Drying Ovens

It is very important that the sampling probes are as dry as possible. If the humidity in the cardboard probe is higher than 6-7% it can result in a steel sample of low quality. If the humidity is too high it can cause badly filled samples and if the surface finish is poor it can create problems in the chemical laboratory when the steel sample shall be analysed.

If the quality of the steel sample is too low, it can be necessary to take another sample, which will slow down the production.

The selected place for probe storage in the plant, weather factors and handling of the probes at the sampling place can affect the humidity in the cardboard. Cleaning of workshop floors with water can be another reason for high humidity in the probes. The cardboard easily picks up the humidity in the air.

Our drying oven is designed to be loaded with a complete pallet of sampling probes
The pallet is loaded by truck and the operator starts the drying sequence when the door has been closed. The heating is max for a preset time and after the initial high temperature sequence the system automatically switches to a lower temperature that will remain until the operator switches off the oven. A full pallet of sampling probes can be dried down from 9% humidity to 4% in less than 24 hours.

Drying box
When the sampling probes shall be used in production it is very common that 1 or 2 boxes are brought to the sampling area. If they are placed in a bad place, investigations have shown that the humidity in the probe can be back in high values again after 8-12 hours.

We have developed a drying box for safe storage of the sampling probes. The box has a heating system that warms up the samplers so that the cardboard don’t pick up the humidity again. It is very easy that the humidity in the cardboard probe increase again after they have been removed from the drying oven.

The drying box shall be used as a safe storage for already dried probes.