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DuoShield Metal Skin Reefer Box

Durable Metal Skin Reefer Boxes that Protect
Cargo and Hold Temperature.

A steel exterior you can trust. Temperature control you can depend on.

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Key Product Highlight

Application Type

Application Type

Pharma, Food, Dairy, Meat & Poultry, Beverages

Temperature & Refrigeration

Temperature & Refrigeration

–25°C to +20°C with vehicle-powered or self-powered refrigeration unit options

Payload

Payload

High tensile strength body ideal for heavy cargo loads

Vehicle Compatibility

Vehicle Compatibility

Pick-ups, LCVs, ICVs, HCVs

Delivery TAT

Delivery TAT

Fast mounting and deployment

Build Advantage

Build Advantage

Steel exterior and interior for long-life performance

What is it built for

WHAT IS IT BUILT FOR?

DuoShield Metal Skin Reefers are built for transporters who need structural strength and long-term durability without compromising cooling performance. Built using Sub Zero's DuoShield panel technology, these reefers feature metal skins on both sides - an external layer of PPGI (Pre-Painted Galvanised Iron) and an internal layer of food-safe plastisol-coated steel - with a rigid insulated core in between.

Whether carrying pharmaceuticals, frozen foods, or sensitive perishables, DuoShield Metal Skin Reefers maintain consistent temperature profiles through long hauls, loading delays, and unpredictable weather. They integrate seamlessly across mixed fleets, including reefer trucks, refrigerated containers, reefer vans, and reefer trailers.

The metal skins in the DuoShield construction act as a continuous vapour barrier, preventing moisture ingress and protecting the insulation over time. This ensures the box does not absorb any moisture and that thermal efficiency remains consistent throughout its service life.

For operators running high-duty refrigerated transport, DuoShield Metal Skin Reefers deliver dependable performance run after run—making every journey more efficient and every load more secure.

AluFlow Aluminium Flooring System

AluFlow is Sub Zero's advanced aluminium extrusion flooring system engineered for strength, hygiene, and efficient airflow inside refrigerated bodies. The floor is constructed using precision aluminium extrusions with a corrugated profile that allows air to circulate freely beneath the cargo, supporting uniform temperature distribution.

The aluminium extrusions interlock along the length of the box, creating a continuous, rigid floor structure. At the periphery, the flooring connects with the kick plates and is fully welded, forming a sealed and leak-proof floor assembly.

The kick plates themselves are fixed to the side walls, ensuring a strong mechanical connection between the floor and the box structure. This integrated construction prevents water ingress, eliminates weak joints, and significantly improves overall box rigidity.

The result is a durable, hygienic, and easy-to-clean floor system that maintains thermal performance while withstanding demanding operating conditions in refrigerated transport.

AluFlow Aluminium Flooring System
Engineering & Performance

ENGINEERING & PERFORMANCE

German-backed engineering tailored for Indian logistics

Every DuoShield Metal Skin box at Sub Zero is built around precision thermal retention and structural toughness.

0.7mm PPGI external skin for corrosion resistance and impact durability. 0.7mm plastisol-coated galvanised iron internal skin. Polyurethane insulation (>50 kg/m³) in walls and roof to protect against heat transfer. Extruded polystyrene insulation in the floor for high compressive strength and water resistance.

Sub Zero's unique AluFlow flooring solution with aluminium extrusion kick plate to prevent leaks and wear. EPDM rubber door seals to ensure tight temperature retention in harsh climates.

Fleets benefit from strong outer metal protection against dents and accidental impacts, cooling stability even under high heat, a hygienic interior that's easy to clean, and long service life with low maintenance.

Customizations Available

Configured to match your operation and cargo requirements.

Sub Zero Aluflow

Sub Zero Aluflow (Aluminium U Section HD)

Heavy-duty aluminium flooring designed for high load capacity and long-term durability.

Aluminium Chequered Flooring

Aluminium Chequered Flooring

Non-slip, corrosion-resistant flooring built to handle rough handling and frequent washdowns.

Anti-Slip GRP Flooring

Anti-Slip GRP Flooring

Lightweight, hygienic flooring with superior grip for safer loading and unloading.

Hatch Door

Hatch Door

Top access hatch for quick loading, inspection, or ventilation when required.

Slide Type Ladder

Slide Type Ladder

Retractable ladder system for safe roof access during maintenance and inspections.

Load Securing Rail

Load Securing Rail

Keeps cargo firmly in place, reducing movement and damage during transit.

Tail Lift

Tail Lift

Hydraulic lifting system that enables safe and effortless loading of heavy goods.

Flexible Partition Wall

Flexible Partition Wall

Adjustable partitioning to create multiple temperature or cargo zones as needed.

Fixed Partition Wall

Fixed Partition Wall

Permanent separation for consistent multi-zone temperature control.

Internal Shelves / Racks

Internal Shelves / Racks

Optimized storage solutions to organize cargo and maximize usable space.

Reefer Unit Guard

Reefer Unit Guard

Protective frame that safeguards the refrigeration unit from impact and damage.

A Day at Sub Zero