Downdraft tables are workstations that use built-in vacuum systems to pull down dust particles, fumes, smoke or other particulates. These are most often used in woodworking, grinding, finishing, metalworking, welding, plasma cutting, and composite or plastic fabrication. The downdraft tables have a flat work area, with a perforated surface, where particulate is captured by the vacuum system in the unit. Collected particles may run through a filter, to protect the motor, and are deposited in a hopper.
While downdraft tables (sometimes called downdraft benches) are usually suitable for working on small or medium components, larger work areas may require a different solution. For working on large industrial projects, a downdraft booth may be the right solution. Downdraft booths are enclosures (usually used for painting or coating large equipment or vehicles), that filter paint fumes and overspray from the main work area. These are sometimes known as spray booths or painting booths.
Basic Components of Downdraft Tables
Most downdraft tables have a flat, elevated work surface. This sits on top of the table. This work surface is porous, allowing a vacuum system to pull debris, particles, and fumes into the housing. Dirty air is pulled through a filtering system, usually cartridge filters. Clean air is blown back out into the facility. The filters are usually cleaned via pulse jet and particulate is collected in a hopper.
Types of Downdraft Tables
There are different types of downdraft tables for different applications. The design of the downdraft bench will be slightly altered for certain types of particulate collection. For example, some types of dust and fume collection may require anti-sparking or flame-resistant design.
Here are some common variations in downdraft table design:
- Dry downdraft table for woodworking or composite/plastic fabrication
- Grinding/Metalworking downdraft table
- Welding/plasma cutting fume extraction downdraft table
- Wet dust collection downdraft tables
- Laboratory grade downdraft collection for ultrafine particles
- Stationary or portable
Benefits of Downdraft Particle Collection
The greatest benefit of having downdraft workspaces is workplace safety. When the air quality is improved, and noxious fumes and small particulate is removed from the air, everyone in the facility benefits. Having a healthy workplace and staff is our primary concern.
Downdraft tables are also designed to be ergonomic. Some are height adjustable, so workers can be productive without sustaining repetitive motion injuries.
Another benefit is the versatility of downdraft benches as a solution. There are many different types of benches, for a wide variety of industries.
Industries and Applications That Use Downdraft Benches
- Plasma Cutting
- Composite and Plastic Fabrication
Downdraft Table Design
Your facility may require specific dust collection or downdraft fume extraction criteria. Industrial Air Filtration, Inc can help you design the ideal downdraft system to ensure maximum air quality. We can look at the particle size and production rate or your plant, and design a downdraft solution that helps you meet OSHA requirements and keeps your workplace air quality safe.
IAF Can Help You Choose the Right Downdraft Table for Your Facility
There are many different specifications for downdraft tables and finding the right fit for your application can be challenging. Our team of engineers at Industrial Air Filtration can help your team choose the right downdraft tables and dust collection equipment for your manufacturing plant or facility.
If your facility needs dust collection or fume extraction, IAF can help you make an informed decision, design a dust collection system, automate filter stocking, or install the right equipment for your workplace.