DD-Technologies | Products | Orifices


Who else than the Dutch know how to deal with water!?

Long life diamond orifices!

What’s in a name? A lot in this case, they are called Long Life Orifices for a good reason. These orifices have inserts made of diamond, the hardest and most wear resistant material available. The longer lifetime of a diamond orifice not only results in a reduction of the number of orifices used. It also means the orifice keeps its accuracy and precision for a longer period. This allows for a better performance and a significantly reduced system down-time for orifice replacement and system calibration. All together the use of Long Life Orifices will make the entire process more cost-effective.

Dutch Diamond Technologies offers a wide assortment of diamond orifices for just about any job. All orifices are built to OEM specifications and in partnership with system manufacturers. For greater productivity and lower overall costs, performance can be tailored to the exact job requirements.


We offer 5 types of diamond orifices:

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DD-Technologies | Products | Orifices

Nano Diamond orifices:
Performance 800 – 1200 hours.
Depending on the application.

Black Diamond orifices:
Performance 1000 – 2500 hours.
Depending on the application.
(available per Jan. 2020)

Mono Crystalline orifices:
Performance 800 – 1200 hours.
Depending on the application.

Mono Crystalline orifices:
Performance 800 – 1200 hours.
For water only applications.

Mono Crystalline Micro orifices available ID. 0.04 – 0.1 mm.
For water only applications.

For more information contact our diamond orifices specialist Harry Heijnemans. harry.heijnemans@dd-technologies.com

Long life H2O orifices Benefits:
  • Reduced down-time
  • Lowest operational costs
  • Consistent jet quality
  • Resistant against extreme environments

Long Life Orifices for waterjet cutting are primarily designed for high volume production environments, for instance in the automotive or food industry. In comparison with orifice inserts made of sapphire a lifetime improvement of 15 to 20 times is achieved. Tests proved that after 1000 hours of operation with pure water at 4000 bar there are no measurable changes in jet quality and water usage. Tests with abrasive water jet cutting proved that after 100’000 cycles (on/off cycles) there are no measurable changes in jet quality and water usage.

The long life orifice inserts are extremely resistant to abrasives as well as to foreign particles and impurities in water. This results in a very good water jet quality and a constant volume flow, necessary to ensure consistent cutting quality. The consistent cutting quality can be maintained for a long operating time without changing the orifice in the cutting head. Apart from this improvement the diamond insert does not contain cracks or other imperfections in its structure and as a result implosion events are absent.

Tailor made solutions

What’s in a name? A lot in this case, they are called Long Life Orifices for a good reason. These orifices have inserts made of Dutch Diamond Technologies can provide “long life” orifice inserts tailored to your specific needs. Together with you we work on the best possible solution for your application. Due to the Dutch Diamond Technologies state of the art production facility we are able to meet almost any requirement to fulfill your expectations.

Pick & place technology applications

Long Life Air

Choosing the right nozzle is the most important step in optimizing component pick and place operations. Since a nozzle change operation is very expensive (it significantly adds to the overall assembly time), it is essential to minimize the number of nozzle changes.
Using Dutch Diamond Technologies Long Life Air nozzles will significantly increase the length of production cycles, while reducing failures and minimizing the assembly cycle time.

Long Life Air nozzles can be optimized for both sucking and blowing applications and are designed to OEM specifications.

Food, chemical and pharmaceutical processes

Long Life Chemical, Food and Pharma

These orifices are the diamond solution for spray drying, centrifuge orifices and paint and chemical spraying. One of the benefits of diamond is its chemical inertness. This makes Long Life chemical orifices suitable for applications like the mixing and stirring of even the most aggressive chemicals.

It is not only chemical applications that profit from the superb material properties of these orifices. Drying and spray drying applications of pharmaceuticals and food will benefit from the wear resistance and the optimized particle distribution.
Dutch Diamond Technologies provides a whole range of inserts, with material properties optimized for specific applications and markets. Inserts are developed to the most stringent design specifications and in collaboration with OEM or system engineers.

Orifices for the consumer market

Long Life Aqua

Imagine what the extreme properties of diamond can do for marketing consumer products. Products ranging from espresso machines to high pressure waterjet cleaners can be improved by using diamond Long Life Nozzles and Dutch Diamond Technologies can help make it happen. A Long Life Nozzle will not only improve the performance, but diamond will actually extend the lifetime of the product and create satisfied customers. There’s no better promotion than a word or review from a proud and pleased client.

Orifice user’s guide

In order to service the orifice correctly and protect your investment, we made a guide on how to change the orifice.

Changing the orifice in 10 steps:

Step 1: Pull firmly on the abrasive feed line to remove it from the head.

Note: If the line is hard to remove, apply a very small amount of silicone lubricant or food-grade lubricant to the 45° port to allow easier removal next time.

Step 2: Thoroughly rinse the outside of the cutting head and nozzle body with your system’s spray hose.  Rinse the inside by spraying water into the abrasive inlet port with the jet running at high or low pressure.  This will remove external and internal abrasive particles and assure proper seating.

Step 3: Turn the intensifier pump off and bleed all pressure from the system.

Step 4: Using a 1 1/16-in. wrench on the cutting head body and a 3/4-in. wrench on the nozzle nut, loosen the cutting head body and remove it from the nozzle body.

Step 5: Tap the body upside down on a table to remove the Orifice Assembly. If necessary, lightly pry on the mount with a screwdriver.

Step 6: Inspect again to make sure all parts, including the orifice and the seating surface in the body, are clean of any debris or garnet.  If needed, flush the Mixing Chamber by spraying water through the abrasive inlet port again.

Step 7: Apply a very small amount of Blue Lubricant at the top of the Orifice Assembly. (This should be just a thin layer)

Step 8: Drop the Orifice Assembly into the body, shaking the body until the assembly drops into the taper. Ensure that the Orifice Assembly is properly seated in the body before reattaching the Mixing Chamber to the Nozzle Body. An improperly seated orifice can damage your components and cause poor cut quality.

Step 9: Attach the Mixing Chamber to the Nozzle Body and tighten with 35–50 ft-lb of torque.


Over-tightening the cutting head will damage mating surfaces, such as the Nozzle Body. It can also damage the orifice mount, either by forcing the mount out of round, or by flattening it. Such damage is not covered by warranty.

Step 10: Reattach the abrasive feed line. If there is leakage, disassemble the Mixing Chamber from the Nozzle Body, make sure there is no grit or debris in the chamber, ensure that the orifice is properly seated and reattach the chamber to the body.  If leakage continues, it may be due to a worn Mixing Chamber or Nozzle Body.

Dutch Diamond Technologies BV
Kovel 2, 5431 ST Cuijk, The Netherlands
Phone: 0031-485-321060
Fax: 0031-485-311642

DD-Technologies, Cuijk

Dutch Diamond Technologies

Copyright © Dutch Diamond Technologies
All rights reserved.
Dutch Diamond Technologies is a member of the Meyco Holding with their headquarters in Switzerland.

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