The Uncomfortable Truth
How insulation, TRU sizing, compressor choice, condenser design, defrost systems, compressor lifecycle, and evaporator sizing create a connected cost equation — and why skimping in one area forces you to overspend in another.
Every operator building or specifying a refrigerated vehicle faces the same uncomfortable reality: physics doesn’t negotiate. You will pay for adequate cooling capacity. The only question is where and when.
Pay upfront for proper insulation, and you can specify a smaller TRU that consumes less fuel. Skimp on insulation to save R15,000, and you’ll need a larger TRU (R8,000 more), burn more fuel (R12,000 / year extra), and replace equipment sooner.
This guide maps the seven primary cost levers in refrigerated vehicle specification, showing how decisions in one area cascade through the entire system. We’ve learned these relationships through many thousands of kilometres of frozen food delivery across Gauteng and Western Cape, where altitude, heat, and multi-stop operations expose every engineering compromise.
The goal isn’t to spend the least money. It’s to spend money where it generates the highest return over the vehicle’s lifetime.
The Trade-Off Triangle
Three elements form the core cost equation:
- Thermal Barrier (Insulation) — How much heat enters the cargo space per hour
- Cooling Capacity (TRU) — How much heat the refrigeration system can remove per hour
- Operating Cost (Fuel + Maintenance) — The ongoing price of running the system
These exist in dynamic tension. Improve insulation, and you reduce both required TRU capacity and fuel consumption. Undersize the TRU, and you force maximum compressor runtime, increasing fuel and accelerating wear. Choose a cheap compressor, and you sacrifice efficiency that costs you every kilometre for a decade.
Think of it like a water tank with a hole. The hole is heat infiltration (insulation quality). The pump is your TRU. Poor insulation means a bigger hole, requiring a bigger pump running harder. You can’t cheat physics with marketing.
The Seven Levers
Within this triangle, seven specific decisions determine your 10-year total cost of ownership. Each lever connects to the others, creating compound effects that magnify both good and bad choices.
Lever 1: Insulation System
What it controls: The rate of heat infiltration into your cargo space, measured in watts per square metre per degree temperature difference (W/m²·K).
The trade-off: Better insulation costs more upfront but reduces every downstream cost — smaller TRU requirement, lower fuel consumption, reduced maintenance, and longer equipment life.
Key decisions:
- Wall thickness: 50mm vs 75mm vs 100mm polyurethane foam. Each 25mm addition costs approximately R3,000-5,000 but reduces heat load by 15-20%.
- Floor insulation: The most neglected surface. Vehicles parked on hot asphalt (55-65°C in summer) receive intense radiant heat from below. Standard 40mm floor insulation is inadequate; 75mm minimum for frozen operations.
- Thermal bridges: Every metal fastener, hinge bracket, and door frame penetrating the insulation creates a thermal short-circuit. Cheap builds ignore these; professional builds use thermal breaks.
- Door seals: The best-insulated box means nothing with worn or poorly-designed door seals. Multi-fin seals outperform single-blade designs.
The cascade effect:
| Insulation Quality | Heat Load | Required TRU | Annual Fuel | 10-Year Impact |
|---|---|---|---|---|
| Budget (50mm walls, 40mm floor) | 2.8 kW | 7-8 kW rated | R48,000 | Baseline |
| Standard (75mm walls, 50mm floor) | 2.1 kW | 5-6 kW rated | R38,000 | -R100,000 |
| Premium (100mm walls, 75mm floor, thermal breaks) | 1.5 kW | 4-5 kW rated | R30,000 | -R180,000 |
Note: Values based on 12m³ cargo space, Gauteng altitude, 35°C ambient, -18°C cargo target.
Bottom line: R15,000-25,000 extra on insulation saves R100,000-180,000 over vehicle lifetime. This is the highest-return investment in any refrigerated build. For detailed material comparisons and thermal calculations, see our Insulation Materials Guide.
Lever 2: TRU Sizing
What it controls: Whether your system can maintain target temperature under actual operating conditions — not just manufacturer test conditions.
The trade-off: Undersized TRUs cost less upfront but run at maximum capacity continuously, consuming more fuel and wearing out faster. Oversized TRUs cost more but cycle efficiently and last longer.
The altitude problem:
At Johannesburg’s 1,750m elevation, air density drops 18% compared to sea level. This directly reduces:
- Compressor volumetric efficiency (less refrigerant mass flow)
- Condenser heat rejection (less air mass across coils)
A TRU rated at 5kW at sea level delivers only 3.95kW at Johannesburg altitude — a 21% capacity loss. Equipment suppliers rarely mention this.
Key decisions:
- Altitude correction: Specify TRU capacity 25-30% above calculated sea-level requirement for Gauteng operations.
- Peak vs average load: Multi-stop delivery creates thermal spikes from door openings. A system sized for average load cannot recover between stops. Size for peak recovery capacity.
- Safety margin: Equipment degrades, ambient temperatures spike, routes run long. Build in 20% safety margin above corrected peak requirement.
The cascade effect:
| TRU Sizing | Purchase Cost | Compressor Runtime | Annual Fuel | Replacement Interval |
|---|---|---|---|---|
| Undersized (sea-level spec) | R45,000 | 95%+ continuous | R52,000 | 5-6 years |
| Correct (altitude-corrected) | R55,000 | 60-70% cycling | R38,000 | 8-10 years |
| Oversized (with margin) | R65,000 | 40-50% cycling | R32,000 | 10-12 years |
Bottom line: Spending R10,000-20,000 more on correctly-sized TRU saves R14,000/year in fuel and doubles equipment life. Undersizing is the most expensive “savings” in refrigerated transport.
Lever 3: Compressor Type
What it controls: How efficiently the TRU converts fuel into cooling, and how well it handles variable loads.
The trade-off: Fixed-speed compressors cost less but cycle on/off wastefully. Variable-speed compressors cost more but modulate to actual demand, saving 20-35% on fuel.
How they differ:
Fixed-speed (on/off cycling): Runs at 100% capacity until temperature reached, shuts off, waits for temperature to rise, restarts. Each restart draws high current, stresses components, and wastes fuel on the thermal mass of the compressor itself.
Variable-speed (modulating): Adjusts speed continuously to match cooling demand. At light loads, runs slowly and efficiently. At high loads (post door-opening), ramps up temporarily. No wasteful cycling.
Key decisions:
- Duty cycle match: Multi-stop operations with constant thermal disturbance benefit most from variable-speed. Long-haul with stable loads sees smaller (but still positive) benefit.
- DC vs engine-driven: Variable-speed DC compressors can run from vehicle alternator, auxiliary battery, or shore power. Engine-driven systems tie compressor operation to vehicle engine.
- Inverter quality: Cheap variable-speed systems use low-quality inverters that fail in 2-3 years. Specify industrial-grade inverters with 5+ year warranty.
The cascade effect:
| Compressor Type | Premium Cost | Fuel Savings | Maintenance | 10-Year Net |
|---|---|---|---|---|
| Fixed-speed baseline | — | — | R8,000/yr | — |
| Variable-speed DC | +R25,000 | -28% (R11,000/yr) | R5,500/yr | +R135,000 |
Bottom line: Variable-speed compressors pay back in 18-24 months and deliver R135,000+ net benefit over 10 years. The industry sells fixed-speed because it’s cheaper for manufacturers — not because it’s better for operators. For the full analysis, see The Constant Speed Curse.
Lever 4: Condenser Design
What it controls: How effectively the TRU rejects heat from the refrigeration cycle to ambient air.
The trade-off: Larger condensers cost more and require more mounting space, but improve system efficiency and provide crucial capacity margin for hot conditions.
The counterintuitive truth:
Industry assumes larger condensers increase aerodynamic drag. The opposite is often true. Small courier trucks have flat loadbox walls behind the cab creating massive drag (Cd ~1.15). A large horizontal condenser covering 70-90% of this wall acts as an integrated fairing, actually reducing total drag while providing more cooling capacity.
Key decisions:
- Size: Minimum 1.5× the condenser area typical for your TRU capacity. More is better — condensers are cheap insurance.
- Placement: Horizontal mounting behind cab (fairing effect) outperforms roof-mounting (added drag, heat soak from roof).
- Airflow: Condenser needs unobstructed airflow. Mounting tight against loadbox wall with no gap creates dead air zone that destroys performance.
- Cleaning access: Condensers clog with road grime. Designs that prevent cleaning become progressively less efficient.
The cascade effect:
| Condenser Approach | Incremental Cost | Capacity Gain | Drag Change | Annual Benefit |
|---|---|---|---|---|
| Standard (small, roof-mounted) | Baseline | — | +drag | — |
| Oversized (horizontal, behind cab) | +R8,000 | +35% | -29% drag | +R12,000/yr |
Bottom line: Proper condenser sizing and placement is one of the few modifications that improves both thermal performance and fuel economy. The R8,000 investment returns R12,000+ annually. For the full aerodynamic analysis, see The Fairing Effect Nobody Calculated.
Lever 5: Defrost System
What it controls: How the TRU removes ice buildup from evaporator coils — and how much energy it wastes doing so.
The trade-off: Timer-based defrost is simple and cheap but activates on fixed schedules regardless of actual ice accumulation. Demand-based defrost costs more but only activates when needed.
The waste problem:
Standard TRUs use timer-based defrost — cycling every 4, 6, or 8 hours regardless of conditions. In multi-stop operations with frequent door openings, evaporators may need defrost every 3 hours. In cool, dry conditions, they may not need defrost for 12+ hours.
Timer systems defrost when clean (wasting energy heating already-warm coils) and fail to defrost when iced (because the timer hasn’t triggered). Both failure modes cost money.
Key decisions:
- Sensor type: Demand-based systems use temperature differential, air pressure drop, or optical sensors to detect actual ice accumulation.
- Defrost heating: Electric resistance heaters are standard. Hot-gas defrost (using compressor discharge gas) is more efficient but more complex.
- Override capability: Even demand-based systems should allow manual override for unusual conditions.
The cascade effect:
| Defrost Type | Equipment Cost | Energy Waste | Coil Damage | 10-Year Impact |
|---|---|---|---|---|
| Timer-based (6hr interval) | Baseline | 60% unnecessary cycles | Accelerated | — |
| Demand-based (sensor) | +R12,000 | Minimal | Reduced | +R50,000 |
Bottom line: Demand-based defrost is often overlooked but delivers solid returns. The R12,000 upgrade saves R5,000/year in energy plus reduced maintenance and extended coil life.
Lever 6: Compressor Lifecycle
What it controls: The frequency and severity of compressor replacements over vehicle lifetime — the hidden cost that TRU salespeople never mention.
The uncomfortable reality:
Compressors are consumable items. They wear out. In our operational environment — Gauteng altitude, multi-stop delivery, summer heat — we budget for compressor replacement every two years. Over an eight-year period, that’s four planned replacements. Yet when we purchased our first TRU, nobody mentioned this. No salesperson, no manufacturer representative, no industry guide discussed compressor lifecycle costs as part of total cost of ownership.
This silence isn’t accidental. A R45,000 TRU sale sounds reasonable. A R45,000 TRU plus R75,000-150,000 in compressor replacements over its lifetime sounds very different.
The trade-off:
How hard you work your compressor directly determines how long it lasts and how it fails. An undersized TRU running at 95%+ continuous load burns through compressors in 12-18 months. A properly-sized system cycling at 40-50% load can stretch intervals to 3-4 years.
Worse, stressed compressors don’t just fail more often — they fail more catastrophically.
Failure modes:
Normal wear (R15,000): Compressor reaches end of life gradually. Refrigerant recovery, compressor swap, system recharge, back in service. Predictable and manageable.
Catastrophic failure (R25,000): Compressor fails suddenly under stress. Metal filings contaminate the entire refrigeration circuit — evaporator coils, condenser, expansion valve, lines. The TRU must be stripped, flushed, and rebuilt with replacement components. On engine-driven systems, catastrophic compressor failure can damage the vehicle engine itself.
The contamination death spiral:
We’ve experienced this on two vehicles: a catastrophic failure sends metal particles throughout the system. Even after rebuild, microscopic contamination residue remains. This accelerates wear on the replacement compressor, shortening its life and increasing probability of another catastrophic failure. One bad failure can trigger a cascade of problems for years.
Key decisions:
- Proactive replacement: Budget operators face a choice — replace compressors proactively every 18-24 months (expensive but controlled), or run to failure and risk catastrophic events (cheaper until it isn’t).
- Runtime reduction: Every upstream lever that reduces compressor runtime extends compressor life. Better insulation, correct TRU sizing, efficient condenser — all pay dividends in compressor longevity.
- Quality components: Cheap replacement compressors have shorter lives and higher catastrophic failure rates. False economy.
The cascade effect:
| Operating Profile | Compressor Life | 10-Year Events | Normal/Rebuild Split | 10-Year Cost |
|---|---|---|---|---|
| Budget build (95%+ runtime) | ~80,000 km (16 months) | 7-8 replacements | 5 normal + 2-3 rebuilds | R125,000-150,000 |
| Engineered build (40-50% runtime) | ~150,000 km (30 months) | 2-3 replacements | 2 normal + 1 rebuild | R55,000-70,000 |
Based on 5,000 km/month operation. Budget scenario assumes mix of proactive and reactive replacements.
Bottom line: Compressor lifecycle is where all upstream decisions compound into hard cash. The R80,000-95,000 difference between budget and engineered compressor costs over 10 years exceeds the entire upfront cost difference between the two builds. This single lever can determine whether your refrigerated vehicle operation is profitable or not.
Lever 7: Evaporator Sizing
What it controls: How effectively heat is extracted from the cargo space and transferred to the refrigeration cycle — the critical interface between your product and your cooling system.
The overlooked bottleneck:
The evaporator is where cooling actually happens inside your cargo space. An undersized evaporator creates a thermodynamic bottleneck that forces the entire system to work harder, regardless of how well-specified everything else might be.
Here’s the physics: to transfer heat from cargo space air to refrigerant, the evaporator must operate at a temperature below the target cargo temperature. The difference — called “TD” (temperature differential) — determines both capacity and efficiency. Small evaporators require larger TD to transfer the same heat load, forcing lower evaporating temperatures that cascade through the entire system.
The cascade effect of undersized evaporators:
- Lower evaporating temperature required → Higher pressure ratio across compressor → More compressor stress → Higher discharge temperatures → Accelerated oil breakdown → Shorter compressor life
- Reduced airflow capacity → Poor temperature distribution → Hot spots in cargo → Uneven product temperatures → Quality complaints
- Faster ice buildup → More frequent defrost cycles → More energy waste → More thermal cycling stress on components
- Recovery bottleneck → Cannot pull down temperature fast enough after door openings → Temperature drift across multi-stop routes
The trade-off:
Larger evaporators cost more (R3,000-6,000 premium) and consume cargo space (50-100mm additional depth). But they reduce the required TD from 8-10K to 5-6K, which:
- Raises evaporating temperature by 3-5°C
- Reduces pressure ratio by 15-20%
- Cuts compressor power consumption by 10-15%
- Extends compressor life by reducing thermal stress
- Improves temperature uniformity throughout cargo space
- Reduces defrost frequency (larger surface = slower ice accumulation rate)
Key decisions:
- Surface area: Specify evaporator coil area 30-50% larger than “standard” for your TRU rating. More surface area = lower TD = better efficiency.
- Airflow design: Many small-format evaporators place fans at 90° angles to coils, creating turbulent airflow with dead zones. Demand in-line fan placement for uniform air distribution.
- Fin spacing: Tighter fin spacing increases surface area but clogs faster with ice. For multi-stop operations with frequent door openings (high humidity infiltration), wider fin spacing (4-5mm) prevents ice bridging between fins.
- Mounting position: Evaporator placement affects air circulation. Ceiling-mounted units with proper ducting distribute cooling more evenly than wall-mounted units that create stratification.
The cascade effect:
| Evaporator Sizing | Required TD | Evap Temp | Pressure Ratio | Compressor Stress | Annual Impact |
|---|---|---|---|---|---|
| Undersized (standard) | 10K | -28°C | 12:1 | High | Baseline |
| Correct (30% larger) | 7K | -25°C | 10:1 | Moderate | -R8,000 fuel, +50% compressor life |
| Oversized (50% larger) | 5K | -23°C | 8.5:1 | Low | -R12,000 fuel, +80% compressor life |
Note: Values based on -18°C cargo target, R404A refrigerant, Gauteng altitude conditions.
The airflow design problem:
We’ve written extensively about how small form factor TRU designs ignore basic fluid dynamics. The same problem exists on the evaporator side: manufacturers place fans perpendicular to coils in rectangular chambers, creating 90-degree turns that generate turbulence, dead zones, and uneven airflow across the coil face.
The result: 30-40% of the evaporator coil receives inadequate airflow, effectively reducing your expensive evaporator to 60-70% of its potential capacity. You paid for surface area you’re not using.
Bottom line: Evaporator sizing directly impacts compressor lifecycle through the pressure ratio relationship. A R5,000 investment in a larger evaporator can save R15,000-25,000 in compressor replacements over 10 years, plus R8,000-12,000 annually in reduced fuel consumption. Yet it’s rarely discussed because suppliers sell “complete TRU systems” without explaining the internal component trade-offs.
How the Levers Connect
No lever operates in isolation. Here’s how they interact:
- Insulation → TRU Sizing: Better insulation directly reduces required cooling capacity. Premium insulation (R25,000 extra) can reduce TRU requirement by one size class (R10,000 savings), partially offsetting the cost while providing superior long-term performance.
- TRU Sizing → Compressor Type: An oversized TRU with fixed-speed compressor cycles wastefully. A correctly-sized TRU with variable-speed compressor modulates efficiently. The combination matters more than either choice alone.
- Condenser Design → TRU Capacity: An undersized condenser bottlenecks the entire system, preventing the TRU from delivering rated capacity. Oversized condenser unlocks full TRU potential, especially at altitude where heat rejection is already compromised.
- Evaporator Sizing → Compressor Lifecycle: This is the hidden connection most operators miss. An undersized evaporator forces lower evaporating temperatures, increasing pressure ratio and compressor stress. A R5,000 evaporator upgrade can save R25,000+ in compressor replacements by reducing thermal and mechanical stress on the compressor.
- Defrost System → Available Capacity: Iced evaporator coils can lose 30-50% of heat transfer capacity. Demand-based defrost maintains consistent capacity; timer-based allows degradation between cycles.
- All Levers → Compressor Lifecycle: This is where everything compounds. Every decision that reduces compressor runtime and stress — better insulation, correct sizing, efficient condenser, properly-sized evaporator, smart defrost — extends compressor life and shifts failures from catastrophic to manageable. The first six levers determine whether Lever 6 costs you R55,000 or R150,000 over a decade.
- All Levers → Fuel Consumption: Every lever affects how hard the compressor works. Improvements compound: better insulation × efficient compressor × adequate condenser × properly-sized evaporator × smart defrost = dramatically lower fuel consumption than any single improvement alone.
Two Build Scenarios: Budget vs Engineered
To illustrate the connected cost equation, consider two approaches to the same 12m³ frozen delivery vehicle operating in Gauteng:
Scenario A: “Budget Build”
Minimise upfront cost at every decision point:
| Component | Choice | Cost |
|---|---|---|
| Insulation | 50mm walls, 40mm floor, no thermal breaks | R45,000 |
| TRU | 5kW rated (sea-level spec), fixed-speed | R45,000 |
| Condenser | Standard, roof-mounted | Included |
| Defrost | Timer-based, 6hr interval | Included |
| Total Build Cost | R90,000 |
Annual Operating Costs:
- Fuel (refrigeration): R52,000
- Maintenance: R12,000
- Product loss (temperature excursions): R8,000
- Annual Total: R72,000
Compressor Lifecycle Costs (10 years):
- High-stress operation: ~80,000 km compressor life
- At 5,000 km/month: replacement every 16 months
- 7-8 replacement events over 10 years
- Mix of proactive and reactive: 5 normal (R75,000) + 2-3 rebuilds (R62,500)
- Compressor Total: R137,500
10-Year Total Cost of Ownership: R90,000 + (R72,000 × 10) + R137,500 = R947,500
Scenario B: “Engineered Build”
Invest where physics rewards investment:
| Component | Choice | Cost |
|---|---|---|
| Insulation | 75mm walls, 75mm floor, thermal breaks, multi-fin seals | R70,000 |
| TRU | 6kW rated (altitude-corrected), variable-speed DC | R80,000 |
| Condenser | Oversized horizontal, behind cab | +R8,000 |
| Defrost | Demand-based with sensors | +R12,000 |
| Total Build Cost | R170,000 |
Annual Operating Costs:
- Fuel (refrigeration): R28,000
- Maintenance: R6,000
- Product loss (temperature excursions): R1,000
- Annual Total: R35,000
Compressor Lifecycle Costs (10 years):
- Reduced-stress operation: ~150,000 km compressor life
- At 5,000 km/month: replacement every 30 months
- 2-3 replacement events over 10 years
- Mostly normal wear: 2 normal (R30,000) + 1 rebuild (R25,000)
- Compressor Total: R55,000
10-Year Total Cost of Ownership: R170,000 + (R35,000 × 10) + R55,000 = R575,000
The Comparison
| Budget Build | Engineered Build | Difference | |
|---|---|---|---|
| Upfront Cost | R90,000 | R170,000 | +R80,000 |
| 10-Year Operating | R720,000 | R350,000 | -R370,000 |
| Compressor Lifecycle | R137,500 | R55,000 | -R82,500 |
| 10-Year TCO | R947,500 | R575,000 | -R372,500 |
The “expensive” engineered build costs R372,500 less over 10 years. The budget build’s R80,000 upfront savings generates R372,500 in additional costs.
Put differently: every rand “saved” on the budget build costs R4.66 over the vehicle’s lifetime.
Note what compressor lifecycle costs reveal: the R82,500 difference in compressor replacements alone exceeds the R80,000 upfront cost difference between the two builds. Even if operating costs were identical, the budget build would still cost more over time purely from accelerated compressor wear.
Decision Framework: Where Should You Invest?
If budget is limited, prioritise in this order:
- Insulation (Highest ROI): Returns R6-7 for every R1 invested over 10 years. Never compromise here. Every watt of heat infiltration you prevent reduces demand on every downstream component.
- TRU Sizing (Safety Critical): Undersized TRU causes product loss, accelerated wear, and catastrophic compressor failures. Altitude correction is non-negotiable for Gauteng.
- Compressor Type (Strong ROI): Variable-speed delivers R5+ return per R1 invested. Critical for multi-stop operations where load varies constantly.
- Evaporator Sizing (Compressor Protection): Often bundled invisibly into “TRU packages,” but worth specifying separately. Larger evaporator = lower pressure ratio = longer compressor life. R5,000 investment protects R25,000+ in compressor replacements.
- Condenser Design (Dual Benefit): Improves both thermal and aerodynamic performance. Small cost, significant return, and reduces compressor stress.
- Defrost System (Solid ROI): Often overlooked, but returns R4+ per R1 invested over equipment life.
- Compressor Lifecycle (Budget Accordingly): Not a lever you “invest” in upfront, but one you must budget for honestly. Plan for replacement every 2-3 years (engineered) or 16-18 months (budget). The difference in lifecycle costs can exceed the upfront build cost difference.
Conclusion: Pay Physics, Not Mechanics
The refrigerated transport industry perpetuates the myth that upfront savings matter most. Bodybuilders sell cheap insulation because customers don’t feel the fuel penalty. Equipment suppliers sell undersized TRUs because the temperature excursion happens after the sale. And nobody — not a single TRU salesperson we’ve encountered — mentions that compressors are consumables requiring R55,000-150,000 in replacements over a vehicle’s lifetime, or explains how evaporator sizing affects that compressor’s stress and lifespan.
Nobody profits from telling you the truth except the operator who pays attention.
These seven levers — insulation, TRU sizing, compressor type, condenser design, defrost system, compressor lifecycle, and evaporator sizing — form a connected cost equation. Understanding their relationships transforms vehicle specification from guesswork to engineering.
You will pay for adequate refrigeration. The choice is whether you pay R170,000 upfront and R575,000 total, or R90,000 upfront and R947,500 total.
That R80,000 “saved” upfront costs you R372,500 over the vehicle’s lifetime.
Related Articles:
Insulation & Thermal Load:
- The Insulation Materials Guide: Why Your Refrigerated Vehicle Can’t Maintain -15°C
- Radiating Upward: The Thermal Load Nobody Calculated (Floor Insulation)
TRU Components & Design:
- The Aerodynamic Cost of Larger Condensers: The Fairing Effect Nobody Calculated
- The Ram Air Misnomer: Why Small Form Factor Units Waste Your Mounting Space
- The Constant Speed Curse: Why Variable Speed DC Compressors Could Slash Your Duty Cycle
- The Defrost Cycle Dictatorship: How Timed Defrosts Waste R25,000 Per Vehicle Per Year
Vehicle Design & Aerodynamics:
Refrigerants & Altitude:
The Frozen Food Courier operates specialized temperature-controlled courier services in Gauteng and the Western Cape. We partner with frozen food businesses preparing for the future of cold chain logistics. If you are not thinking about your total cost of ownership when ordering your next truck, you should. Physics doesn’t negotiate. But it does reward those who pay attention.
