Michigan Booth Make-Up Air With Cure Mode Recirculation
In many paint booths, the air make up unit does double duty. During spraying it delivers fresh, tempered air; during cure it recirculates most of the air and raises booth temperature. Michigan collision shops, suppliers and fleet operations around Detroit rely on booth make-up units to switch cleanly between those modes. Double D installs booth make-up air units and their controls.
Discuss your installationSpray mode
In spray mode the unit pulls in outside air, filters it, heats it to a comfortable spray temperature and delivers it to the booth plenum. Exhaust removes the same air with overspray.
Cure mode
In cure mode, dampers recirculate much of the booth air back through the unit while a smaller portion is exhausted. The burner raises temperature for the cure cycle. Purge time at the end clears the booth before people enter.
- Recirculation damper position
- Burner capacity for cure temperature
- Purge before re-entry
- Temperature control during cure
Burner sizing for both modes
The burner has to temper cold outside air during spray and push booth temperature up during cure. Sizing covers both. Gas supply must handle the full burner rating.
Keeping modes safe
Interlocks keep spray equipment off during cure, verify airflow before burner ignition and prevent recirculation during spraying. Damper position switches confirm each mode.
Planning a booth or oven project in Michigan
Crews mobilize from Houston; Michigan is roughly 1,100 miles away, so equipment, panels and tooling are staged and shipped ahead of the install crew.
Manufacturing in Michigan is concentrated around Detroit, Grand Rapids, Lansing, and Flint. The sectors most likely to be specifying spray booths, blast rooms, powder systems and cure ovens there include automotive assembly and suppliers, office furniture, tool and die, and EV batteries.
Cold winters mean make-up air heaters are sized for sub-freezing intake, and booth or oven placement has to account for frost lines, snow loads on roof penetrations and winter slab work.
Frequently asked questions
Why does our booth take so long to reach cure temperature?
Burner capacity, damper position or recirculation airflow may be the cause.
Can we spray during cure?
No. Interlocks prevent spraying during the cure cycle.
How much air is recirculated during cure?
It depends on the booth design and requirements. Some fresh air is always exhausted.
Do dampers need maintenance?
Yes. Linkages, actuators and seals should be checked so modes switch correctly.
Can an older make-up unit be upgraded for cure mode?
Sometimes, with damper and control changes. Burner capacity must be checked.