Tunnel Length and Footprint Estimator

This is the second half of the PU-to-Length Chain. Feed in the minutes your product needs in each thermal section, choose how much residence time one zone gives you, and read back zone count, tunnel length and the floor area the line will occupy with its working aisles.

Residence time per section

Heating, minutes

Holding, minutes

Cooling, minutes

Residence time one zone gives, minutes

Build and building dimensions

Length of one zone, m

Tunnel width, m

Working aisle each side, m

Container family

Estimated line

Set your figures and press the button.

Zones are whole units, so every section rounds up: a holding requirement of 45 minutes at 6 minutes a zone buys eight holding zones, not seven and a half. Heating and cooling zone counts come from the ramp your container will take, which is why the glass answer is longer than the can answer for the same dose. The floor area is the tunnel envelope plus a working aisle on both sides; infeed and outfeed accumulation are extra and are sized against the machines either side.

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