Automotive Refinishing Spray Paint Booths – Semi Down Draft

Marathon’s Semi Down Draft Series spray booths are designed to be an efficient finishing solution, an excellent balance between cost, quality and functionality. This model can be ordered with a Spray & Cure Air Make Up unit (heater) or without.

Semi Down Draft

The Semi Down Draft Spray Paint Booths is an excellent “All Around” paint booth, and is also one of our most popular styles. The air enters through the intake plenum above the front doors, and travels horizontally through the booth.

The air exits the booth through the rear exhaust filter plenum, and finally out the back of the booth. This standard design is popular because it is simple to use and maintain. You can order this design with a Spray & Cure heater added as an option. This model is available in standard sizes, or Marathon can custom build one to your specifications.

  • Automotive Semi Down Draft Slide Show
  • Automotive Semi Down Draft Slide Show
  • Automotive Semi Down Draft Slide Show
  • Automotive Semi Down Draft Slide Show
  • Automotive Semi Down Draft Slide Show
  • Automotive Semi Down Draft Slide Show
  • Automotive Semi Down Draft Slide Show
  • Automotive Semi Down Draft Slide Show
  • Automotive Semi Down Draft Slide Show
  • Automotive Semi Down Draft Slide Show
  • Automotive Semi Down Draft Slide Show

AIR FLOW
Intake, heated booth: Outside air is filtered twice, once as it enters through the air make up unit located at the side of the booth, and again as it passes through the intake plenum filters (shown in green). In this example, this booth is equipped with a Spray & Cure heating unit.
Semi Down Draft Airflow Diagram
Intake, non heated booth:
The air is filtered twice, once through plenum side filters, and again through the ceiling filters before entering the work area.
Semi Down Draft Airflow DiagramExhaust: The filtered air travels horizontally across the length of the booth (crossflow). Finally, the air is filtered of overspray and particulates by the exhaust filters before exiting the booth. Marathon uses standard size intake and exhaust filter media, readily available from most paint and refinishing suppliers.