+44 (0) 1903 892 358 info@hughes-pumps.co.uk


Cutting with ease

Hydrodemolition (also referred to as concrete cutting) is a process of using a water jet at 1000 to 1400bar (14,500 to 20,000psi) to remove loose, deteriorated & damaged concrete from road bridges & other concrete structures & to expose steel reinforcing bars for inspection.

Many jobs are carried out using a hand held jetting gun. In these circumstances the reaction force created by the water jet should not exceed 250 Newton’s (25kgf) to ensure the operator can work in a safe manner e.g. 35lpm at 1400bar.

Higher flowrate increases reaction force so the cutting nozzle needs to be constrained. At 120lpm at 1000bar it is common to use a gimbal device to connect the jetting gun to. For maximum productivity the HPS5000 pump with a performance of 200lpm at 1000bar is coupled to a hydrodemolition robot.


Higher flowrate increases reaction force so the cutting nozzle needs to be constrained

Benefits of Water Jetting

  • Leaves a sound surface ready for repair
  • Good quality concrete is unaffected
  • No micro cracks which pneumatic hammers cause
  • Vibration to the surrounding structure eliminated
  • Faster than any other process
  • Steel reinforcing bars do not get damaged but are blasted by the water jet & concrete particles to descale them
  • Depth of cut is controllable
  • Robots keep the operator away from the water jet
  • Robots are programmable to provide accurate, consistent results
  • Can be used to clean & roughen (scabble) concrete surfaces
  • The pump is versatile & can be used for other cleaning & cutting applications

Email newsletter

We send out monthly emails that include updates about the factory, staff spotlights, stock units and other useful information. If you would like to receive this email from us, please enter your details here.

Water Jetting brochure

Find out about our range of water jetting equipment - pumps, units and large range of accessories. The PDF Water Jetting brochure is also available in German, French and Czech languages.

Hughes pumps ltd water jetting brochure 2022

Process Pumps brochure

Find out about our range of process pumps, which cover a large range of applications.

hughes pumps ltd process pumps brochure 2022