This section provides an overview for air nozzles as well as their applications and principles. Also, please take a look at the list of 20 air nozzle manufacturers and their company rankings. Here are the top-ranked air nozzle companies as of December, 2023: 1.EXAIR LLC, 2.Helander, 3.Hy-Grade Metal Products Corp..
An air nozzle is a nozzle attached to the end of a pneumatic pipe.
It is used to inject or supply compressed air by specifying the direction, amount, and strength of the gas flow. Note that the shape of the jet from the nozzle depends on the application.
Since the flow rate and spray angle also change as the operating pressure changes, the standard operating pressure and appropriate pressure are defined for each nozzle. The flow rate and spray angle according to these pressures are presented as catalog values.
Air Nozzles are used to remove oil, water droplets, chips, etc. to reduce cleaning time, and to heat, cool, or dry heated objects by supplying temperature-controlled air to the surface.
In the industrial field, they are often incorporated into mass-production equipment or installed on conveyor belts for cleaning, heating, and cooling. They are also attached to air curtains and air showers installed at the entrances to clean rooms in testing laboratories, food factories, etc.
Figure 1. Types and characteristics of air nozzles
The principle of Air Nozzles is simple. By attaching it to the end of a compressed air pipe, it defines the direction in which the compressed air flows and prevents loss due to shear with the outside air, so that compressed air energy can be sprayed onto the object without wasting it.
Some Air Nozzles also take advantage of outside air being entrained by the compressed air being injected at high speed and the pressure drop caused by Bernoulli's theorem. There are many other types, such as those that aim to draw in outside air and increase the flow rate.
Figure 2. Selection of air nozzle
Air Nozzle selection can be divided into three main steps.
First, it is necessary to experiment to ascertain the distance, width, and length required for blowing air. Naturally, the farther, wider, and stronger the air is blown, the greater the required pressure and air volume.
These values are listed in the catalog specifications for Air Nozzles, so it is possible to select an Air Nozzle based on these values.
Next, check the piping and pneumatic circuit where the Air Nozzle will be installed. Note that if the piping from the pump to the Air Nozzle is long, or if there are many bends or branches, or if the piping thickness varies, the pressure at the end of the piping will also vary.
The pressure to be used should be predicted according to the piping plan, and the pump, compressor, piping, and Air Nozzle should be capable of supplying the required flow rate. Even if Air Nozzles meet the specifications, they will not be able to demonstrate their performance unless the piping and pneumatic circuits are capable of fully demonstrating their performance.
Pressure is defined based on the nozzle attachment point of the piping. Therefore, when measuring the working pressure, the pressure near the Air Nozzle should be used as a reference.
Flow rate is defined in JIS B 0100 as the volume or mass of fluid flowing in unit time, and the unit is l/min in the SI unit system. if the flow rates at two locations are Q1 and Q2 and their pressures are P1 and P2, the relationship is as follows.
Q1: Q2 = √P1: √P2
In other words, the higher the pressure, the higher the flow rate. Therefore, the required flow rate can be predicted in advance according to the intended use, and the number of air nozzles and tip shape can be selected based on that prediction. Note, however, that the above formula does not take into account the compressibility or viscosity of air.
If you want to be even more particular in selecting an Air Nozzle, aim to minimize the flow rate used by the Air Nozzle. Compressed air is not inexpensive and has a large electrical cost. Using a structure that has as little loss as possible in the Air Nozzle can save on the flow rate used.
Figure 3. Cost of compressed air
In addition, noise is reduced by decreasing losses due to turbulence. By closely checking the performance of the Air Nozzles offered by various companies while satisfying the required striking force and flow rate, the best nozzle can be selected.
*Including some distributors, etc.
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EXAIR was incorporated in 1983 and based in the suburbs of Cincinnati, Ohio. EXAIR is a manufacturer of compressed air-operated products to solve problems in industrial plants. Customer solutions EXAIR addresses include cooling, cleaning, coating, conveying, drying, industrial housekeeping, static elimination, and optimization. EXAIR products include vortex tubes, air amplifiers, air knives, air-operated vacuums, ionizing products, air wipes, static eliminators, vacuum generators, vortex tubes, cabinet coolers for standard and hazardous location, cold gun air coolant systems, and other accessories.
Hy-Grade Metal Products Corp., founded in 1918 and is headquartered in Syracuse, New York, is a manufacturer and supplier of precision metal components. The company's custom products, includes metal spun parts, water jet cut parts, and ASME air flow nozzles, catering to industries such as HVAC, ecclesiastical, restaurant, and home decor. They make quality, and precision products, serving diverse industrial applications where these components are essential for efficient operations and performance.
Helander, established in Lombard, IL in 1936, is a manufacturer of CNC Machines as well as supplier of metal forming and fabricating services. Their product portfolio includes CNC Machines for milling and turning, stainless steel, carbon steel, aluminum and Inconel, used in industries such as HVAC for filtration & separation, medical for laboratory equipment, and vehicle components. The company also offers services that include customer support, quality control and customized services.
INPRO Technologies was founded in 1987 and is headquartered in Frederick, Maryland. The company is a manufacturer of automation and robotic machinery to market segments including medical devices, automotive, electronics, plastics, and coating of wood and laminate flooring. The company provides process technologies including UV curing and control, web cleaning, plasma treatment, surface cleaning, and electrostatic charging. The company’s services include system integration, consulting, diagnostics, repair, and robotics & automation integration.
Vortec, was established in 1961, is a manufacturing company providing expertly designed compressed air solutions that improve efficiency and increase productivity based in the United States. The company became the first company to develop technology for converting the vortex tube phenomenon into practical, effective industrial cooling solutions. It has been continued to refine and expand vortex tube applications, as well as develop air amplification products for more efficient use of compressed air in cleaning and conveying applications. In 1990, it was purchased by Illinois Tool Works; and is now part of the ITW Air Management business unit.
Spraying Systems Co., established in 1937 and headquartered in Wheaton, Illinois, USA, is a manufacturer of spray nozzles and systems. Its product range encompasses hydraulic spray nozzles, air atomizing nozzles, tank cleaning equipment, spray guns, and automated spray systems. These products find applications across more than 200 industries, serving functions such as cleaning, coating, cooling, drying, and lubricating. The company has garnered certifications for quality and sustainability, including ISO 9001:2008, ISO 14001:2004, and compliance with the ASME Boiler and Pressure Vessel Code.
DropsA S.p.A., headquartered in Milan, Italy, has been a centralized lubrication system manufacturer since 1946. The company offers a range of products, including automatic and manual pumps, dual-line and progressive dividers, control devices, and auxiliary components. These products are designed for various types of lubrication, such as grease, oil, and air/oil, aimed at improving the efficiency of various industrial production systems while reducing maintenance costs. These are utilized across diverse industries, including mining, construction, railways, textiles, and energy.
CKD Corporation, established in 1943 under the name of Japan Aircraft Electric Co., Ltd., is a Japanese manufacturer of automation machinery and manufacturing components, headquartered in Komaki, Aichi. Their diverse portfolio includes pneumatic and fluid control components, fine system components, drive components, and labor-saving components. The company has also developed various types of automation machinery, such as transparent object inspection systems, pharmaceutical products packaging machines, and more. These products find applications in various industries, for example their automated food packaging systems are designed for maintaining food quality and hygienic conditions. Their fluid control components are used in the solar cell manufacturing process.
H.IKEUCHI & Co.,Ltd., founded in 1954 and headquartered in Osaka, Japan, is a manufacturer and supplier specializing in spray nozzles, humidifiers, and related equipment. The company’s product portfolio includes humidifiers, air nozzles, hydraulic spray nozzles, pneumatic spray nozzles, and industrial-use pneumatic humidification systems. These products are utilized by various sectors, including livestock farming, greenhouse agriculture, food processing, textiles, and shipping and maritime. The company is ISO 9001:2015 certified and has offices in the USA, China, Taiwan, Indonesia, and the Netherlands to support its global network.
Simco-Ion Europe, founded in 1966 and headquartered in the Netherlands, is a manufacturer specializing in equipment for the elimination of static electricity. The company offers a comprehensive range of products, including static elimination tools, static charging equipment, high-voltage generators, and solutions for web and particle cleaning applications across various industries. It is a member of the worldwide ITW group, and the company delivers its complete static control solutions in Europe, the Middle East, and Africa.
Krautzberger, founded in 1902 and headquartered in Eltville am Rhein, Germany, is a manufacturer and supplier of surface technology products. The company develops surface coating products for various industries including automotive, textiles, pharmaceuticals, ceramics and cosmetics. Its product range includes spray guns, material pressure regulators, material feed containers, pumps and various coating systems like paint supply systems, steam technology, automatic surface spraying machine and painting robot. It allows its products to be tested in its technical center before buying. The company's certifications include ATEX and quality management and environmental management certification from ISO.
MARTIGNONI ELETTROTECNICA SRL was established in 1970 and is a manufacturer and supplier of corona treaters, antistatic systems, and electric transformers based in Vanzaghello, Milano, Italy. The company manufactures various products such as extruflex hp150, flammatore 3D, and charge generators. The products have been used in various application, including the installation of corona treater for extrusion coating lines and blown extrusion lines in factories. The company has participated in Labelexpo Europe 2023 with the company's own stand to present the products.
XHnotion Pneumatic, founded in 2007 and based in Ningbo, China, is a manufacturer and supplier of pneumatic power products. The company is certified to ISO 9001:2015 and has a CE, ROHS, and REACH certificate for the international market. The company’s customers include Johndeere, Univer, Sulzer, MEIDEN, Metalworks, and Wurth. It offers pneumatic fittings, air hoses, solenoid valves, air guns, and coupling products. The company’s pneumatic fittings include plastic pneumatic fittings, metal pneumatic fittings, mufflers, and push-button couplers.
Fraser Anti-Static Techniques Ltd is a ISO 9001-certified manufacturer and supplier of electrostatic equipment founded in 1991 and headquartered in Devon, UK. The company provides static control and generation solutions to various industries, such as automotive, plastics,converting, printing, and textiles. Its product portfolio includes anti-static bars, static eliminators and ionizers, grounding systems, static generators, as well as static testing and measuring equipment. These products are certified to CE, UL, ATEX, IECEx, ISO international quality standards.
AutomationDirect.com was founded in 1994 to provide solutions for the industrial automation market and has been growing its list of offerings ever since. AutomationDirects’ extensive catalog includes individual components such as cables, various controls, I/O devices, relays, gauges, fittings, and sensors to complete systems. Many parts and devices, especially PLC units are customizable. AutomationDirect.com also provides support via video instructions, online manuals, a learning library, an active community forum to further assist customers.
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