Today's export packaging and pallets must be heat treated sanitarily.
This has to occur by the guidelines of the international protection of plants meeting IPPC, and is established in the standard ISPM Nr.15. In certificated temperature treatment kilns (heat treatment kilns) the lumber is brought to a temperature of 56°C for the duration of 30 minutes. Special temperature sensors in the core of the lumber measure the temperatures.
The number of the sensors depends on the kiln size.
Temperature treatment kilns are available in sizes of 100 pallets to 2000 pallets. Small kilns are often heated electrically because they need only relatively little heating energy for approx. 2-5 hours of durable heat process. Within the short residence time in the kiln the lumber hardly dries.
Because in the market more and more often temperature-treated and dried lumber / pallets is demanded, most temperature treatment chambers are designed as full dry kilns. This extra can also be added later with low expenditure.
Temperature treatment processes are regulated automatically over computer. The curve course of the kiln temperature and the inside lumber temperatures is indicated on the computer display. The color printer delivers a perfect protocol after ending of the heat process. All temperature treatments are recorded and stored on the computer even for later evaluations.