We don’t deliver everywhere with refrigerated trucks—economics won’t allow it. But professional dry ice packaging extends frozen delivery beyond our routes.
Best Practices
Best Practices
Best Practices
The Ice Pack Delusion: Why Cardboard Boxes Can’t Replace Refrigeration
Ice pack frozen delivery makes 3× more profit per delivery than professional refrigeration—but collapses in 3 years. Here’s why margins don’t matter.
Technical Articles
The “Smart Fleet” Delusion: Why Telematics Without Physics Is Just a Fancy Logbook
The practices, procedures, and temperature maintenance protocols ensuring frozen food products remain safe for human consumption throughout production, storage, transport, and retail distribution. Frozen food safety centers on maintaining products…
Technical Articles
Radiating Upward: The Thermal Load Nobody Calculated (And Why Your Floor Is The Weakest Link)
Refrigerated transport specifications obsess over solar radiation from above while completely ignoring the 70°C heat source below. South African trucks operate on pavement surfaces 20-30°C hotter than ambient air, yet floor insulation is consistently half that of roofs. The physics is simple, but the industry won’t calculate the cost.
Technical Articles
The Constant-Speed Curse: Why Variable-Speed DC Compressors Could Slash Your Duty Cycle by 40%—But Direct-Drive Mounting Is Holding Them Hostage
Your fixed-speed compressor wastes 40% of its energy on crude thermostat control. Variable-speed DC systems save R12,500/year. Here’s why you can’t buy one.
Technical Articles
The Defrost Cycle Dictatorship: How Timed Defrosts Waste R25,000 Per Vehicle Per Year
Automatic defrost control system that activates on fixed time intervals regardless of actual ice accumulation, wasting 60% of defrost energy through inappropriate scheduling.
Technical Articles
Your Truck is a 4-Ton Brick Fighting Wind at 100 km/h: The Aerodynamic Design Revolution That Could Save You R150,000 Per Vehicle Over Five Years (But Nobody’s Building It)
The heat exchanger where high-pressure, high-temperature refrigerant gas from the compressor releases heat to the atmosphere, condensing back into liquid for the next refrigeration cycle. The condenser is where heat…
Technical Articles
The Aerodynamic Cost of Larger Condensers: The Fairing Effect Nobody Calculated
The heat exchanger where high-pressure, high-temperature refrigerant gas from the compressor releases heat to the atmosphere, condensing back into liquid for the next refrigeration cycle. The condenser is where heat…
Technical Articles
The Ram Air Misnomer: Why Small Form Factor Units Waste Your Mounting Space
Small form factor condensers waste 60% of your mounting space. Ram air can’t save undersized coils at courier speeds. Use the space you paid for.
Technical Articles
R448A vs R404a: The Refrigerant Upgrade That Actually Makes Sense for Altitude (Unlike the European Solutions Nobody Asked For)
A hydrofluorocarbon (HFC) blend refrigerant that became the transport refrigeration industry standard after CFC phase-out, now facing its own obsolescence due to high global warming potential (GWP 3,922). R404A works…