Before a single figure is written into an industrial chamber specification, four things are asked for. Four, not five — and their order is not arbitrary.
The four inputs for industrial booth design are: the largest part’s size and weight, how it is hung or conveyed, the finishing material used, and the line’s target throughput. From those four the chamber, air capacity and heat curve are derived.
What is derived from each input
| Input | What is derived from it | What happens if it is missing |
|---|---|---|
| Largest part size and weight | Internal length, width and height | A chamber that stops at a limit the part exceeds |
| Hanging or conveying method | Internal height, opening positions, hanging points | Cutting into a finished wall after manufacture |
| Finishing material | Heat curve, filter class and air capacity | A curve set for something other than what is sprayed |
| Target line throughput | Cycle time and the booth’s position in the line | A booth that becomes the bottleneck, or idle capacity |
Why all four rather than one of them
Each input constrains the others. Size alone does not give air capacity, because the material enters into it. Material alone does not give cycle time, because throughput enters into it. Sending three of the four produces an incomplete specification rather than an approximate one.
The range the answer falls inside
The result sits inside a published range: internal length 3000 to 24,000 mm, width 3000 to 20,000 mm, height 2650 to 6000 mm, and air capacity 18,000 to 190,000 m³/h per supply or extraction set.
Frequently asked questions
What if target throughput has not been decided yet?
State it as it stands: an estimated range, or a later expansion plan. An undecided figure produces a specification with a known margin; an unstated one produces a specification that may not keep up with the line.
Is the part size enough on its own?
No. Size gives approximate chamber dimensions and gives neither air capacity, heat curve nor cycle time — and those three need the weight, the handling method, the material and the throughput.
Does the specification change if the part changes later?
The specification is built on the largest part rather than the current one, which is why the largest is asked for specifically. A change of finishing material, by contrast, affects heat curve and filter class together.
When are these inputs finally fixed?
They are fixed with the internal size at the configuration stage before manufacture, because hanging points, conveyor openings and fan capacity are part of the structure rather than additions to it.
Related reading
Next step
Send the dimensions and weight of the largest part or platform to be coated, together with your site area, and the internal size and configuration come back against them. Talk to a specialist. The published range sits on the paint booths family page, and the sector configuration on the Industrial & Manufacturing sector page.