A door manufacturer was having some issues in containing the sawdust within their CNC machine. Their operation used two rotary saw blades on a mill arm to cut two grooves in the bottom of a standard 36” (91.4cm) wide door. The grooves were used to hold a Kerf door sweep; a mechanical barrier to keep water, air, and dirt from getting into the house. After the grooving operation, dust was getting on the door and around the conveyor. It was becoming a safety issue as the saw dust would collect on the shop floor. The CNC mill did have a dust collection system, but it needed a little help to keep the material within the collection area.
I recommended the model 110236DX Super Air Knife Deluxe Kit. This model included a 36” (914 mm) Super Air Knife, a filter, a regulator, a shim set, a Universal Mounting System, and an Electronic Flow Control. The filter would capture any contamination from the compressed air line to keep the door surface clean. The regulator and shim set would be used to control the amount of force required to remove the debris and keep the dust from migrating. The Universal Mounting System securely attached to the Super Air Knife to give flexibility in mounting. It uses articulated arms to maneuver the Super Air Knife to the best position for blowing. The Electronic Flow Control, or EFC, is an optimization product that uses a photoelectric eye to turn on and off the compressed air with a timing circuit. When the mill arm passes by the photoelectric eye, the timing circuit would start blowing; and it would turn off after the door has been processed and left the milling area. The EFC is great tool to save on compressed air.
The Super Air Knife was placed underneath the aluminum extrusion guard in front of the door (reference photo above). It was placed to increase contact time and to blow back toward the dust collection system. The force of the air would clear the surface of the door in a non-contact way. As a result, the wood chips and debris stayed inside the CNC machine and removed the slip hazards in other areas of the plant. As an additional note, since the dust collection system was now optimized with the Super Air Knife, the housekeeping within the plant was not needed which saved them time and money.
If you want to have a safer environment for your workers, EXAIR has a line of products that can help. Whether it is for noise, dead-end pressure, or removing slip hazards as above; EXAIR has engineered solutions that can help. You can contact an Application Engineer at EXAIR for assistance.