When To Use The High Lift Reversible Drum Vac vs. The Reversible Drum Vac

One of my favorite TV shows growing up was Home Improvement with Tim Allen. One of the most memorable parts of the show was when Tim’s character would always state that when doing a job you need … MORE POWER!!!

In real life and within a production environment this is not always true. More often than not more power equals waste and inefficient use of the resources at hand. I know, I sound a lot like Tim Allen’s counterpart in the show, Al Borland. Well, the truth is, Al was usually right.  Here at EXAIR, we offer two different types of Reversible Drum Vac, the standard unit and the High Lift RDV.

The Reversible Drum Vac System converts a drum and dolly into a mobile pumping system.

The standard RDV will pull up to 96″ of water column when in suction mode. This is ideal for water-soluble coolants or other water-based rinses. The unit is paired with a 10′ vacuum/discharge hose to ensure optimal performance. The RDV will fill a 55-gallon drum with water in 90 seconds or less when operated at 80 psig inlet pressure. It will then empty the same drum even faster by discharging liquid at up to 166″ of water column displacement. To do both of these operations, fill or empty the drum the RDV will utilize 19 SCFM of compressed air. This is easily supplied within most industrial applications where that amount of compressed air usage can be overlooked.

EXAIR’s High Lift RDV makes cleaning out pits up to 15′ deep easy and fast.

If Binford manufactured a compressed air liquid vacuum, it would be the High Lift Reversible Drum Vac. This is the, “More Power” version of the RDV and can pull up to 180″ of water column when in vacuum mode. This can pull water-soluble coolants up to 15 feet below grade for those large machining centers that sit over the top of a coolant pit or those large footprint machines where a 20′ hose is needed to reach into and around the parts of the machine to where the coolant or liquid is housed. Another application would be for oil-based coolants or other petroleum-based oils/higher viscosity fluids. This will still discharge liquids at 166″ of water column when in positive displacement. The unit will outperform its predecessor and that comes with higher utilization of compressed air. While operating at 80 psig inlet pressure the unit will consume 43 SCFM of compressed air. This volume of air is still easily located within most industrial environments and is still less than the amount demanded by competitive units that do not offer the reversible feature of the High Lift Reversible Drum Vacs.

When it boils down to it, the High Lift Reversible Drum Vac will perform every task of the standard Reversible Drum Vac and will perform the vacuum portion of those tasks all faster due to the higher level of vacuum. When this higher level of vacuum isn’t needed, when the sump is at ground level and the coolant or liquid is around the viscosity of 50 weight motor oil or thinner then the standard RDV will work ideal for the application and would be the most efficient method to get the job done. When the liquid is higher viscosity or below ground level trying to pull it up out of a pit then the High Lift Reversible Drum Vac is the ideal tool to get the job done. Again, Al Borland had it right, more power is not always needed, sometimes it is better to keep it efficient.

If you would like to discuss your liquid vacuum application or any point of use compressed air application, please contact us. (Heck, I’ll even talk about Home Improvement if you are a fan too.)

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF

 

Best of Home Improvement so 1 eo01 More Power – @shary h – https://www.youtube.com/watch?v=ts9UONUMlCg

The EXAIR Chip Trapper™ System Extends Machine Coolant Life

Have you realized that you spend too much time cleaning out your CNC machine?  Do you find that It is messy and backbreaking work?  Do you spend too much money replacing the coolant in your system?  If you answer yes to any of these, EXAIR has a product for you; the Chip Trapper System.

EXAIR created this product to reduce the down time and extend the life of your coolant.  This device will save you money and time with productivity, coolant, and repairs.  In this blog, I will go over some of the features and benefits with the Chip Trapper Systems.

EXAIR offers two types, the Chip Trapper and the High Lift Chip Trapper.  They are designed to move fluid into the drum to be filtered, and to allow the clean fluid to be placed back into the sump.  The Chip Trapper works great for quick coolant cleaning at the floor level.  The High Lift Chip Trapper is ideal for cleaning viscous fluids as well as for reservoirs below the floor level.

Both types use a pneumatic two-way pump to move the fluid.  They come in three different drum sizes, 30 Gallon (114L), 55 Gallon (208L), and 110 Gallon (418L). So, you can clean large sump tanks with only one cycle through the cleaning system.  They come standard with a 5-micron bag filter that can hold over 5 gallons of material.

EXAIR can also offer filter bags in 5 other micron ranges from 1 micron up to 200 micron.  And if you are not sure on the other filtration ranges, EXAIR offers a filter sample pack, model 901060-SP, that includes one of each type.

Chip Trapper Cut Away

The Chip Trapper System includes the drum, the two-way pneumatic pump, a drum dolly, a directional flow valve, 10 feet (3m) of vacuum hose, 20 feet (6m) of compressed air hose, a chip wand, a shut off valve, and two additional filter bags.  All you need to do is to attach the Chip Trapper System to a filtered compressed air source.

The High Lift Chip Trapper offers a more powerful pneumatic pump which can fill a 55 gallon (208L) drum in 85 second from 15 feet (4.5m) below.  And, instead of the 10 feet (3m) vacuum hose, it will come with a  20 feet (6m) vacuum hose.

The unique features with the Chip trappers are the abilities to clean the CNC sump very quickly and with less mess.  Also, by using compressed air to pump the coolant in and out of the drum, it will aerate the coolant.  This will reduce bacteria growth and extend the life of the coolant. Thus, saving you money with those more expensive coolants.

Another benefit is that the pneumatic pump does not have any moving parts to wear out.  So, it will last you a long time without worrying about motor failures or loud noises.

You can watch the video of the operation here:

A list of some benefits that you will see if you purchase the Chip Trapper System is as follows:

  • The number of complete coolant change-outs are reduced.
  • The speed to get the CNC machines back operational to make parts.
  • Reduce the number of barrels of coolant concentrate per year.
  • Bacterial growth dramatically reduced as the Chip Trapper aerates the coolant.
  • Filter bags will remove the chip fines and some tramp oils keeping the coolant fresh.
  • Quiet and long lasting
  • A complete system that is easy to use.

As an added note, some CNC machines come with a spindle coolant feature.  This new technology helps in the need to increase speeds and feed rates.  The coolant is pumped to the top of the machine and fed directly through the spindle.  This type of spindle uses a rotary union which allows the coolant to the spindle as it spins at a high rate of speed.  The rotary unions are very expensive and costly to replace.

These spindles are very susceptible to dirty coolant.  If a seal within the rotary union begins to leak inside the machine, you will not be able to diagnose the problem until they have a machine failure.  The Chip Trapper with help eliminate this chance and keep your machine from an extreme expensive breakdown.

When your machine is not operating, your productivity is lost.  The EXAIR Chip Trapper Systems can be that product for you to get you back up and running is a short period of time, extend your coolant life, and keep the area clean and safe.  A win-win proposition in saving money and time.

For U.S. and Canadian customers, EXAIR offers a 30-day unconditional guarantee to try.  And, for a limited time.  an end-user will get a free EXAIR Vac-u-Gun, a $112.00 value, with any purchase of a Chip Trapper or High Lift Chip Trapper.

If you want to learn more about the EXAIR Industrial Housekeeping Products, you can contact an Application Engineer.  We will be happy to help you.

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

 

EXAIR Reversible Drum Vac Fills A 55 Gallon Drum in 90 Seconds Flat, And Empties It Just As Fast

There are a few ways to get the liquid out of a drum:

  • You can use a pump.  Some pumps are even made to mount straight onto the lid of the drum.
  • You can siphon the liquid out, if you can get the drum higher than where you want to put the liquid.  And if you have the time.
  • You can turn the drum over.  I used to do field service in chemical plants…some of them had drum handlers on fork trucks that could pick up and tilt the drum to pour the liquid out.  Some of them pushed the drum over and simply let the liquid spill into a pit or below-grade sump.

But pumps break down.  Siphoning is finicky and slow.  I’m loath to knock the skills of the fork truck operator that can pour out a drum like a sommelier pours a fine wine.  And I’ll never forget the first time I saw an operator half-roll/half-dance a drum to the edge of that pit and let the liquid dump as he dropped it precisely where he wanted it…however, even in the context of the inner recesses of a chemical plant, it was simple, but inelegant.

EXAIR has an engineered solution that preserves the simplicity, though: the Reversible Drum Vac.  Thread the standpipe into the bung connection and the RDV itself into the vent, and that drum is now a two-way pumping system, able to be emptied via a 10 foot long Vacuum Hose in as little as a minute and a half.  Turn the knob on the RDV to switch modes, and you can fill that same drum just as fast.

With a simple turn of the knob, the Reversible Drum Vac can fill or empty a 55 gallon drum in 90 seconds!

 

 

 

 

 

 

The EXAIR Reversible Drum Vac Systems come with a variety of configurations and options:

  • Made to fit an existing 30, 55, or 110 closed top steel drum in good condition.
  • Mini Reversible Drum Vac System comes with a 5 gallon drum.
  • Deluxe Systems add a Drum Dolly and a set of tools.
  • Premium Systems add a drum (30, 55, or 110 gallon,) an upgrade to Heavy Duty Aluminum Tools, and a 20ft compressed air supply hose with shutoff valve and pressure gauge.
  • High Lift Reversible Drum Vacs generate a suction head of 180″H2O for maximum lift.  They’re also specified for higher viscosity liquids.

Below is a great video that showcases just how easy it is to from installing the Reversible Drum Vac to using the Reversible Drum Vac and just how fast the RDV operates.

If you’re looking for a fluid handling solution for liquids in drums, give me a call and we’ll talk about which Reversible Drum Vac System is right for you.

Russ Bowman
Application Engineer
EXAIR Corporation
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What’s Wrong With My Reversible Drum Vac? Most Likely – Nothing.

If you need to clean up spills, pump out a sump, or basically just move liquid from one place to another, the EXAIR Reversible Drum Vac is what you’re looking for.  The Model 6196 Reversible Drum Vac System is all you need to turn a closed top steel drum into a powerful two-way pumping system. They’re reliable (no moving parts), durable (stainless steel construction), safe (no electricity), they install quickly, they’re compact, and portable. They’re also very low maintenance…in fact, if you supply the Reversible Drum Vac with clean air, it’ll run maintenance free, darn near indefinitely.

That’s not to say things can’t go wrong…Murphy’s Law still applies…but most anything that can go wrong with the EXAIR Reversible Drum Vac can be identified fairly easily, and remedied fairly quickly. Here’s a rundown of “the usual suspects:”

  • Vacuum leaks.  Even small leaks can be a big problem…a crack or split in the hose, a worn hose cuff, a damaged seal, even a hairline crack in the drum or lid…if air can enter anywhere other than the suction end of the hose, vacuum performance can suffer.  The first thing to do in most any troubleshooting procedure is a visual inspection, and the Reversible Drum Vac is no exception.  We stock the gaskets for the vacuum hose quick connect, as well as the drum lid seals.
Make sure the gasket is clean, in good condition                  The hose cuff should fit snugly on the quick connect
and properly seated.                                                                                             elbow’s barbs.
Pay particular attention to drum lid penetrations.               The drum itself can also be susceptible to corrosion.
All EXAIR Industrial Vacuum drum lids come with an EPDM seal glued in place. If it gets rolled (center) or damaged (right) it’ll need to be replaced to ensure optimal vacuum performance.
  • Compressed air supply, part 1. There are some tight passages in the  Venturi chamber inside the Reversible Drum Vac; this is how the vacuum is generated.  Any contaminants such as dirt or rust can accumulate in these passages, hampering the ability to draw its rated vacuum levels.
    Actual photos of dirt, debris, and contamination we’ve found in Reversible Drum Vacs sent in for Factory Refurbishment Service (ask an Application Engineer for details.)

    Use of a Filter Separator (like our Model 9004 Automatic Drain Filter Separator) with a 5 micron particulate element is recommended.  If the Reversible Drum Vac does get dirty inside, though, it can be cleaned pretty easily…here’s a video that walks you through the process:

  • Compressed air supply, part 2.  The Reversible Drum Vac will produce rated performance when supplied with compressed air at 80psig.  Make sure you can get enough air to it; if your supply line is too long and/or too small in diameter, you’ll get line loss…and poor performance. Use a 3/8″ ID compressed air hose, or a 1/2″ ID if it’s longer than about 10 feet, and avoid any restrictions like quick connect fittings.
  • Compressed air supply, part 3.  If you want to fill the drum a little faster, you can increase the supply pressure to 100psig or so.  Too high of a supply pressure can actually degrade vacuum performance, though.  Excessive pressure can create enough flow to overwhelm the Venturi, hampering its ability to generate vacuum.
  • Safety Shutoff Valve Float.  The Reversible Drum Vac provides overflow prevention via a plastic float that rises when the drum is full.  This breaks the vacuum so that no more liquid can be pumped into a full drum.  When the float rises, you’ll hear a change in pitch.  If you hear this, and the drum isn’t full, remove the Reversible Drum Vac from the drum lid and turn it upside down/right side up a few times.  The float should move freely, all the way from the bottom to the top of its chamber.  If it doesn’t, remove it and make sure the float, o-ring, and the inside of the chamber are clean.  Certain chemicals can cause the float and/or o-ring to swell, which will impede its free movement.  If the body of the Reversible Drum Vac is damaged (pro tip: don’t drop it) that can also cause the float to hang up and not work properly.
If the float doesn’t move freely, remove it (snap ring pliers not included,) clean and reassemble.

Like I said, these are just the first things you want to look for, and it’s highly likely you’re going to solve the problem before you reach the end of this list.  If your Reversible Drum Vac (or any EXAIR product) isn’t giving you the results you’re looking for, though, don’t hesitate to call an Application Engineer.  Chances are, the vacuum unit is just fine and just needs a fresh gasket, a little cleanup, or a new drum. We want to make sure you get the most out of our products.

Russ Bowman
Application Engineer
EXAIR Corporation
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Reversible Drum Vac Services Ultrasonic Cleaner

The other day, I got a call from a customer who was frustrated with how long it took to change the solution out in their shop’s ultrasonic cleaners. Most folks are familiar with ultrasonic cleaners as the magic contraption that jewelry shops use to keep the gold and silver in their display cabinets all bright & shiny. My first thought was, this caller is NOT talking about those. Turns out, they come in MUCH larger sizes, and are used to clean a variety of industrial parts.

They were using a small submersible pump, but it was troublesome in that they could only use a 1/2″ hose (it was actually made for aquarium use,) and it took a long time to get 25-30 gallons out of their cleaners. Plus, there was always a little left in the bottom that had to be scooped out, because the centrifugal pump lost suction with about 1/2″ of liquid still standing in the bottom.

Since they were pumping it into one of the 30 gallon drums that they received the solution in, the EXAIR Model 6196-30 Reversible Drum Vac System (for 30 Gallon Drum) was an ideal choice. It used to take up to 15 minutes to empty the ultrasonic cleaner now takes about a minute, and they can get it all out, except for a small amount that has to be wiped up with a sponge.

The EXAIR Reversible Drum Vac - four sizes to choose from; tools & accessories to fit your needs.
The EXAIR Reversible Drum Vac – four sizes to choose from; tools & accessories to fit your needs.

EXAIR has a wide range of Industrial Vacuums to choose from…wet or dry, big or small, and a variety of accessories & tools to make life easier. If you’d like to find out how to turn a standard drum into an air operated vacuum system, give me a call.

Russ Bowman
Application Engineer
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