Astra LT has designed and built a prototype of a new tanker for long-distance transport of hot or refrigerated food products. The new product offers the following distinctive features:
– the 30 m3 three-section tanker is really light, weighing 6,130 kg;
– the tanker is exceptionally well-insulated, with a 110-mm-thick layer of next-generation polyurethane foam resulting in an extremely low thermal conductivity of k=0.360W/m2K;
– the tanker is made of the new Duplex 1.4162 stainless steel, which is well-suited for the transport or storage of any liquid food product, including aggressive (corrosive) foodstuffs or food components for which austenitic AISI304L or AISI316L stainless steels are not suitable;
– Duplex steel also features very sturdy mechanical properties, which allowed the prototype to be made relatively lightweight and permitted a further reduction of the weight of the tanker.
The lower weight of the tanker allows for a larger quantity of product to be loaded. For transport of hot products, tankers currently on the market are usually equipped with an additional heating system, but this increases the weight of the vehicle and reduces the permissible load. In addition, the very principle of using less insulation and compensating for the resulting heat loss by burning additional diesel is not sustainable. Astra LT’s new tanker has a level of insulation such that, after filling the tank with 27 t of chocolate heated to +90 °C, it can be transported or simply stored for 11 days at -20 °C without any risk of the product congealing, because after 11 days the chocolate will remain at least +45 °C and will still be able to be pumped. In summer, at an outdoor temperature of +20 °C, the same amount of hot chocolate (27 t) will take 23 days to cool to +45 °C. In fact, the excellent insulation allows the tanker to be used not only as a vehicle for transporting a hot product, but also as a container for short-term storage at the customer’s premises.
The prototype has been fully completed, an expert examination has been performed and the tanker has been authorised for vehicle registration. The factory is currently preparing to manufacture the new product, is coordinating technical details with partners, and expects to start production in the near future.
