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Ultra-high-pressure water jetting since 1995

Take the concrete off. Leave the steel intact.

One contractor from four litres a minute to 45,000 psi. Hydrodemolition, coating and corrosion stripping, line marking removal and shutdown cleaning, out of depots in Auckland, Wellington, Taranaki and Taupo.

Plan a removal0800 278 2629
Hydrodemolition cross-sectionA pressurised water jet strips 100mm of concrete cover from a deck, leaving the reinforcing steel exposed and intact.40,000 psi100 mm removedreinforcement intact
An Aquamax truck on the Kaikoura road overbridge with a white water jet throwing spray across the deck edge
State Highway 1 north of Kaikoura. Hydrodemolition to 100 mm on an overbridge deck across 32 repair sites, with the reinforcement left in place and reusable.SH1 Kaikoura

Before it beats another contractor, it has to beat a jackhammer.

A breaker gang gets through a reinforced slab at a quarter of a cubic metre an hour per operator, and every blow it lands travels into the structure you are keeping. Water at 20,000 psi and above removes sound concrete faster, leaves the reinforcement clean and in place, and puts no vibration or micro-fracturing into the substrate that stays.

How the two methods compare
A concrete beam profiled by water with the aggregate and reinforcing exposed and the surrounding surface untouched
A beam profiled by water. The aggregate and reinforcing are exposed, the concrete either side of the cut is untouched, and nothing was struck to get there.

5.4x faster

Faster through a reinforced slab at a 100 mm cut, per operator. Both figures are indicative and confirmed on site.

Concrete removal rate: hand-held breaker versus ultra-high-pressure water
Hand-held breaker0.19 to 0.26 m3/hr
Ultra-high-pressure water0.93 to 1.49 m3/hr

What we remove

Close view of a geothermal turbine rotor with the blades cleaned back to bare metal
A geothermal turbine rotor descaled back to bare metal during a plant shutdown. Water removes the deposit without touching the blade profile or the balance of the rotor.Geothermal shutdown

One pressure range does not do every job.

The pressure is chosen for the thing being removed, not for the machine. Hover a job to see where it sits.

Hydrodemolition
20,000-40,000
Robotic hydrodemolition
15,000-20,000
Paint and corrosion stripping
40,000
Road line marking removal
40,000
Stripe Hog
40,000
Bitumen flushing
40,000
We've used Aquamax for 15 years on our annual shuts. I continue to be impressed with their project planning, health and safety management and the quality work delivered for us.
Charley Beagle, Asset Manager, Contact Energy

Worked for

  • Downer
  • Fulton Hogan
  • Higgins
  • Contact Energy
  • Genesis Energy
  • Shell Todd
  • Marsden Point
  • Fitzroy
  • Hawkins
  • Naylor Love
  • Fletcher Construction
  • FCC
  • Concrete Solutions
  • Contech
  • KiwiRail
  • Babcock
  • Interislander
  • Port of Napier
  • NSB Protective Coatings
  • Enhance Roof Coatings
  • NIWWA

Plant

Nine pumping units from 4 litres a minute to 45,000 psi, with the robots, lances and vacuum recovery that go with them. Every published pressure and flow figure is on one page.

Plant and capability

Where we work

An operator in a hood and hi-vis holding a lance that strips red and white paint from an aircraft fuselage
The same pump, a different nozzle and a lower pressure. Paint and primer come off an aircraft fuselage without abrasive, without heat and without thinning the skin underneath.Aviation stripping

Tell us what has to come off and how long you have.

Plan a removalContact
Call 0800 278 2629