Spray-Tech/Junair Downdraft Paint Booths
Spray-Tech/Junair downdraft paint booths are used where finish consistency depends on moving overspray down and away from the vehicle or part. Installation and relocation work should be planned around the booth base, pit or raised floor, supply air, exhaust, heated air components, controls, and the workflow on both sides of the booth.
Discuss your installationBrand names identify the equipment discussed. Discuss your equipment model and installation scope with Double D; manufacturer authorization is not implied.
Base Conditions and Workpiece Clearance
A downdraft booth needs the floor system to match the booth design and the work being finished. The site review should confirm pit or basement needs, slab condition, grate locations, ramp access, vehicle clearance, and room for doors and service panels.
Balanced Supply and Exhaust
The air handling arrangement has to deliver controlled air across the booth and remove it through the floor path. Make-up air, exhaust fans, ducts, filters, and building pressure should be reviewed together rather than as separate items.
Heat, Controls, and Utility Routes
Electrical feeds, control wiring, gas or heated air connections where present, compressed air, and lighting circuits should be coordinated before the booth is set. Clear utility routing keeps service work reachable and reduces conflicts with adjacent equipment.
Relocation Readiness
For a move, document panel sections, doors, lights, ductwork, fan assemblies, controls, and utility connection points before disassembly. The new location then needs a clean plan for penetrations, air handling, clearances, and startup checks.
Frequently asked questions
What should be ready for a Spray-Tech/Junair downdraft booth visit?
Have booth drawings, equipment photos, floor or pit details, utility information, roof or wall conditions, and the largest vehicle or part dimensions available.
Can a downdraft booth be installed without a pit?
Some layouts use raised floor or basement arrangements, but the exact approach depends on the booth design, building constraints, and workpiece access needs.
Why can building pressure affect booth operation?
The booth exhausts a large amount of air. If replacement air is not controlled, doors, dust movement, heat performance, and airflow balance can all be affected.
What is checked after a booth is connected?
Checks typically include fan rotation, airflow direction, filter fit, lights, controls, doors, heat operation where present, and visible utility connection points.
How should the booth connect to shop workflow?
The booth should support the movement from prep into spray and then to cure, detail, or reassembly without crossing dirty traffic through finished work areas.