The cooling tunnel will design by your requirements and size of your factory. The tunnel length is 5.5 M width is 0.4M (two lines up to 11M long,1M wide)with one set air cooling chillers The chiller adapt screw compressor. The air in chiller is sealed, internal recycle.so the temp will keep low enough. Temp Air outlet is -3^c(three degress below zero), Re-absorb air is about 10^c.at the end of tunnel there will be a buffer area which will customized.we can make assure it can satisfy your cooling requires.