Zephyr Downdraft Exhaust Table
"Dry" cutting without smoke
Each damper is opened by an air cylinder. The air cylinder is controlled by a mechanically-operated air valve which is actuated by a cam mounted on the machine. When a damper is opened, the cutting smoke in the zone is drawn into the duct and moves to the filter system. The cam and valves are located such that the cutting zone directly beneath the torch and the zone adjacent to the direction the torch is moving, opens.
Cutting smoke and room air immediately above the table are drawn through the open damper and down the length of the center duct(s) into a dust collector made by Torit/Day Division of Donaldson Company. The collector uses cartridge-type replaceable flame retardant filter elements and has an integrally-mounted fan with motor and exhaust silencer. The collector can be installed indoors or outdoors. The Torit filter elements are automatically cleaned on a demand basis by reverse pulses of compressed air. The cleaning system is controlled automatically by monitoring the differential pressure drop across the filters.
Slag pans located adjacent to the central duct(s) collect small cutouts and slag particles too heavy to be drawn away by the fan. For cleanout or service, the upper table modules are lifted off by crane. This exposes the slag pans, which are also modular and handled by the crane for emptying.
Screens can be installed (by end user) immediately below the slats to prevent small parts from falling through into the pans.
End user supplied transition ducting (called connection ductwork) connects the table center duct assembly(ies) to the dust collector.
You can choose this capability out of three styles of Zephyr Table Packages to meet your budget.
Key features
- Easy installation and maintenance via modular construction
- Efficient zone design for minimum energy use
- Effective capture of debris with cartridge type exhaust filter
- Proven through field use in hundreds of applications
