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1. Your expectations of quality will be met in the service we provide

2. Your orders will be delivered on time

3. Your orders will be cut from quality approved materials, where we have supplied the material

4. You will receive a service tailored to your requirements

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Waterjet Cutting - Capabilities

PROCESS:    profiling with water at pressures up to  94,000  psi.:

Pure  water -  for  foams /  thin rubber  (up to 5mm  thick)

Water  and  abrasive (most  common  process)  cutting  any  material (unlike laser / plasma /  oxy-acetylene cutting)  EXCEPT

Toughened  glass   ( non toughened or  laminated glass  OK)

Diamonds -  harder than the  abrasive – so wont  cut


Bed size -  maximum  4 x 2m

It is possible to  cut  larger profiles in  stages – but accuracy of whole  cut will reduce.

Cutting  thickness

The waterjet will cut any thickness you  give it -  however  practical  consideration of  getting material onto the machine  means that maximum thickness is usually  250mm   (thicker possible  by  consultation)

However - 

Industry standard equipment  (cutting at  60,000  psi)  struggle  with producing an acceptable  economic cut  once you get  past  100mm in steel  ( softer material – aluminium can be thicker)

Cutting at 94,000  psi ( above industry standard) -  means thicker cuts  are possible -  Hydromar has cut 300mm thick alu /  130mm  steel / 130mm  carbon fibre composite.

Generally -  profiles  are cut from  flat  material ( it is possible to cut  / trim  3D objects  but need to discuss first).


Cut quality   Cut quality can be  varied  for  any part of the  profile –smoothness will depend on material.

Rough separation cut (Q1)   - fastest  cut speed /  lowest  cost -   possible  where other  process will re-finish the cut edge (milling ?)   or parts being welded together.

Standard -  economic cut (Q3) -  balance of  good  cut quality  (slower  cut speed / more  costly)   and  cost.(approx  ½  cut speed of separation cut -   double  the  cost)

Best  quality cut (Q5)  -    slower cut speed again / even more costly -  most often used for parts of a profile  where a  better quality is required -  may  allow customer to use profile  without  further machining.(may be up to 2  times  slower / more expensive than standard cut).

Squareness of  cut. – see diagram

Industry standard machines  -  cuts with a  taper  or kerf

Advanced  equipments – (Hydromar) – taper  is  ‘corrected’ to eliminate taper.  You can also  get it  to cut with a  fixed taper ( up to  9  degrees) in either  direction ( note  taper  will be consistent from top to bottom of  cut.)

Tolerance -   usually  + / -  0.25mm for thicknesses up to  50mm

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