Refrigerated Truck Body Insulation · Ho Chi Minh City
Fleet of 15 reefer truck bodies insulated with 75mm closed-cell PU foam. Seamless thermal envelope eliminated thermal bridges at ribs and door seals.
Customer Type
Cold Chain Logistics Fleet
Industry
Cold Chain Logistics
Project Scale
15 truck bodies (~800 m² total)
Duration
9 days
The Challenge
Cold chain fleet noted 8-15% product loss on long-haul routes due to temperature excursions. Cause traced to thermal bridging at sandwich panel seams and ribs. Standard foam boards could not conform to curved internal geometry.
Our Solution
Applied 75mm seamless closed-cell PU foam at 42 kg/m³ using JYYJ-H600 hydraulic at 30 MPa. Interior surface prep + directional spray eliminated all thermal bridges. HFO blowing agent reduced weight penalty by 4% vs HFC formulations.
What Pioneer Delivered
Not just a machine — a matched system, a trained crew on site, and after-sales backing end to end.
- An on-site survey of each truck body to map thermal-bridge hot spots at ribs and door seals before quoting — so the spec matched the real failure points, not a generic thickness.
- A single-source system — JYYJ-H600 machine and matched closed-cell PU material tuned and warranted together, not a sprayer from one supplier fighting foam from another.
- A crew trained on confined-body interior spraying and directional passes around ribs and door frames — the skill that makes a seamless envelope is the operator, and we own it.
- Depth-gauge QA and a body-by-body schedule built around the fleet's delivery routes — trucks rotated back into cold-chain service in hours, never parking the whole operation.
- Ongoing remote support for ratio and chemical-heat tuning, plus re-order of the exact matched material — so the next body or the next truck is a phone call, not a new project.
Execution Process
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1 · Interior Survey & Prep
Each truck body is surveyed for thermal-bridge hot spots at ribs and panel seams, then the interior skin is degreased, abraded and dried to a dust-free, condensation-free substrate so the foam bonds tight to curved geometry.
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2 · Masking & Machine Setup
Door seals, hinges and rails are masked off, then the JYYJ-H600 hydraulic unit is brought to temperature with the 1:1 ratio set and chemical heat checked for the warm 35°C ambient before any foam is laid down.
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3 · Closed-Cell Foam Spray
75 mm of seamless closed-cell PU foam at 42 kg/m³ is sprayed with the JYYJ-H600 at 30 MPa, directional passes wrapping ribs and door frames so no thermal bridge survives. The HFO blowing agent trims 4% off weight versus HFC formulations.
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4 · Cure & Fleet Return
Foam is trimmed flush at door openings, thickness verified by depth gauge, and each body returns to cold-chain service within hours. The fleet was processed body-by-body so trucks rotated back into rotation without parking the whole operation.
Key Technical Highlights
Insulation Layer
75 mm closed-cell PU
Seamless 42 kg/m³ closed-cell foam conforming to curved interior geometry.
Spray Unit
JYYJ-H600 @ 30 MPa
Hydraulic plural-component rig giving controlled fill on tight body interiors.
Blowing Agent
HFO low-GWP
F-Gas-friendly HFO trims 4% body weight versus HFC formulations.
Thermal Drift
< 0.5°C/hr
Holdover measured at 35°C tropical ambient after seamless envelope.
Fleet Scale
15 truck bodies
About 800 m² total interior surface completed on a 9-day rotation.
Cold-Chain Result
12% to 2% loss
Product spoilage on long-haul routes cut by eliminating thermal bridges.
Project Gallery
On-site application and finished surfaces from this project.
Project Results
15 truck bodies
Fleet processed
9-day schedule
<0.5°C/hr
Temperature drift
at 35°C ambient
12% → 2%
Product loss reduction
cold chain integrity
~$650 material
Per-truck cost
excluding labor
Planning a similar project?
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Representative Project: Technical parameters and project outcomes reflect what Pioneer equipment and materials can deliver in similar scenarios. Customer-specific details are held under NDA; full documented case studies available on request.