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GapVax VHX Series

Configuration: GapVax VHX 'Bridge Law' compact wet/dry hydro excavator, 7.5 yd³ debris body, 4,000 cfm / 28 inHg PD blower, 750 gal water, 13 gpm pump, 15,000 lb payload; tandem-axle conventional truck shown, chassis make not stated

11 sourced values · Sources: GapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25; GapVax VHX Series product page. Retrieved 2026-10-25

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Dimension diagram

A B C D E F Side viewFront view Schematic, not to scale
AOverall lengthNot captured
BOverall height≈ 3,708 mm
CWheelbaseNot captured
DGround clearanceNot captured
EOverall widthNot captured
FTrack gauge / treadNot captured

Weights

SpecValueSource
GVWR (gross vehicle weight rating)Not publishedGapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25
Not published; brochure states 15,000 lb payload.

Dimensions

SpecValueSource
Overall lengthNot captured—
Overall widthNot captured—
Overall height≈ 3,708 mm
Published: 146 in
GapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25
Published as 12' 2" overall height.
WheelbaseNot captured—

Chassis

SpecValueSource
Chassis optionsNot captured—
Axle configurationNot captured—

Debris body

SpecValueSource
Debris body capacity≈ 5.73 m³
Published: 7.5 yd³
GapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25
7.5 cubic yards (product page header says 7 cu yd usable).
Debris body dump angleNot publishedGapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25
Only 'over 45°' published.

Vacuum system

SpecValueSource
Vacuum pump / blower typePositive displacement blower
Published: Positive displacement blower
GapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25
600 HP transfer case with air-shift engagement.
Blower / vacuum pump airflow≈ 6,796 m³/h
Published: 4,000 cfm
GapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25
Vacuum rating≈ 94.8 kPa
Published: 28 inHg
GapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25
Vacuum hose / boom tube diameter≈ 203 mm
Published: 8 in
GapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25
8" telescoping tube-in-tube boom.

Water system

SpecValueSource
Water tank capacity≈ 2,839 L
Published: 750 gal
GapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25
Two 375 gallon poly tanks.
Water pump flow≈ 49.2 L/min
Published: 13 gpm
GapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25
Water heaterOptional 400,000 BTU or 575,000 BTU
Published: Optional 400,000 BTU or 575,000 BTU
GapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25
Water pump pressure≈ 20.7 MPa
Published: 3,000 psi
GapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25

Boom

SpecValueSource
Boom reach≈ 6,706 mm
Published: 264 in
GapVax VHX Series brochure (image PDF, created 2021-09-24), linked from gapvax.com/products/vhx. Retrieved 2026-10-25
Published as 22' reach, 15° downward pivot.
Boom rotationNot captured—