Span associates supplies vortex tubes which can be used for compressed air to produce both cold and hot air at the same time manufactured by itw vortec, usa. A control valve located in the hot exhaust can be used to adjust the temperature drop and rise for all vortex tubes. These vortex tubes come with advantages such as uses only compressed air no freon used; maintenance free, no moving parts; exceptionally reliable compac lightweight; and cycle repeatability within +/- 1ยบ. Vortex tubes can be applicable for cool machining operations; set solders and adhesives; cool plastic injection molds; dry ink on labels and bottles; dehumidify gas samples; cool heat seal operations; cool cutter blades; and temperature cycle parts. These tubes are available in many different models.
