40ft Mobile Cold Storage Unit — Containerized Deep Freeze for Global Perishable Cold Chain
Fully self-contained, factory-commissioned 40-foot refrigerated container. Maintains precise temperature from -25°C to +10°C with 100mm polyurethane insulation. 380V/50Hz 3-phase, R449A eco refrigerant. Deployable in hours — no on-site assembly.
At a Glance
The xnair 40ft Mobile Cold Storage Unit delivers 65 cubic meters of temperature-controlled space within a standard ISO 40-foot container footprint. Factory-pre-commissioned with a Copeland® scroll compressor, 100mm rigid PU panels, and a digital PID controller, this unit reaches setpoint within 90 minutes of power-on. Designed for post-harvest agriculture, pharmaceutical cold chain, food processing, and large-scale catering.
Technical Specifications
All measurements reflect the standard configuration. Custom dimensions, voltage, and temperature ranges available upon request. Internal volume accounts for 100mm insulation on all six faces.
| Parameter | Specification |
|---|---|
| External Dimensions (L×W×H) | 12,192mm × 2,438mm × 2,896mm (40ft × 8ft × 9.5ft) |
| Internal Usable Volume | ≈ 65 m³ (2,295 ft³) — after insulation deduction |
| Temperature Range | -25°C to +10°C (-13°F to +50°F), ±1.5°C uniformity |
| Insulation Panel | 100mm rigid PU sandwich, density 40±2 kg/m³, B2 flame-retardant |
| Compressor | Copeland™ hermetic scroll, T-Class tropicalized (ambient up to +52°C) |
| Refrigerant | R449A (GWP 1,397) — EU F-Gas compliant; R404A optional |
| Power Supply | 380V / 50Hz / 3-phase (dual-voltage 220V/60Hz & 480V/60Hz configurable) |
| Door Configuration | Rear double-leaf with heated door frame gasket (anti-frost) |
| Flooring | Anti-slip aluminum tread plate with T-channel drainage |
| Lighting | Explosion-proof LED, IP65, 400 lux |
| Controller | Digital PID with RS485 Modbus, remote alarm, USB data logging |
| Empty Weight | ≈ 6,200 kg (13,670 lbs) |
| Certifications | CE, ISO 9001:2015 |
Application Scenarios — Where the 40ft Unit Delivers
This mobile cold storage unit is deployed across four high-volume procurement sectors globally.
Agriculture & Post-Harvest Produce Storage
Placed directly at farm collection points, the unit eliminates the thermal gap between harvest and centralized cold storage. Rapid pulldown to 0°C–4°C preserves berry firmness and reduces post-harvest loss by up to 30% based on field data from Southeast Asian fruit cooperatives.
Pharmaceutical & Vaccine Cold Chain
Configured for the strict 2°C–8°C pharmaceutical band, the unit supports GDP-compliant storage with redundant refrigeration and continuous USB data logging. Suitable for vaccine buffer stock, clinical trial material staging, and last-mile distribution in regions with unreliable grid power.
Food Processing & Frozen Storage
Operating at -18°C to -25°C for frozen meat, seafood, and ready-to-cook products, the unit integrates seamlessly with processing lines. The anti-slip aluminum floor supports pallet jack access, while the heated door gasket prevents ice lock in continuous-access environments.
Global Adaptability — Engineered for Regional Extremes
Africa & Middle East — High Ambient Temperature Readiness
Units are equipped with T-Class (tropicalized) condensers rated for ambient up to +52°C. Condenser fan motor is upsized by 20%, fin spacing widened to 3.2mm to resist sand and dust fouling. Optional solar-compatible DC inverter drive available for off-grid sites.
Europe & North America — Regulatory Compliance & Low-GWP Refrigerants
Standard refrigerant is R449A (GWP 1,397), compliant with EU F-Gas Regulation. All units carry CE marking with full Declaration of Conformity. UL-listed control panels available for US/Canadian markets.
Southeast Asia & South America — High Humidity, Corrosion & Rough Terrain
External steel cladding receives a triple-layer anti-corrosion coating (zinc-rich primer + epoxy intermediate + UV-stable polyurethane topcoat). Corner castings reinforced for twist-lock lifting on uneven ground. Oversized drainage handles 95% RH condensation loads.
Engineering & Construction Details
Panel Construction & Thermal Integrity
- 100mm rigid PU foam, zero-ODP cyclopentane blowing agent
- 0.5mm embossed aluminum internal skin, food-grade
- 0.6mm galvanized steel external skin with anti-corrosion coating
- Continuous aluminum foil vapor barrier on both PU faces
- 3mm hot-dip galvanized steel corner brackets at all 8 internal corners
- PVC thermal breaks at panel joints to reduce cold bridge condensation
- Triple-fin EPDM door gasket with embedded heating wire
- Floor load rating: 2,500 kg/m² distributed, pallet-jack compatible
Logistics & Shipping — Built for Intercontinental Transport
Ocean Freight & Multi-Modal Handling
- ISO-standard 8-corner castings compatible with twist-locks and crane spreaders
- Compressor skid bolted to reinforced floor with vibration-damping neoprene pads
- Export packaging: shrink-wrapped with VCI film plus plywood crate for condenser
- Port of origin: Shanghai, China — direct connections to 200+ global ports
- Transit insurance included; pre-shipment photo/video inspection provided
Frequently Asked Questions
How long does on-site installation take after delivery?
The unit arrives fully pre-commissioned and factory-tested. On-site setup typically requires 2–4 hours: crane offloading onto a level pad, connection to the 380V/50Hz power supply via the included industrial cable, and a brief system check. No refrigerant charging or panel assembly is needed.
Can the temperature range be customized for pharmaceutical storage (2°C–8°C)?
Yes. The digital controller is configured with a 2°C–8°C deadband and validated with a 9-point temperature mapping test. A backup refrigeration redundancy option is also available for GDP-compliant pharma logistics.
What spare parts are included and how is overseas after-sales support structured?
Each unit ships with a 24-month consumable spare parts kit (compressor contactor, fan motor, door gasket, fuses, filter drier). xnair provides remote video diagnostics within 24 hours and critical parts express dispatch via DHL/FedEx to any global destination within 5–7 business days.
Is the 40ft unit stackable?
The standard unit is non-stackable, but a reinforced stackable variant with upgraded corner castings and twist-lock compatibility is available on request. It undergoes additional structural load testing at 1.5× rated stack weight.
Quality Control & Certifications
Factory Acceptance Test (FAT) Protocol
- Ambient +30°C to -25°C pulldown time verification (target ≤90 min)
- 48-hour steady-state temperature stability test with 9-point mapping
- Compressor current draw and insulation resistance test at 500V DC
- Door gasket smoke-pencil leak test and heated frame activation check
- Full defrost cycle validation and drainage flow test
Applicable International Standards & Certifications
- CE Marking — compliant with Machinery Directive 2006/42/EC, EMC Directive 2014/30/EU
- ISO 9001:2015 — quality management system certified by TÜV Rheinland
- R449A meets EU F-Gas Regulation; R404A available for non-EU markets
- Structural reference: CSC guidelines for corner casting integrity