Waterjet-Cutting Johannesburg

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WaterJet Technology



In the 1950s, forestry engineer Norman Franz experimented with an early form of water jet cutter to cut lumber. However, the technology did not advance notably until the 1970s when Mohamed Hashish created a technique to add abrasives to the water jet cutter. This and other concepts allowed Yih-Ho Michael Pao to develop commercial "ultrahigh-pressure WaterJets and abrasive-WaterJets into better tools for industrial cutting, drilling, and milling, especially for the flexible factory automation." Today the water jet is unparalleled in many aspects of cutting and has changed the way many products are manufactured. Many types of water jets exist today, including plain water jets, abrasive water jets, percussive water jets, cavitation jets and hybrid jets.



The cutter is commonly connected to a high-pressure water pump where the water is then ejected from the nozzle, cutting through the material by spraying it with the jet of high-speed water. Additives in the form of suspended grit or other abrasives, such as garnet and aluminum oxide, can assist in this process.


A diagram of a water jet cutter:
1 - high-pressure water inlet
2 - jewel (ruby or diamond)
3 - abrasive (garnet)
4 - mixing tube
5 - guard
6 - cutting water jet
7 - cut material



In addition to no heat-affected zone, the benefits and applications for WaterJet technology are limitless and ever-expanding. In comparison to other cutting technologies:
  WaterJet Plasma Laser  EDM
 Process Erosion
high speed
Burning / melting
process using high
temperature ionized
gas arc
laser light beam 
process using electrical

Any material.

Primarily steel,
stainless steel and

Primarily steel,
stainless and

Can also cut a
of other materials.

materials only.  


Up to 24 inches,
virtually any

Z constraint
is only
limit to thickness.

Up to 2-3 inches,
depending on

Generally 1 inch
or less,

Generally 12
inch or less.

Up to .001"

Up to .010" 

Up to .001" 

Up to .0001" 

Same setup
for all

Same setup
for all

gases for
different jobs

wire types for
different jobs

As the grid above illustrates - WaterJet cutting technology has clear advantages over other cutting methods.


Great deals on water jet cutting kit. We can help you with all of this:
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Laser Cutting
Metal Cutting
Any materials possible
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