Dust Extraction Systems

Product Details:

Extraction Arms - Extraction arms for low vacuum systems are constructed of a hood and hose or hose and tube combination. The arm’s diameter is typically 8 inches; lengths are usually 6, 10 or 13 feet (2, 3 or 4 meters) with boom extensions available. When correctly positioned, the capture capability of adjustable fume extraction arms is suitable for all position welding and cutting. A lamp with arc sensor kit is available for most arms. 2. Ducting - Enclosed pathway for moving welding fume from capture device to filtration unit. 3. Filter Unit - Lincoln Electric filter units have self-cleaning capability and filter media designed for welding fume. Filters with a Minimum Efficiency Reporting Value (MERV) rating of 16 are available. (Filter efficiency is dependent on process and particulate type and size). A collection bin located under the filter unit provides a convenient means to handle collected particulate. (Particulate should be disposed of according to Federal, State and local regulations). Some filter units may include a pre-separator to protect filter cartridges from mechanical damage due to larger particles. 4. Fan Motor - When reviewing fan specifications, Lincoln Electric looks closely at: Correctly sizing the fan motor will minimize operating energy costs while providing the correct amount of CFM to meet the system and customer needs. 5. Controls - Two control options are available on low vacuum central systems – manual or automatic. Either control system can be used with or without filtration. a. Manual On/Off Control - Manual control results in the fan running at full speed and 100% capacity regardless of demand when the system is turned on. Manual control has the least expensive installation costs, but high energy usage when compared to automatic control. b. Automatic Control - A central system with automatic control uses a variable frequency (or inverter) drive to adjust the fan speed based on extraction need. As the control system senses more welding arcs, the fan speed increases to handle the additional demand. As demand lessens, the fan slows down. Energy savings can be realized with automatic controls; however, the installation cost is higher than manual controls.