Humidity Tech > Automotive Manufacturing Humidification
Automobile Manufacturing

With our technologically advanced humidifiers for automotive manufacturing, businesses can efficiently resolve many car manufacturing humidity issues areas such as:

Paint Spray Booth

The optimum humidity for the transfer of paint from the spray gun to car bodywork is 72%rH. This prevents any evaporation of the water-based paint and allows the paint to reach the bodywork as the manufacturer intended. By humidifying correctly, paint costs are also reduced by avoiding evaporation.

A major automobile manufacturer has increased the number of cars passed first-time from the paint spray booths, without any sanding required, by 8% just by improving their humidity control.

As paint spray booths are fed air from a central air conditioning system, the type of humidifier used is an in-duct unit. Historically, this has been a spray washer system, but a more modern solution is an evaporative humidifier – as the running costs are much lower and it provides total hygienic humidification.

Sand Decks

The optimum humidity to eliminate static in sand decks is 55%rH. At this level, the moisture content of the air changes the electrical charge of the dust so that it is the same as the surface of the car. This results in the dust running off the bodywork of the car instead of being attracted to it. This greatly decreases the sanding time and improves the quality of the finish.

By using a direct-air spray humidifier, up to 4° C of evaporative cooling can be achieved around the sand decks. This is a beneficial side-effect as these areas can reach up to 40° C under the hot inspection lights and with painted surfaces that have recently been through an oven.

Engine Testing

To design cars that are suitable for global use, in a range of humidities and temperatures, the engine must be able to operate in such conditions. Humidifiers that can recreate any such conditions are an essential element of the air conditioning plant feeding these areas.

As close control of humidity is required, the most popular form of humidifier for this application is a steam generating system.

Formula One engines are precisely tuned to the humidity of the country they will be racing in using very close control humidifiers. Typically, these will be steam systems run on reverse osmosis (RO) water.

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