Downdraft Booth
Dry Downdraft Spray Booth
Dry Back Downdraft Paint Booth
Water Downdraft Spray Booth
Water Wash Downdraft BoothAutocoat Downdraft Booth are specially used for painting of heavy parts and large components, which are difficult to handle namely, wagons, earth moving machineries, chassis of vehicles, trailers, etc. In a DOWNDRAFT BOOTH air flows from top to bottom. And Air Draft is towards ground or to the exhaust chamber.
The Wet Downdraft Booth can be single sided or double sided extraction chamber depending on the size of the component. Painter goes around the component to paint all sides of competence. The over spray paint particles exhausted are removed through grating & then to water tank. After turbulent action the paint particles are allowed to form a paint sludge & Paint Free air is exhausted to blowers and finally to atmosphere. Water Wash Downdraft Paint Booth is popular in mass production where paint consumption is very high. Such Downdraft Paint Booth requires Extensive civil work for Paint Booth as well as for Paint sludge removal system & hence are expensive.
When Paint Consumption is low Dry Downdraft Paint Booth can be considered in a Dry Back Downdraft Booth Paint overspray are directed through metal baffles & replaceable filters as per Autocoat 4 level filtration to exhaust paint free air in the atmosphere to full fill pollution norms. Autocoat Dry Back Downdraft Spray booth with improved 4 level filtration system reduces recurring filter replacement cost to amazingly low when compared with competition.
Autocoat experience gives lot of Downdraft booths options while deciding large dry downdraft booth or water type downdraft booth. Downdraft booths are also widely popular by names Downdraft Painting Booth, Dry Downdraft Spray Booth, Dry Downdraft Paint Booths & similarly, Wet Downdraft Paint Booth, Wet Downdraft Spray Booth, Wet Downdraft Painting Booth. Autocoat engineering selection charts and engineers teach the right methods while choosing a large downdraft paint booth or small downdraft booth. When the Product is of large size and unable to handle many times for painting purpose , downdraft booth comes as a perfect solution. Autocoat has supplied a large no of downdraft booth in India , Indian made downdraft booths as well imported downdraft booths.
DOWNDRAFT SPRAY PAINTING BOOTHS are also known as. Downdraft Booth, Dry Downdraft Spray Booth, Dry Downdraft Booth & similarly, Wet Downdraft Paint Booth, Wet Downdraft Spray Booth, Wet Downdraft Painting Booth
Wet Downdraft Booth
Pit Type DOWNDRAFT BOOTHS requires excavation and additional concrete work. DOWN DRAFT SPRAY BOOTH can be connected in line with air supply units or air replacement units for better performance.
Large Downdraft Paint Booths:-
Large Downdraft Painting Boothsare designed for hand spray of the largest types of work-earth moving equipment, tractors, locomotives, buses, cranes. Depending on the nature of the work, Large Downdraft Spray Booths may be either single sided or double sided and open partly enclosed of fully enclosed. Airflow is vertical from top to bottom through an either an open roof or through an air replacement system. Depending on the work to be carried out in Large Downdraft Paint Booth and Different material handling equipment. Open type Large Dry Downdraft Paint Booth is most popular & cost effective for all industrial products. Speciality of Autocoat Downdraft Booth fulfils.Surface coating Plant Manufacturer in India & Painting Plant Manufacturer in India
FAQ
Frequently Asked Questions
What is a downdraft paint booth?
A downdraft paint booth pulls air vertically from ceiling-mounted intake filters down through the working area to floor-level exhaust grills, capturing overspray below the operator's feet. This top-to-bottom airflow direction prevents paint mist from contaminating freshly painted surfaces and produces the cleanest finish — preferred for premium automotive and aerospace painting.
Why is downdraft airflow preferred for car painting?
Downdraft airflow keeps overspray, dust, and contamination away from horizontal car body surfaces — bonnet, roof, boot — where defects are most visible. Air flows from above the painted panel down to the floor, never blowing across freshly applied coating. This significantly reduces dust nibs, runs, and orange-peel defects in OEM-quality finishes.
How does downdraft compare to side-draft?
Downdraft gives a superior finish but requires a floor pit or raised platform plus higher capital cost. Side-draft is simpler — no pit needed, lower-cost civil work, easier installation — but airflow horizontally across the work piece can carry overspray onto already-painted vertical surfaces, slightly compromising finish quality versus downdraft.
Does a downdraft booth need a pit?
Most full downdraft booths need an underground pit 600-900 mm deep to house the exhaust plenum and floor grills. For sites where pit excavation isn't possible, semi-downdraft designs use a raised internal floor or concrete ramp — Autocoat builds both pit and pit-less downdraft booths to suit factory civil constraints.
What industries use downdraft booths?
Downdraft booths are used by automotive OEMs, premium body shops, aerospace component finishers, defence vehicle paint shops, marine yacht builders, and manufacturers of high-end consumer goods like premium furniture and architectural products — anywhere class-A surface finish or zero-defect appearance is critical to product value or regulatory compliance.
Are downdraft booths energy-efficient?
Modern downdraft booths can be energy-efficient when fitted with VFD-controlled blowers, heat-recovery exchangers, LED lighting, and balanced intake-exhaust. Autocoat designs include re-circulation modes during cure cycles and night shut-off automation, reducing energy use significantly compared to older constant-speed booths. Energy data is shared at design stage.
Can downdraft booths have a bake cycle?
Yes. Most automotive downdraft booths integrate a bake cycle — the same booth converts from spray mode to bake mode by recirculating heated air at 60-80°C for 30-45 minutes after painting. Heating sources include direct gas, indirect diesel, electric, or LPG. Bake cycles dramatically reduce floor space versus separate paint and oven cabins.
How clean is the finish from a downdraft booth?
Downdraft booth finishes consistently meet OEM Class-A standards — typical results are below 5 dust nibs per panel, no orange-peel, no runs, and uniform film thickness. Combined with EU13 HEPA intake filtration, the booth environment is cleaner than a Class-100,000 cleanroom during paint application — making downdraft the gold standard for finish.
What is the cost of a downdraft paint booth?
The cost of a downdraft paint booth varies depending on size, type, and automation. Key factors include booth dimensions, pit or pit-less design, intake filtration grade, bake-cycle integration, blower power, heating fuel, lighting count, and any automation features. Contact us or send enquiry for exact cost matched to your project.
How long does downdraft booth installation take?
Downdraft booth installation typically takes 2-3 weeks once civil work and pit are ready — including mechanical erection, ducting, electrical wiring, heating-system commissioning, leak testing, lighting setup, manometer calibration, and operator training. Civil work for the pit usually runs in parallel and takes 3-4 weeks before booth installation begins.