Paint booths: How to reduce energy consumption while maintaning optimum quality?

The application and drying of paint are two decisive steps in the paint booth of your car bodywork.

How can you reduce the energy consumption of this booth while ensuring optimal quality for your customers? Controlling the temperatures during the application and drying phases by using high-precision electronic control is one solution.

Paint booths: How to reduce energy consumption while maintaning optimum quality?

The use of the paint booth in bodywork

The activity of a car bodywork shop consists of repairing and then painting the bodywork of damaged vehicles.

The paint booth is a ventilated, illuminated and heated enclosure for spraying layers of liquid paint and varnish. Its use meets safety standards.

  • Its ventilation system protects against fire, explosion and even poisoning.
  • It ensures the quality and speed of paintwork.

Heating and temperature control are major components of the booth that ensure that the paint hardens and dries quickly.

Paint application in paint booth

The crucial stages of paint application and drying in the paint booth

The paint is applied by spraying in spray booths (spraying). This stage is carried out at a temperature generally between 20°C and 25°C with a controlled air speed in the booth.

For drying, various techniques are used, including the most common one, hot air, which consists of raising the temperature of the booth to 60°C once the application is complete in order to obtain satisfactory results.

These two operations are essential for the paint to harden.

If these conditions are not met, the paint may flake more easily.
Cooling is the phase that ends the painting session. Temperature control is very important for the quality of the work.

Drying in paint booths

The paint booth is the most energy-intensive part of a car bodywork, accounting for about 75% of total energy consumption. The aim is to use the booth as sparingly as possible in terms of heating and duration of use.
The dimensions of a hot-air paint booth, and its energy consumption for heating, are calculated according to :

  • the company's geographical location (minimum outside temperature in winter),
  • the type of paint used (solvent or water-soluble).

The use of water-based paints in a hot-air paint booth leads to an oversizing of thermal power and energy consumption.

The temperature control Fuji Electric solution

The PXF high-precision electronic control solution

Fuji Electric's high-precision temperature control ensures temperature control during the application and drying phases for perfect paint results.

A two-degree-of-freedom PID control algorithm prevents temperature overshoot. A high-performance microprocessor ensures ultra-fast control to limit temperature variations regardless of the outside temperature and environmental conditions. The temperature is stable and controlled.

The PID PXF temperature controller reduces energy consumption for the paint booth air heating.

The 2 temperature set points allow easy change between application and drying temperature. Its large, high visibility display provides improved viewing of the set temperature in all light conditions.
Productivity is increased by improving the use of the booth.

The ergonomic and ultra-compact design allows the controller to be easily integrated into new booths or existing systems with minimal cost, space, and wiring.
Alarms in the event of over-measurement ensure protection of the booth and the painter.

Booth commissioning costs are reduced with the built-in auto-tuning feature that ensures the best accuracy is achieved under specific conditions.

Fuji Electric PXF controllers offer unrivalled uptime and reduce your maintenance and operating costs.
They can also be combined with air humidity controllers to match the humidity of the outside air with the required temperature inside the booth.

Benefits of temperature control PID

Your benefits: Insure, Guarantee and Increase
  • Ensure perfect drying temperatures for your paint
  • Guarantee customer satisfaction with unrivalled production quality
  • Increase profits by reducing energy consumption
Fuji Electric PXF temperature controller

Temperature controller - PXF series

  • Quality improvement and machine optimisation
    Highly accurate, stable, and ultra-fast 50ms self-adaptive PID control

 

  • Maximum flexibility and wide range of applications
    Universal input, hot/cold output, relay, SSR, analogue, servomotor, alarm relay

 

  • Cost-effective integration into your systems
    Multi-format, compact with a minimum footprint of 58mm depth

 

  • Ergonomic and easy to use
    Large, high visibility colour LCD display with wide reading angle and comfort keys

 

  • Quick and easy installation
    Self-tuning, customisable keys, and configuration software included

 

  • Designed to last in harsh environments
    Waterproof, robust and reliable up to 20 million cycles

Discover PID PXF temperature controllers

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Paint booths: How to reduce energy consumption while maintaning optimum quality?

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