Laser cutting | Sticky Smoke | Premature clogging

Sticky smoke

is what we sometimes call the by-product when cutting or engraving on resinous materials such as acrylic, wood, materials with adhesive backing, etc. They consume filters sooner rather than later 🙂

Here’s where our Pre-filter modules that can be added on our Laser Fume Extractors or ordered as a stand-alone to complement your existing laser fume extractor / air filtration system.

Designed to enhance the performance of the SPH800/SPH400 air purifiers, the PF800/PF400 passive pre-filter modules capture larger dust and particles protecting the air purifier’s HEPA and/or carbon filter.

Capture-PF400-PF800

Who needs it?

Customers that have heavy dust loadings will appreciate this pre-filter section since it will prolong the life of the primary filters inside the SPH800/SPH400 extractors, reducing the maintenance costs.

What’s inside?

The PF800/PF400 modules contain three (PF800) or two (PF400) high-capacity antimicrobial, multilayered, dust filter bags that can capture a significant amount of dust and particulate matter before it reaches the primary filters of the SPH800/SPH400 units.

How easy is it to change the filters?

Whether you have a standalone or add-on module filter bags are accessed in the same manner. Remove inlet cover, quarter turn 4 locking mechanisms and remove the section to replace bags. Designed to be clean simple and effective. Dust is contained in the bags to
minimize the mess and exposure of personnel to potentially harmful dust.

How can I use it?

The PF800/PF400 passive pre-filters can be used either as add-on modules to an SPH800/SPH400 air purifier or as standalone mobile units. The standalone modules, can be used with virtually any existing filtration system. The inlet and discharge collars can accommodate many different arrangements to suit the application. Single or dual 1”, 1.5”, 2”, 2.5”, 3” or 4” diameter collars are available as standard options. Custom diameters are
available upon request.

Dimensions: H x W x D

PF800: 30 x 16 x 25 (in) / 76 x 40 x 64 (cm)
PF400: 24 x 12 x 15 (in)  / 76 x 30 x 38 (cm)

Contact us for help with your product selection. Toll free: 1-800-626-0664 or fill out the contact form below.

Advertisements

Premature clogging of main filters – HEPA filter and the Odor Filter / Chemical Filter

Laser cutting with wood produces “sticky smoke”

The CSA600 series Fume Extractor and Air Filtration System is designed with up to 4 stages of filtration each targeted for removal of specific size particles and gases.

There are a series of filters in the system to ensure that all particulate matter/ dust is removed efficiently:
• The unit contains Merv 13 Bag filters, Deep Pleated high capacity safety filters and a MERV 17 99.97 % HEPA filter.

CSA-600 - Heavy Duty Dust & Odor Removal

The CSA is the workhorse fume extractor of the laser industry; designed to operate in a heavy duty environment. A large pre-filter bag that is easily accessed to change via a convenient side panel eliminates much of the debris that might otherwise clog the more expensive HEPA filters. A huge chemical bed of 66Lb. (30kg) provides significant odor and VOC protection for much longer than the light duty units again providing a solution that can withstand a heavy workload. Chemical compounds can be customized based on specific applications With large collection bag, HEPA Filter & Deepbed Odor filters LaserBlue Gel seal guarantees NO BYPASS Dual hi-speed turbine for high suction, pressure & airflow Whisper quiet operation is office friendly Universal design allows for 2.5″, 3″, 4″ inlet along with discharge

• The HEPA filter is the last particulate filter in the sequence and it is designed to remove 99.97% of all particulate matter that is 0.3 microns and larger.
• This is the same type of filter that is used in hospital operating rooms. Please note as the filters begin to get dirty they also become more efficient making the system more efficient as time goes on. This occurs as it gets more and more difficult for the dust to pass through the filter due to the passages becoming smaller as they become filled with debris.
The gas phase filter is quite large and 15” deep in direction of airflow. We have 26 different types of chemical media that can be incorporated into the chemical filter to address and deal with specific contaminants if required.
• Depending on the type of media the modules could weigh as much as 70 lbs.
• Our standard and most typical module contains a virgin bituminous coal extruded 3-4 mm carbon pellet.
• This carbon is ideal at removing many VOC’s and has a holding capacity as high as 25 % by weight. Initially the removal efficiency will be 100% for most VOC’s. Over time the mass transfer zone will travel through the chemical filter as it gets consumed.
• The chemical filter is seated inside a gel seal material to guarantee zero by-pass of the chemical filter. This is the same material that is used in Pharmaceutical and Hospital environment clean rooms. All gases therefore must pass through the chemical filter
Unlike other systems that have a sprinkling of carbon our gas phase chemical filter is quite large and requires the use of high pressure blowers to overcome the resistance created by the deep bed chemical filter. Our blowers are capable of generating 90” water column of pressure. With this type of blower as the filters begin to get dirty and plugged we can still effectively overcome this increase in pressure allowing us to continue to evacuate the laser chamber. The system is equipped to advise you when the filters need to be changed.

Contact us for help with your Laser Cutting, Engraving Fume Extraction System needs:

Call us toll free in North America 1-800-626-0664 or fill out the contact form below.

Thanks and have a great day!!

Laser Cutting | Safety concerns when cutting MDF | Laser Fumes Smoke Extractor

Safety concerns when cutting MDF

When MDF is cut, a large quantity of dust particles are released into the air. It is important that a respirator is worn and that the material is cut in a controlled and ventilated environment. It is a good practice to seal the exposed edges to limit the emissions from the binders contained in this material.

Formaldehyde resins are commonly used to bind together the fibres in MDF, and testing has consistently revealed that MDF products emit free formaldehyde and other volatile organic compounds that pose health risks at concentrations considered unsafe, for at least several months after manufacture.[7][8][9]

[ More of the above article – https://en.wikipedia.org/wiki/Medium-density_fibreboard ]

Be forewarned – cutting MDF and similar wood products consume particulate filters quickly

Unfortunately certain woods such as MDF (containing glues, adhesives , resin) will consume filters quickly.

If you work with these materials lots we suggest getting the PF400 – http://www.airpurifiers-r-us.com/pf400-laser-fume-extractor-prefilter-section.html – the pre-filter bag section is incorporated into the CSA600 series.

PF400S Pre-Filter Section

  • Multiple high density layered antimicrobial filter bags x 2
  • Easy to change
  • Large holding capacity
  • Self contained pre-filter section can be combined with any existing system that requires additional particulate filtration
  • Can also snap onto existing SPH400 system

Resins in wood

The resin could be in the wood itself or if many layers are bonded together the bonding adhesives / glues could be the culprit. Essentially the laser vaporizes the adhesive or resinous material which then condenses / sticks and clogs the filters rapidly.

Sometimes it is the natural resins within a particular wood.

When this type of material is lasered the fumes can sometimes block the pores of the filters. This will not be unique to Quatro’s filters but to any unit that contains particulate / HEPA filters.

Installing a pre-filter section may prolong the life of the HEPA filters. It all depends on what type of debris is being generated in the particular application.

For those unfortunate to have an application where HEPA filters are being blinded quickly we have two items we can offer:
1) The PF400A pre-filter section $653.00
2) Part # AG189 (box of 6 HEPA’s for the price of 3) ……… $351.00 USD
(Prices subject to change without prior notice)

Call us for help with your Laser Fume Extractor / Air Filtration System.

Contact Us
Toll Free: 1-888-395-0330 or 1-800-626-0664 (North America- Continental USA and Canada)
Skype: lito.espinosa
Outside of North America: 1 (514) 421-0658

Fill out the Contact Form: