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Laser cutting or engraving of certain plastics, such as acrylic, or laminated wood represents one of the biggest challenges for industrial fume extraction units. The fumes and particles created by the laser process are of a sticky nature and quickly clog up the main filters of standard filter units. This causes a loss of suction and results in a HEPA filter replacement.
adapt laser systems is now offering a solution for this troublesome issue: an automated pre-coat powder dispenser (PCD). The system uses a CM 500 filter unit with automated pneumatic filter cleaning in combination with the pre-coat powder dispenser. The pre-coat powder is made from a special material that sticky particles can not adhere to. Once the pneumatic cleaning system cleans the HEPA filter, the pre-coat dispenser automatically injects powder into the vaccum air-stream which will impregnate the filter surface area. |
 CM 500 with PCD system |
 Automated pre-coat powder dispenser |
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Sticky particles can not adhere to the surface and will be removed from the filter with the next cleaning cycle. The lifetime of the HEPA filters can be extended significantly. All functions of the PCD unit, such as cycle time, are being controlled by the CM 500 filter unit. |
 Pneumatic cleaning system for HEPA filter |
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