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More About Waterjet
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Models of water jet cutter
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3x2m waterjet cutter with CNC controller
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6x3m waterjet cutter with CNC controller
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AB type 5 axis waterjet cutter
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AC type 5 axis waterjet cutter
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CNC waterjet pipe cutter
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Robotic waterjet cutter
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Portable water jet cutter
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Portable CNC waterjet cutting machine
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See more pictures of waterjet cutting machine
We are specialized in High Quality water jet cutter.
See available
Models and Specification.
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International Waterjet Machines (IWM) is based in California, USA.
The company has sales representatives
in Argentina, Brazil, China, Egypt, Mexico, Pakistan, Singapore, and UAE.
IWM's team has over 30 years of experience in ultra high pressure
equipments. Currently the
company's product line includes water jet cutter, high pressure
intensifiers and pumps, seals, high pressure cleaning machines, and uniquely designed
ultra high pressure sensor/transducers. IWM also provides customized
design and manufacture service for your special high pressure applications.
Water jet cutter is often used as general cutting tool for metal working as well as stone cutting tool, such as
ceramic cutting machine, marble cutting machine, and granite cutting machine.
There's no need to drill starting holes, because Abrasive Waterjet can pierce directly
through at any point. And with fragile materials like glass, breakage and corner chipping is
dramatically reduced compared to other cutting methords. Tool-to-part contact is eliminated,
so there is no friction, no thermal damage and no affect on metallurgical properties of
heat-treated metals.
Information on CNC Water jet machines supplied by IWM
Video Clips of Waterjet cutter
Waterjet Cutter Software Introduction
Waterjet cutting speed
Waterjet cutter consumable cost
Spare Parts and Garnet
Technical information
Waterjet CNC Software
Waterjet cutter trouble shooting guide
The pressure -
Often the waterjet pump has a fixed power rating, say 50HP or 100HP. The pressure of the output that a pump
can generate is mainly determined by the power rating of pump and the size of orifice installedd at the cutting head. The
power rating of pump determines the maximum pressure it can generate. The working pressure is determined
by both the pump capability and the size of orifce which affacts how fast the water comes out of the pump. Since the power
rating of the pump is
fixed, the working pressure is at the equilibrium of pump capability and the jetting output. The common orifice sizes are
0.010"(0.25mm) to 0.013"(0.33mm). The size of nozzle is usually 3 times the size of orifice. For most of the time, user does
not need to adjust the pressure. When cutting thin material, increase the cutting speed, and when dealing with thicker
materials, reduce the speed. There are some cases that pressure needs to be reduced then increased, for example,
when piercing glass, pressure should be reduced to avoid cracking. After piercing, pressure should be increased for
cutting.
Table Size -
We currently provide waterjet that can
cut 2 dimensional materials such as steel, alloys and stones. The largest
size of 2 dimensional cutting table is 12x3 meters (about 40'x10'). The smallest table we make is about 1x1m (3'x3').
Cut, drill, mill, punch, and stamp -
Our water jet cutter can drill holes and cut almost any complicated
two-dimensional shapes. This saves the cost of having different
machines as well as saving time for loading and unloading the
work piece from different cutting and drilling machines.
For more detailed infomation comparing waterjet
to other major cutting tools, see
Comparison Matrix of Various Cutting Machines. When the material to be cut is thick, it becomes
noticeable the diameter of hole on the top surface is larger than the diameter at the lower surface. This is due
to the fact when piercing the hole, the top surface has more time under pressure then the lower surface.
Continue to piercing the hole even after the hole has been through will help to even the diameger of hole.
The thickness -
The thickness of more than 100mm (4") for steel, alloys, marble, garnit
is achievable with abrasive waterjet. Most of the applications require
to cut less than 50mm or 2". Any special need beyond this, IWM can do custom
design to meet your requirement.
The edge -
The finishing surface is smooth and usually no need to have additional
process for most of the cases. Because of our special technology,
we can keep the cutting pressure of water jet stable and no
interruption of abrasive feeding. This produces steady abrasive water jet
stream for cutting and yields better edge surface as a result. Since the
cutting gap (kerf) is very small, the waste is minimal. The grit of abrasive
garnet also plays a role in determining the edge quality. The finer the
grit is, the better the edge finishing will be. The cutting speed may
be a little slower with finer grit garnet. For more information go to
China Garnet
The Jet Lag -
When the cutting speed is high, and the material is thick, the
position of where the abrasive stream exits the material is lagging the
position where the stream enters the material due the time it needs
to travel through the thickness of the material. Special care is taken in
the software to slow down the cutting head moving speed to allow
a good corner cut.
The pressure control - In some older systems, when the waterjet
is just turned on, there is a brief moment that the pressurized water stream
does not carry abrasive in it. This highly pressurized water stream could
break or delaminate certain brittle materials while piercing, such as glass or
other composites. In order to prevent this from happening,
IWM's water jet cutter has a special ramping feature
such that the water pressure ramps up gradually in the first 1-2 seconds
while the abrasive garnet is getting mixed into the water stream.
The constant working pressure for continuous cutting is set manually
before cutting is started.
No Heat Affected Zone - For many other cutting methods,
the area near the cutting edge often has internal strain or tension due to
the heat generated duing the cutting process. Cutting with water jet generates
very little heat, hence, the finished part will not have an area of Heat
Affected Zone or HAZ. Therefore generally there is no need for additional
heat treatment processing.
Safety -
The entire cutting process is safer compared to other cutting
methods. There is no spark, no poisonous gas involved during the
cutting process.
Quality -
Our waterjets use parts from USA. They have
good quality and are durable. Since the entire waterjet cutter machine
is assembled in China, the overall price is very good. We do very
detailed testing before each machine leaves our door to ensure
customer satisfaction. In addition, due to our careful design
of the machine, our customers are able to keep the consumable
cost low.
Warranty -
Our product comes with excellent warranty and warranty service.
We also provide hand on training program.
More information about IWM water jet machines
Generally, IWM's waterjet machine system comes in with three
parts, a high pressure intensifier (most important part), a work
table, and a CNC control unit (including software).
Competitive price -
The machines are integrated in China. We make our intensifier
with parts from USA (the best in the world). The pressure can be
from (270Mpa - 380Mpa). The higher the pressure is the fast it
cuts the material and the thicker it can cut. However, the price of the
machine is higher and parts will wear out faster with higher pressure
water jet cutters. Water flow rate can be up to 1 gal/min (4 L/min)
Overpass or cantilever -
The cutting table is made in China. We offer 1.0m x 1.0m up to
12mx3m in sizes. There are two styles. Overpass or cantilever.
The overpass style water jet cutter has one post on each side of the table.
The posts limit the loading and unloading of the work piece. The
positive side of overpass style is more rigid, less vibration, and
that is good for achieving better accuracy. The cantilever anchors
only on one side of the waterjet machine, hence the other side is
completely open, allowing easy loading and unloading of your
work piece.
Montion driver -
There are also two types of CNC controlled motors to drive the
movement of the cutting head unit where it is mounted on, step by
step motors or servo motors. Step by step is cheaper, but less
control accuracy.
Controller -
The CNC controller comes with IWM's water jet cutting machines are PC
based controllers. They have very high reliability as well as flexibility. It is
quick to learn, easy to operate, just mouse clicks, and low cost to upgrade.
The CNC software is life time free upgrade.
Accuracy -
With the modern CNC servo system, the positioning accuracy of the
waterjet cutting head is often very good. The actual part
tolerance the cutter will yield depends on many factors such as
the material being cut, the thickness, the grit of abrasive,
the size of the focusing nozzle, etc. In general, IWM's water jet
cutters produce parts with a tolerance at the range of 0.004"(0.1mm).
Water cutters or abrasive jet cutting machines -
We use parts from USA or Europe to make the cutting head
assembly. The nozzle is where high pressured water along with
abrasive comes out to perform the cutting. You can use water
only or with abrasive. Water only jets are used to cut softer
material, while water mixed with abrasive cuts harder material
such as Titanium. The nozzle is considered as consumable and
needs to be replaced frequently. We use the top of line orifice
and nozzle on our machine. The nozzle diameter is usually three
to four times the orifice diameter. The kerf width is usually 10%
larger than the nozzle diameter. Kerf width is about 0.8-1.0 mm.
Multi-head High Pressure Cutting -
To improve the cutting efficiency and reduce the cost, multi head
cutting is available with moden high pressure waterjetting technology.
The intesifier size (volumn of high pressure water it can produce
per minute) and the inner diameter of orifice goes hand with
hand to decide how many heads can be used. As a reference here,
with 55kpsi, 50 horse power intensifier, it can drive two heads
with 0.01 inch inner diameter orifices.
Compatible to industry standard -
One important point to make here is that we make our water jet cutter
compatible to the industry standards, therefore it is
very easy to find other spare part suppliers. It is not like you
have to buy parts from IWM if you buy the machine. You are
safe even if we went out of business! We make it easy for you.
Software -
The CNC software is part of the water jet cutting machine you purchase
from us. It is compatible to windows operating system. You can use
software such as AUTO CAD to do your design work then
transfer your design to the waterjet's control computer for the
cutting process.
Abrasive garnet - is very important for your cutting speed
and edge quality. It is also a big part of the consumable cost for
cutting parts. For more technical specification and price information,
visit
garnet made in China
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