrigeration manufacturer established in 2013. Our large-scale production base is equipped with advanced automated assembly lines, robotic welding arms, and precision CNC fiber laser cutting centers. This allows us to provide factory-direct cost structures, rigid quality compliance, and flexible OEM support.
Why is the price shown not my final price?
Industrial tunnel freezers are highly engineered, project-based systems rather than standard off-the-shelf items. The final quotation depends heavily on your specific processing capacity (ranging from 150 kg to 2000 kg/h+), cooling capacity calculations, material selection (SUS304/SUS316), and component choices (such as Bitzer or Hanbell compressor configurations).
Are you a factory or trading company?
Yes, 100% of our tunnels are custom-built in strict accordance with your engineering blueprints and technical requirements. To deliver a tailored solution, we precisely configure the system based on:
1. Type of frozen products: Seafood, meats, poultry, pastries, or fruits and vegetables.
2.Production capacity: Required output per hour or per day.
3.Thermal kinetics: Freezing time, inlet/outlet product temperatures, and target core freezing temperature.
4.Site constraints: Available factory footprint (Size: Length × Width × Height) and local power supply standards (e.g., 380V/50Hz, 460V/60Hz).
How do you ensure the energy efficiency and reliable sealing of the freezer?
Our tunnels feature a perfect air distribution system utilizing rational air volume management and high-efficiency, low-noise axial fans to accelerate core freezing while preventing food dehydration. Structurally, we use heavy-duty insulated panels with multi-layer high-density injection to eliminate thermal bridging. Every evaporator coil matrix undergoes a rigorous multi-stage 3.0 MPa pressure leakage test before enclosure to guarantee continuous, zero-leak operation under extreme low-temperature loads.
How is the equipment shipped, and how do we handle overseas installation?
To drastically reduce your on-site labor and time costs, we offer a highly integrated "Plug & Play" layout. The refrigeration skid, internal piping, electrical control cabinets, and sensors are pre-assembled, wired, and fully vacuum-commissioned in our factory before dispatch. For ultra-large systems, we ship in modular sections that easily lock together on-site. Every shipment includes complete English technical manuals, wiring schematics, and 24/7 remote video guidance from our engineering team.
What is your Minimum Order Quantity (MOQ) and standard delivery time?
Our Minimum Ordering Quantity is 1 set. The typical manufacturing, assembly, and whole-machine low-temperature testing cycle is 30 to 45 days, depending on the customization complexity and specific project scale.
What are your accepted terms of payment?
We standardly accept T/T (Telegraphic Transfer) and L/C (Letter of Credit) at sight. For verified long-term partners, regional distributors, and project contractors managing commercial bids, flexible and structured payment terms can be negotiated to optimize cash flow and protect regional market health.
Ordering and Pricing
- Minimum order quantity: 1 set
- Volume pricing:
- 1–4 set: US $17700 / set
- 5–9 set: US $16899 / set
- 10+ set: US $15999 / set
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this industrial tunnel freezer?
The standard minimum order quantity is 1 set. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.
Can the industrial tunnel freezer be supplied for my local voltage?
The standard configuration is 220 V, 380 V. Alternative voltage and frequency builds are available when specified at the time of order.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Shandong Donghang Refrigeration Co., Ltd., based in China. The company 1 years as a verified Alibaba.com supplier, operates its own manufacturing. Browse the full Shandong Donghang Refrigeration Co., Ltd. range on HVACR Nexus.
See more in Freezing Equipment on HVACR Nexus.
