This blast freezer is published with the manufacturer’s full specification — 380 V, 450 V, power source Electric. 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 Blast Freezer
- Power Source: Electric
- Power(W): 2200
- Voltage: 380 V, 450 V
- Material: Aluminum
- Finned Material: Galvanized Steel Fins,Aluminum Fin,Hydrophilic Coated Aluminum Fin
- Shell Material: Aluminum zinc coating, stainless steel, hot-dip galvanized,Custom made
Technical Specifications
| Volume(L) | 295L |
|---|---|
| Processing | Expanded Tube Type |
| Operating Temperature | -40-10°c |
| Material | Aluminum |
| Power Source | Electric |
| Core Components | Aluminum finned aluminum tube |
| Voltage | 380 V, 450 V |
| Warranty | 1 Year |
| Machinery Test Report | Provided |
| Video Outgoing-Inspection | Provided |
| Key Selling Points | Energy Saving, Eco-Friendly, Low Maintenance Cost |
| Power(W) | 2200 |
| Place Of Origin | Shandong, China |
| Weight (Kg) | 500 |
| Brand Name | Donghang |
| Dimension(L*W*H) | 4740*1550*2160 |
| Product Name | Floor-standing top-blown air cooler |
| After Warranty Service | Online Video Technical Support |
| Finned Material | Galvanized Steel Fins,Aluminum Fin,Hydrophilic Coated Aluminum Fin |
| Shell Material | Aluminum zinc coating, stainless steel, hot-dip galvanized,Custom made |
| Application Area | Cold Storage, Blast Freezing, Food Processing Plants |
| Air Discharge Type | Top-Discharge / Vertical Air Throw |
| Selling Units | Single item |
| Single Volume | 0 cm³ |
| Single Gross Weight | 0.0 kg |
Product Details
PRODUCT HIGHLIGHTS
- Fully Tailored Technical Options: Price varies strictly according to calculated design specifications. Contact us for an exclusive engineering calculation & custom quote.
- Heavy-Duty Top-Discharge Housing: Constructed from premium aluminized zinc plate, stainless steel, or heavy hot-dip galvanized steel. Engineered for maximum industrial corrosion resistance with a sleek profile.
- Staggered High-Efficiency Coil Block: Utilizes hydraulic expansion technology for maximum uniform tube-to-fin contact. Staggered tube array delivers superior thermodynamic heat exchange.
- Specialized Variable Fin Pitch: Optimized variable fin grouping significantly extends operating cycles between defrosting and ensures uninterrupted, high-efficiency airflow.
- Purpose-Built High-Static Fans: Equipped with heavy-duty axial fans offering massive air volume and long-throw top discharge, making it ideal for large-scale industrial cold storage & blast applications.
- Certified High-Pressure Leak Test: Every unit undergoes rigorous nitrogen leakage testing (up to 30 Bar) before factory dispatch to ensure zero-risk operation.
- Multi-Refrigerant Compatibility: Perfect thermodynamic matching for advanced industrial cooling agents, seamlessly supporting Ammonia (NH3), CO2, and Flooded Freon systems.
- Turnkey Engineering Support: We provide full CAD design sheets, software-calibrated selection sheets, and expert project alignment for global contractors.
Video Description | ||||||||
Heavy-Duty Industrial Coil Module
Heavy-Wall Copper & Aluminum Fins: Mechanical expansion ensures tight, optimal thermal contact and rugged structural integrity across the entire matrix.
Multi-Circuit Distributor: Advanced capillary geometry delivers uniform refrigerant allocation, effectively minimizing dry zones and maximizing evaporator efficiency.
Optimized Staggered Array: Geometrically aligned tube configuration maximizes airflow turbulence and expanding the effective heat exchange surface area.
Heavy-Duty Top-Discharge Fan System
Aerodynamic Deep-Drum Cylinder: Venturi nozzle effect maximizes air static pressure to force a powerful, ultra-long vertical air throw.
Severe-Duty Low-Temp Motor: Fully enclosed, moisture-proof, and IP-rated to guarantee continuous, stable torque under heavy frost conditions.
Dynamically Balanced Blades: Precision-calibrated axial impellers eliminate casing resonance, drastically reducing operational noise and wear.
Advanced Multi-Circuit Capillary Network
The calibrated multi-circuit distributor utilizes advanced capillary geometry highly distinct from standard manifolds. By utilizing tailored capillary tubes for every individual circuit, we ensure expert, optimally balanced hydrodynamic pressure to optimize dry-type industrial cooling efficiency and extend operational cycles.
Geometrically Aligned Staggered Array
Our industrial-scale coils feature a specialized,geometrically aligned staggered tube configuration. This design optimizes airflow turbulence and increases the effective heat transfer surface area by 15%, significantly enhancing dry-type industrial cooling performance without increasing overall coil size.
Engineered Multi-Row Coil Matrix Designed with a high-density, multi-row deep coil configuration that maximizes the effective surface area per unit volume. This heavy-duty structural layout handles high-tonnage thermal loads effortlessly, delivering exceptional enthalpy reduction in demanding cold chain environments.
Heavy-Duty Return Bends Features uniform, machine-bent copper U-tubes with optimized wall thickness. This structural precision minimizes stress concentration points, effectively eliminating refrigerant fatigue leaks caused by long-term compressor vibration and pressure pulsations.
Rigid Endplate Support The entire tube matrix is securely locked into heavy-gauge, corrosion-resistant galvanized endplates. This robust framework provides enhanced structural rigidity to safely absorb intense thermal expansion and contraction stresses during automatic defrost cycles.
Standardized Wiring & Safety Compliance
Engineered with professional, waterproof motor wiring and clear airflow direction indicators. Prominent industrial safety labels guarantee compliant installation and highly reliable, secure operation.
Heavy-Duty Casing & Smart Maintenance
Featuring premium hot-dip galvanized steel (HDG) for ultimate corrosion resistance in humid cold room environments. Factory-applied water quality guidelines ensure hassle-free onsite operation and maximized equipment lifespan.
Inspection Window
Integrated moisture-sealed viewport enables real-time monitoring of internal frost buildup, allowing engineers to check coil conditions instantly without dismantling the heavy housing.
Heavy-Duty Material Processing
Automated uncoiling and leveling lines handle premium raw materials to ensure high structural rigidity and baseline accuracy for refrigeration equipment frames.
CNC Precision Fabrication
High-capacity CNC laser cutting centers execute ultra-precise shaping on all heavy-duty industrial frames, minimizing material waste and ensuring exact dimensions.
High-Precision Bending Execution
Advanced press brakes perform strict automatic bending to minimize structural tolerances, ensuring pristine joint alignment and uncompromising housing rigidity.
Automated Fin & Plate Punching
Continuous hydraulic press configurations synchronize with precision uncoiling systems, dedicated to fabricating burr-free tube-support plates and high-efficiency fins.
Expert Coil Welding & Pressure Test
Multi-layer industrial welding achieves high-strength seamless joints for condensing coils, followed by a strict 3.0 MPa high-pressure leakage test to ensure long-term reliability.
Advanced Modular Assembly
Spanning over an expansive industrial facility equipped with heavy-duty cranes, our lines ensure streamlined handling and high-precision assembly for large-scale equipment.
Lean Production Alignment
Our plant maintains synchronized lean production lines capable of managing massive high-volume modular assemblies simultaneously, ensuring rapid and stable lead times.
Moisture-Proof & Secure Export Packaging
To ensure optimal protection during long-distance ocean transit, our industrial refrigeration equipment is securely sealed with high-strength, multi-layer protective wrap. This heavy-duty barrier effectively isolates moisture, dust, and coastal salt spray.Combined with professional container bracing and reinforced tie-down techniques, our logistics process ensures your machinery arrives clean, intact, and ready for immediate on-site installation.
FAQs
Why is the price shown not my final price?
Industrial floor-mounted cooling units require precise thermodynamic calculations. The final pricing is determined by your specific design parameters, including required cooling capacity, customized dimensions, fin spacing, housing materials (stainless steel/galvanized plate), and motor configurations.
Which refrigerant feeding systems and cooling agents are supported?
Our coil matrices are thermodynamically calibrated to support various system architectures. We seamlessly customize layouts for Direct Expansion (DX) systems, Flooded systems, and Pump Overfeed/Recirculated systems. The metallurgy is fully compatible with Ammonia (NH 3 ), CO 2 , and all standard Freon blends.
How does the top-discharge fan design handle high static pressure?
Large industrial cold storage facilities require deep air throw to eliminate thermal pockets. Our top-discharge units utilize an aerodynamic deep-drum fan cylinder that creates a static-pressure venturi nozzle effect. This layout minimizes blade-tip turbulence, converts rotational energy into directional force, and delivers an ultra-long vertical air throw.
What anti-corrosion materials are available for harsh or hygienic environments?
For severe environments (such as seafood processing, chemical storage, or high-humidity cold chains), we offer aggressive protection upgrades:
Casing options: Heavy-gauge Hot-Dip Galvanized steel, Stainless Steel 304, or Marine-Grade Stainless Steel 316.
Coil options: Epoxy-coated aluminum fins or complete stainless steel tube-and-fin matrices.
What pressure testing and quality control protocols do you enforce?
Reliability is critical to preventing catastrophic refrigerant leaks. Every custom air cooler undergoes a certified high-pressure nitrogen leakage hold test up to 30 Bar within our factory. Circuit symmetry, fluid distribution headers, and brazed capillary joints are checked before final casing assembly.
What is your MOQ, lead time, and engineering support for global contractors?
Our MOQ ≥ 1 unit, fully accommodating custom industrial prototypes and large facility expansions. Standard production lead time is approximately 30 days. We provide international contractors with full CAD design blueprints and software-calibrated selection sheets to guarantee mechanical and thermal alignment before fabrication.
Can the fan motors be customized to match our local power grid?
Yes. We configure the fan motors based on your regional power infrastructure. We support standard industrial configurations such as 3-Phase, 380V–415V at 50Hz or 380V–440V at 60Hz (common in the Middle East and American regions). To ensure perfect electrical compatibility and component safety, please specify your exact local voltage, frequency, and phase when submitting your project inquiry.
How are these units packaged for international shipping to prevent transit damage?
All units are securely wrapped in heavy-duty, multi-layer industrial protective film (PE stretch wrap) prior to dispatch. This specialized wrapping forms a tight, weather-resistant barrier that effectively shields the aluminum fin matrix and steel casing from moisture, dust, and surface scratches during ocean freight. Furthermore, the transparent nature of the high-tensile film allows logistics handlers to clearly see the equipment's structural points, ensuring safe and precise forklift handling during loading and unloading.
Ordering and Pricing
- Minimum order quantity: 1 set
- Volume pricing:
- 1–9 set: US $6600 / set
- 10+ set: US $6288 / set
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this blast 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 blast freezer be supplied for my local voltage?
The standard configuration is 380 V, 450 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.
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