EXAIR Chip Trappers Make Short Work of Coolant Maintenance

“Build a better mousetrap, and the world will beat a path to your door,” words attributed to Ralph Waldo Emerson, means that even if there are established methods of doing something, an improved method will garner success.  It may or may not be true with mousetraps – there are over 4,400 U.S. patents for various designs. The tried-and-true spring loaded bar on a small wood plank seems to still be the most popular by far, however. Likely due to its simplicity, availability, and low cost.

There are also a good many machines on the market to clean & filter machine tool coolant.  Some are made to be permanent attachments to the coolant sump for continuous filtration.  Others are made for portability, and are used to pump out the sump, filter the coolant, and pump it back in.  These can be impressively comprehensive, and that’s often reflected in the knowledge required to operate them, as well as the price tag.

Like anything else, if you need all the “bells and whistles,” I’m sure those machines are worthy every penny.  If you just want clean coolant and you have a few minutes to spare every week or so, look no further than the EXAIR Chip Trapper System.  Here’s how it works:

  • Roll the Chip Trapper to your machine.
  • Pump the coolant out of your sump, stirring it with the pickup wand to get chips & debris sucked up with the coolant.
  • Pump the filtered coolant back in to your sump.
  • If you’ve got another machine tool, roll the Chip Trapper over to it, and repeat.  If not, you’re done.  Unless the Filter Bag’s full, in which case, you’ll want to empty it for the next time.

The vacuum hose (1) is attached to the barbed connection of the Chip Trapper (2). The directional flow control valve on the top of the drum (3) and knob on the pump (4) are set to the “fill” position. The air supply valve is opened to permit compressed air at 80-100 psig (5.5-6.9 BAR) to flow through the pump which pulls the liquid through the hose, then into the reusable filter bag (5). When all liquid is in the drum, the air supply is turned off. The filtered liquid can then be pumped out by setting the directional flow control valve on top of the drum and the knob on the pump to the “empty” position. Once the air supply valve is opened, the air pushes the liquid back through the hose while all solids remain in the reusable filter bag.

There’s no moving parts, and it’s compressed air operated, so there’s nothing to wear out or burn out.  If you keep on top of emptying and cleaning the Filter Bag, the Chip Trapper will operate darn near indefinitely, maintenance free.  Oh, and to explain why I started this blog with the quote I referenced, the folks at Design News Magazine thought it was so innovative, they gave it their “Golden Mousetrap” Award when we rolled them out.  Since then, we’ve incorporated three sizes for 30, 55, and 110 gallon drums.  We also developed a High Lift version that generates 180″ H2O suction lift, for when the standard Chip Trapper‘s 96″ H2O lift isn’t enough.

EXAIR Corporation has a long history of making compressed air products that help a wide variety of industries get the most out of their processes, and the Chip Trapper is one of the most visible, and successful, examples of that.  If you’d like to find out more, give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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The HEPA Filter Protector

With our Heavy Duty HEPA Vac, it is very capable of capturing particles that are very small. You do not have to worry about re-entraining the dirt that you vacuumed back into the air. The filtration efficiency of the HEPA filter is 99.97% at 0.3 micron. Because it is so efficient, we place a prefilter on the outside of the element. This helps to capture the larger particles so that they do not prematurely plug the HEPA media. In extreme conditions with large amounts of debris, we do have another option. It is the model 901373 filter protector. It is a bag that will go on the outside of the prefilter and the HEPA filter. With a large influx of contamination, the filter protector will create a matrix from the contamination to create a cake. This cake, as it builds, will start to capture smaller particles and become more efficient. It is similar to a natural dam after a big rain. The large boulders and logs collect into a section, and then the smaller rocks and branches will collect behind it.

HEPA filter after 1 week
HEPA filter after 1 week

Under normal conditions, the standard HEPA filter with prefilter will last you for a while before replacing. It is dependent on the amount of dirt that is being collected. But, in those extreme conditions, you do not want to change the HEPA filter every week. This would be too expensive. That is why EXAIR found a cost-effective option to help, the filter protector. The model 901373 filter protector can be changed in a matter of minutes and the cost is less than 2% of the HEPA filter. Just like disposable shoe covers, they are inexpensive and they protect your expensive shoes. If you require any more information on our Heavy Duty HEPA Vac or the accessories, you can contact one of our helpful Application Engineers at EXAIR.

 

Filter Protector 901373
Filter Protector 901373

 

John Ball
Application Engineer
Email: johnball@exair.com
Twitter: @EXAIR_jb

 

 

Video Blog: Chip Trapper Filter Bag Installation/Replacement

I’ve taken a few phone calls from EXAIR customers using the Chip Trapper for the first time, needing clarification about the filter bag installation.  The video below shows how simple and quick it is to install and uninstall for replacement. Replacement filter bags are available in 1, 5, 25, 50, 100 and 200 micron filtration.

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE