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Performance & Attention To Detail

The industry's leading performance is about doing all of the little things right. And as anyone whose been in this business long enough will tell you, the little things make all the difference. Together with our customers, we've created the perfect machine for hydro excavating. And we've done it in a way that means the lowest long-term cost of ownership.

GapVax HV56 Hydro Excavator
HV Series Filtration


Wet/Dry Filtration

When we talk about the lowest long-term cost of ownership, it all starts with the filtration system. It's what makes a GapVax different than any other truck, and it's why our trucks last the longest, are the easiest to work on, and have the highest resale value on the market.


An Operator Perspective

What makes GapVax different from any other company in the industry is that we built our trucks for ourselves first. So all those little annoying things that go wrong— bags clogged, blower overheating, rock-in-the-boom— we took care of them. This truck wasn't engineered in an office. It was figured out in a coal plant by mechanics and operators. Because when you're miles from the shop and you need to get the job done to get paid, you wouldn't want anything else.

GapVax HV56 Hydro Excavator
GapVax HV55 Hydro Excavator


Ready for Anything

Bury the boom in water or ash, and let it run all day— no problem. Hydro or air excavate until your arms fall off— no sweat. This machine is up for any job you can throw at it, from pipelines to power plants, from oilfields to shipyards. These trucks run in Americas dirtiest trenches, and they don't stop running.


Extreme Conditions

With GapVax there is no cookie-cutter. Each truck is custom built to the needs of each customer. If you're using water, and you've got frosty winters, we've got you covered with varying degrees of winterization. If you've got brutal heat, don't worry. Our air system is designed to handle it.

GapVax HV56 Hydro Excavator


HV Filtration Bags

The Yearly Bag Job

When you're vacuuming dry, there's no greater threat to your equipment than carryover to the baghouse. Our cyclone filtration system eliminates 90% of carryover. With proper service, a GapVax truck can normally operate 1,500 to 2,000 hours before requiring a change of filter bags. Since filtration/blower maintenance is the single greatest expense of a wet/dry vacuum truck, superior filtration immediately lowers operating costs.


  • True wet-dry capability

  • 12 - 16 yd³ debris body capacities

  • Vacuum systems to 6,600 cfm and 27" Hg

  • Booms up to 25' from centerline of chassis

  • 330° boom rotation                                                                                  * Designed to work off rear corner of truck, away from engine heat/noise

  • Available water heaters for easier excavation

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