Posts Tagged ‘Jet-Edge’

Two Types of Waterjets : Pure Waterjet vs Abrasive Waterjets

Thursday, July 19th, 2012


The two types of waterjets are the pure waterjet and the abrasive waterjet. Both have unique capabilities proven a benefit to industry.

iwm 5x10 Two Types of Waterjets :  Pure Waterjet vs Abrasive Waterjets

 Pure Waterjet

Pure waterjet is the original water cutting method. The first commercial applications were in the early to mid 1970s, and involved the cutting of corrugated cardboard. The largest uses for pure waterjet cutting are disposable diapers, tissue paper, and automotive interiors. In the cases of tissue paper and disposable diapers the waterjet process creates less moisture on the material than touching or breathing on it. Unplanned down time, common to other cutting processes, cost over $20,000 per hour (US dollar) in some diaper or tissue plants. The waterjet provides the 24 hour per day, 7 day per week, 360 day per year operation required by such applications – maintenance can be scheduled into production.

Pure waterjet attributes:














Pure Waterjet Cutting Heads

As you may recall from an earlier section of this document, the basic waterjet process involves water flowing from a pump, through plumbing, and out a cutting head.

 In waterjet cutting, the material removal process can be described as a supersonic erosion process. It is not pressure, but stream velocity that tears away microscopic pieces or grains of material. Pressure and velocity are two distinct forms of energy. But how is the pump’s water pressure converted to this other form of energy, water velocity? The answer lies in a tiny jewel. A jewel is affixed to the end of the plumbing tubing. The jewel has a tiny hole in it. The pressurized water passes through this tiny opening changing the pressure to velocity. At approximately

40,000 psi the resulting stream that passes out of the orifice is traveling at Mach 2. And at 60,000 psi the speed is over Mach 3.



Question: How hot is the water in a Mach 3 waterjet stream?

Answer: The water is warmed as it is accelerated to high speed. Frictional forces and other

factors warm the stream as it exits the orifice. In let water temperature provides the starting point.

Water temperature is then raised 2 to 3 degrees for each 1,000 psi. The quick answer is the

Mach 3 jet is approximately 170 to 180 degrees F.


Pure waterjet orifice diameter ranges from 0.004 to 0.010 inch for typical cutting. When waterblasting concrete with a nozzle traversing back and forth on a tractor, a single large orifice of up to 1/10th of an inch is often used.

The three common types of orifice materials (sapphire, ruby, diamond) each have their own unique attributes. Sapphire is the most common orifice material used today. It is a man-made, single crystal jewel. It has a fairly good quality stream, and has a life, with good water quality, of approximately 50 to 100 cutting hours. In abrasive waterjet applications the sapphire’s life is ½ that of pure waterjet applications.

Ruby can also be used in abrasive waterjet applications. The stream characteristics are well suited for abrasivejet, but are not well suited for pure waterjet cutting. The cost is approximately the same as the sapphire.

Diamond has considerably longer run life (800 to 2,000 hours) but is 10 to 20 times more costly.

Diamond is especially useful where 24 hour per day operation is required. Diamonds, unlike the other orifice types, can sometimes be ultrasonically cleaned and reused.

776px Evolution of the Abrasive Waterjet Nozzle Two Types of Waterjets :  Pure Waterjet vs Abrasive Waterjets

Abrasive Waterjets

The abrasive waterjet differs from the pure waterjet in just a few ways. In pure waterjet, the supersonic stream erodes the material. In the abrasive waterjet, the waterjet stream accelerates abrasive particles and those particles, not the water, erode the material. The abrasive waterjet is hundreds, if not thousands of times more powerful than a pure Waterjet. Both the waterjet and the abrasive waterjet have their place. Where the pure waterjet cuts soft materials, the abrasive waterjet cuts hard materials, such as metals, stone, composites and ceramics. Abrasive waterjets using standard parameters can cut materials with hardness up to and slightly beyond aluminum oxide ceramic (often called Alumina, AD 99.9). In the next section we will explore abrasive waterjet attributes and how the abrasive waterjet cutting head works.

Abrasive Waterjet attributes:


















Abrasive Waterjet Cutting Heads

Within every abrasive waterjet is a pure waterjet. abrasive is added after the pure Waterjet stream is created. Then the abrasive particles are accelerated, like a bullet in a rifle, down the mixing tube.

 The abrasive used in abrasive waterjet cutting is hard sand that is specially screened and sized.

The most common abrasive is garnet. Garnet is hard, tough and inexpensive. Like the pink colored sandpaper found at the hardware store, different mesh sizes are used for different jobs.

120 Mesh – produces smooth surface

80 Mesh – most common, general purpose

50 Mesh – cuts a little faster than 80, with slightly rougher surface.

The mixing tube acts like a rifle barrel to accelerate the abrasive particles. They, like the orifice, come in many different sizes and replacement life. Mixing tubes are approximately 3 inches long,

¼ inch in diameter, and have internal diameters ranging from 0.020 to 0.060 inch, with the most common being 0.040 inch.

Although the abrasive waterjet machine typically is considered simple to operate and ‘bullet proof,’ the mixing tube does require operator attention. A major technological advancement in Waterjet was the invention of truly long-life mixing tubes. Unfortunately, the longer life tubes are far more brittle than their predecessors, tungsten carbide tubes. If the cutting head comes in contact with clamps, weights, or the target material the tube may be broken. Broken tubes cannot be repaired. Today’s most advanced systems incorporate collision detection to spare the mixing tube.

The standoff distance between the mixing tube and the target material is typically 0.010 to 0.150 inch. Larger standoff (greater than 0.080 inch) can cause a frosting to appear atop the cut edge of the part. Many Waterjet systems reduce or eliminate this frosting by cutting under water or using other techniques.

The consumable items in an abrasive Waterjet are the water, abrasive, orifice (usually Ruby) and mixing tube. The abrasive and mixing tube are exclusive to the abrasive waterjet. The other consumables are also found in the pure waterjet.

Jet Edge 5 Axis Water Jet Technology

Monday, June 18th, 2012

Jet Edge is now offering  5 axis water jet cutting  technology with Intelligent Kerf Compensation (IKC).

Available on select Jet Edge 5 axis water jet cutting systems, the innovative IKC  5 axis water jet cutting cutting head is capable of making inclined cuts and controlling kerf to ensure optimal part quality.  The IKC’s capabilities include 600º rotation, a maximum angle of +/- 60º, and dynamic precision from +/-0.2 to +/-0.5 mm/m, depending on the tilt of head.

idro line water jet Jet Edge 5 Axis Water Jet Technology

The Idro line’s high-precision ground rack and pinion X and Y axes and ball-screw-driven 5.9” (150 mm) Z axis make it one of the most accurate waterjet systems available.  It maintains a cutting tolerance +/- 0.004” (0,1 mm/m), and repeatability accuracy tolerance of +/- 0.001” (0,025 mm) and supports a contouring and rapid feed rate of 0-1575 ipm (0-40000 mm/min.)  Motion components are protected by steel covers with labyrinth lip seals to ensure lasting performance.

The Idro line is equipped with programmable contact height sensing and comes standard with one 5 axis cutting head; a second 5 axis or 3 axis cutting head can be added.  Other standard features include a stainless steel tank, automatic safety guards with clear windows on front and back, and a dredge conveyor for abrasive removal. Its many options include a rotating axis for pipe cutting, fire jet etching system, a drill and twin shuttles.  Free software updates are included for the life of the machine. The Idro line’s monolithic design expedites installation and makes it easy to relocate if necessary. Its rigid fixed upright bridge structure can be moved out of the way for forklift or crane loading.

ECO-JET Direct Drive Waterjet Pump – 30HP, 60KSI

Friday, June 15th, 2012


eco pump 2 ECO JET Direct Drive Waterjet Pump   30HP, 60KSI

Energy efficient and economical, Jet Edge’s ECO-JET direct drive waterjet pump produces up to 1 GPM of 55,000 psi ultra-high pressure water for precision waterjet cutting and surface preparation applications. Like all Jet Edge products, the ECO-JET features Jet Edge’s signature rock-solid construction for lasting performance.


  • Energy-efficient and eco-friendly – Uses up to 40% less electricity than a 50hp pump, but produces same output!
  • Economically priced without sacrificing quality.
  • Easy to maintain.
  • Powers any manufacturer’s waterjet system!*

* Waterjet table or tool must be capable of sending a pressure relief signal to the pump.

eco pump 1 ECO JET Direct Drive Waterjet Pump   30HP, 60KSI


  • Power: 30HP (22kw)
  • Output Pressure: 55,000 psi (3800 bar) continuous
  • Flow Rate: 1 GPM (3.8 L/min)
  • Maximum Orifice: .015 in (.38 mm)
  • Power Supply: 3-Phase, 460 VAC (60Hz), 35AMP
  • LWH: 50 inch x 32 inch x 46 inch (1270 mm x 820 mm x 1170 mm)
  • Weight: 1500 lb (680 kg); approximate

Standard Features

  • High-efficiency TEFC motor
  • 1800 nominal motor speed (rpm)
  • User serviceable attenuator to reduce pressure fluctuations
  • Liquid-filled pressure gauges
  • UHP safety shielded tubing
  • U/L, CU/L listed industrial control panel


  • Ambient Room Temperature: 50°-95° F (10°-35° C)
  • Relative Humidity: Non condensing, maximum 95% at 95ºF (35ºC)

Electric Motor

  • Motor Output: 30 hp (22 kw)
  • Motor Type: High Eciency TEFC electric motor
  • Full load current: 35A @460VAC (60 Hz)
  • Requires a voltage/frequency option kit to match local electrical requirements.
    eco pump ECO JET Direct Drive Waterjet Pump   30HP, 60KSI

Low-Pressure Water

  • Supply Requirements:
    Coolant Water: 4 GPM (19 lpm)
    Feed Water: 4.5 to 5 GPM (17-19 lpm)
    Minimum pressure 60 psi (4.2 bar)
    Maximum temperature 70ºF (21ºC)
  • On-board filtration to 0.45 micron
  • Type: Pretreated, <100 TDS, PH 6-8, Silica <15PPM


Water Jet: Over Flow to Drain System

Wednesday, April 25th, 2012

 Overflow to Drain System      

150 Micron Nylon Bag Pre Filter
50 Gallon Stainless Steel Settling Weir with Removal Baffles
Stainless Steel 07A Size 1 Bag Vessel
5 Micron, Size 1, Polyester Felt “ Posi-Seal ” Final Filter
.5” Cast Iron Heavy Duty Sandpiper AOD Pump
Adjustable Air Regulator with Gauge
Pre Plumbed and Mounted on an 18” x 42” Steel Base with Casters

over flow ro drain system  Water Jet:   Over Flow to Drain System


Jet Edge Aquavision Slimline PC Upgrade!

Tuesday, January 17th, 2012

Upgrade now to a more robust PC with an industrial motherboard with Embedded Windows 2009(XP), an Intel Core, 2.93GHz, 4MB Dual-Core Processor, 2GB RAM, 160GB hard drive, 24X DVD+R DVD Writer, USB Port Hub, new Digital I/O board and new Encoder input card.
The motion system software has been updated to run on the most recent release of Embedded
Windows 2009 (XP). From an end user standpoint, everything operates the same but now the
controller is more networkable (end user must congure their own network connection as Jet
Edge doesn’t provide networking support) and supports USB!

1 8 2012 6 50 04 PM Jet Edge Aquavision Slimline PC Upgrade!

How Does Water Jet Cutting Machine Work

Sunday, January 8th, 2012

A water jet machine has essentially two components: a high intensity pump that pressurizes water to 40,000 — 90,000 PSI , and a cutting head assembly mounted on a frame that can move along the  x-y-z direction over the material being cut. Pressurized water is forced through a tiny nozzle hole to create high energy density stream that can erode and tear the surface of materials to achieve a cutting affect.  Pure water ca alone can cut plastics, foam, wood, resilient floor coverings, rubber and similar soft substances.  In some cases, water is mixed with a garnet abrasive to cut harder materials such as metals, stone, ceramics, glass and dense composites.

1 8 2012 9 40 00 AM How Does Water Jet Cutting Machine Work1 8 2012 9 44 12 AM How Does Water Jet Cutting Machine Work





Jet Edge Waterjets Tech Tip 3 – Tips for Water Jet Cutting Glass

Wednesday, August 17th, 2011

Waterjets Tech Tip 3 – Tips for Water Jet Cutting Glass

Jet Edge 5 x51 Jet Edge Waterjets Tech Tip 3   Tips for Water Jet Cutting Glass

  • Reduce the risk of chipping by using a low-pressure pierce of approximately 10,000 psi.
  • Reduce low-pressure piercing time from two minutes to 10-15 seconds (depending on thickness) by cutting a tiny circle rather than leaving the jet fixed on one spot.
  • 120 grit garnet will produce the best edge quality. If speed is your priority and chipping not a concern, use 80 grit garnet
  • Cut at 75,000 PSI to increase cut speed by 50-75% and improve edge quality.
  • Support glass on a sheet of 3/16” corrugated PVC rather than directly on the metal slats. This reduces the risk of chipping and fogging.
  • If your projects require you to frequently raise and lower pressure, install a patented Jet Edge   dual pressure valve to save time and prolong  waterjet pump  component life.
  • Tempered glass cannot be cut with waterjet.

China Steel Installs Massive 24’x13’ 90KSI Jet Edge Waterjet Machine

Friday, July 29th, 2011

China Steel, a custom fabrication and machine shop in Sault Ste. Marie, Ontario, recently added a massive 90KSI Jet Edge waterjet cutting machine capable of cutting virtually any material up to 24’x13’.

With its 100hp 90KSI Jet Edge X-Stream powered system, China Steel (pronounced “keena”) can cut parts up to 50% faster than waterjet shops with standard 60KSI waterjets. They also can cut large parts twice as fast with dual abrasivejet cutting heads with mirroring capabilities.

7 27 2011 8 22 56 PM China Steel Installs Massive 24’x13’ 90KSI Jet Edge Waterjet Machine

Established in the late 1950s, China Steel continues to be owned and operated by the China family, which traces its proud metalworking heritage to early 19th Century blacksmiths and metalworkers in Friuli, Italy. Under President Fred China and brother Vice President Carlo China’s direction, China Steel has grown to become a diversified and technologically advanced metalworking plant with sales worldwide.

The multi-disciplined ISO 9001:2008-registered shop offers many metalworking services, including CNC and conventional machining, milling, turning, boring, bending, cutting, rolling, pipe processing, robotic welding and much more. It manufactures a wide range of custom products, including fabricated plate products, structural steel, decorative metalwork and machined parts. Its diverse projects have included everything from decorative staircases to locomotive underframes to dozens of parts for the U.S. Army Stryker armored vehicles to stainless steel dewatering wheels for steel mills in the Ukraine and India.


China Steel has always kept a sharp competitive edge by diversifying their products and services and by continually investing in the latest technology, explained Carlo China. “In order to stay in business, you have to be diversified and keep up with technology,” Carlo noted. “If you don’t keep up with technology, you might as well put a lock on the door.” It was the company’s belief in diversification and technology that compelled them to purchase not just a waterjet system, but to invest in one of the largest and most powerful waterjets available.

JACQUET Mid Atlantic Adds 4th Jet Edge Water Jet Cutting Machine

Monday, July 11th, 2011

Metal Service Center Jacquet waterjet 300x199 JACQUET Mid Atlantic Adds 4th Jet Edge Water Jet Cutting Machine

Metals Processing and Distribution Center Specializes in Stainless Steel, Nickel Alloys

POTTSTOWN, Pa. (June 22, 2011) – Waterjet systems manufacturer Jet Edge, Inc. is pleased to announce that JACQUET Mid Atlantic has added a fourth Jet Edge water jet cutting machine at its metal processing facility in Pottstown, Pa.  The Mid Rail Gantry system is JACQUET’s ninth Jet Edge waterjet nationwide.

JACQUET Mid Atlantic’s newest waterjet cutting machine is capable of cutting materials up to 21’x13’.   It features two abrasivejet cutting heads with mirroring capabilities to cut large parts twice as fast. Powered by a 100hp, 60,000 psi water jet intensifier pump, the system features independent programmable Z carriages, programmable height sensing, a submerged cutting package, closed-loop water filtration, and a garnet removal system.

A subsidiary of Jacquet Metals of Lyon Saint Priest, France, JACQUET Mid Atlantic is one of five JACQUET metal service centers in North America. The company also has service centers in Charlotte, Houston, Racine, Wis., and Irvine, Calif.

JACQUET specializes in supplying and processing stainless steel and nickel alloys for OEMS, fabricators and machine shops that support primarily the oil and gas, power generation, pollution control systems and water purification industries. JACQUET’s North American service centers provide waterjet and plasma part cutting.  The company stocks 19 different grades of stainless steel and nickel alloy plates in a wide variety of sizes and thicknesses.


New Contact Height Sensor for High Rail Gantry Waterjet Cutting System

Thursday, June 9th, 2011

je logo New Contact Height Sensor for High Rail Gantry Waterjet Cutting SystemJet Edge, Inc., is pleased to introduce a new Contact Height Sensor for its High Rail Gantry waterjet cutting system.

With Jet Edge’s Contact Height Sensor, waterjet operators can overcome significant fluctuations in material flatness by maintaining a constant automatic standoff within approximately 0.040″ (1 mm) of a set standoff height. As a result, they will achieve optimum cut quality, tolerance, taper and speed without having to monitor the standoff.

Jet Edge’s Contact Height Sensor senses directly around the nozzle so the information is as close as possible to the nozzle location. The sensor arm can either ride on the plate or have infinite programming for the time it is in contact and raised. This gives operators complete control over how they want the height sensing to work for their application. Jet Edge’s AquaVision Di controller software also provides feature avoidance for the Contact Height Sensor. This protects the height sensor and cutting head by automatically providing a tool path that will not allow the cutting head to pass over a previously-cut part which can tip up after being cut. The software can be configured to independently control up to four cutting heads with height sensing.

Jet Edge’s Contact Height Sensor is compatible with the company’s Permalign abrasivejet cutting head.