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Nitrogen & Oxygen Gas Generators

Since 1966, Pneumatech has provided industry-leading compressed air treatment and on-site gas generation solutions to customers across the globe. Our on-site nitrogen and oxygen generators provide you with premium, industrial gas without the cumbersome handling of bottles, cost-efficient, easy and at the purity level required by you.


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Onsite gas generation tailored to your needs

Experience top-notch on-site nitrogen and oxygen generation in New Zealand with our advanced Pneumatech N2 and O2 gas systems. Say goodbye to the hassle of handling gas bottles, enjoy cost-effective solutions, and ensure the purity levels tailored to your specific needs in the industrial sector.

Talk to our team today about nitrogen and oxygen gas generators Talk to our team today about nitrogen and oxygen gas generators

Nitrogen Generators:

 Empower your operations with the intelligent choice of producing nitrogen on-site. Opting for an on-site nitrogen generator in New Zealand is a superior, cost-efficient, and sustainable alternative to traditional gas deliveries. Switch from Liquid Nitrogen to On-Site Generation and Cut Your Operating Cost Down.

Oxygen Generators:

Experience the cutting-edge on-site oxygen generation offered by Pneumatech, a leading air treatment and gas generation expert, proudly presented by Ash Air in New Zealand. Utilizing advanced zeolite technology, our oxygen generators efficiently separate gases, ensuring purity levels of up to 95%. From compressed air applications to critical environments like veterinary clinics and medical facilities, our machines deliver unparalleled performance. Elevate your business with a dependable O2 supply, reduce costs, and enhance operational excellence through Pneumatech's expertise, products, and services. Discover the seamless synergy of cutting-edge oxygen solutions for optimal reliability and efficiency, exclusively offered by Ash Air in New Zealand.

Explore our Industrial Gases Selection

Browse our online catalogue and discover Pneumatech Nitrogen and Oxygen Generators  for sale in New Zealand. We're excited to offer only the best on the market in NZ. Get in touch today and learn why Ash Air have over 40 years in the business, with thousands of happy customers throughout the country.

Online Shop

Shop online for quality air compressors, fittings, air tools, air regulators, pressure switches, and maintenance kits for NZ businesses and DIYers. Hassle-free, secure payment with Afterpay, nationwide delivery.

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Air Compressors & Treatment

From powerful rotary screw compressors to reliable piston air compressors, we offer a comprehensive range. Explore top-quality air compressors and treatment solutions in New Zealand with Alup and Chicago Pneumatic. Enhance your compressed air system with our refrigerated and desiccant air dryers. Trust us for sales and service of premium air compressors in NZ.

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Vacuum Pumps & Blowers

The team at Ash Air has an extensive range of top quality vacuum pumps and equipment, including rotary vane pumps, liquid ring pumps, claw pumps and screw pumps that are low maintenance, energy-efficient, reliable, affordable and hard working.

Sub Categories

Nitrogen & Oxygen Gas Generators

Our nitrogen gas generators offer excellent all-in-one solutions, with technologically-advanced systems, are very convenient, space saving and easy to install. Our nitrogen generators have impressive control and monitoring capabilities with very reliable purity settings and long-lasting membrane technology.

Sub Categories

2.5HP 50L Oil-Free Dental Air Compressor Clean Air Class Zero Certified

2.5HP 50L Oil-Free Dental Air Compressor Clean Air Class Zero Certified

$3,700.00 NZD exc.
$4,255.00 NZD inc.

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1.5HP 25L Oil-Free Dental Air Compressor Clean Air Class Zero Certified

1.5HP 25L Oil-Free Dental Air Compressor Clean Air Class Zero Certified

$2,450.00 NZD exc.
$2,817.50 NZD inc.

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6.5HP 50L Cast Iron Petrol Air Compressor SF302 KOHLER

6.5HP 50L Cast Iron Petrol Air Compressor SF302 KOHLER

$1,950.00 NZD exc.
$2,242.50 NZD inc.

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3HP 100L Belt Drive Cast Iron Piston Air Compressor SF302HD

3HP 100L Belt Drive Cast Iron Piston Air Compressor SF302HD

$1,900.00 NZD exc.
$2,185.00 NZD inc.

IN STOCK

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3HP 50L Belt Drive Cast Iron Piston Air Compressor SF302HD

3HP 50L Belt Drive Cast Iron Piston Air Compressor SF302HD

$1,750.00 NZD exc.
$2,012.50 NZD inc.

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3HP 100L Belt Drive Cast Iron Piston Air Compressor 'Ironman' CPBC-3100

3HP 100L Belt Drive Cast Iron Piston Air Compressor 'Ironman' CPBC-3100

$1,434.90 NZD exc.
$1,650.14 NZD inc.

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5.5HP 30L Twin Tank Petrol Air Compressor (12.4 cfm, 10 bar) CPBA-55E

5.5HP 30L Twin Tank Petrol Air Compressor (12.4 cfm, 10 bar) CPBA-55E

$1,433.90 NZD exc.
$1,648.99 NZD inc.

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3HP 100L Belt Drive Piston Air Compressor CPBA-3100

3HP 100L Belt Drive Piston Air Compressor CPBA-3100

From $1,306.90 NZD exc.
$1,502.94 NZD inc.

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CP7769 Heavy Duty 3/4" Impact Wrench, Max Torque 1950 Nm

CP7769 Heavy Duty 3/4" Impact Wrench, Max Torque 1950 Nm

$1,095.00 NZD exc.
$1,259.25 NZD inc.

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3HP 50L Belt Drive Piston Air Compressor CPBA-350

3HP 50L Belt Drive Piston Air Compressor CPBA-350

From $1,019.90 NZD exc.
$1,172.89 NZD inc.

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2.5HP 50L Belt Drive Cast Iron Piston Air Compressor 'Ironman' CPBC-2550

2.5HP 50L Belt Drive Cast Iron Piston Air Compressor 'Ironman' CPBC-2550

$968.90 NZD exc.
$1,114.24 NZD inc.

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CP7763 3/4" Super Duty Impact Wrench, Max Torque 1,630 Nm

CP7763 3/4" Super Duty Impact Wrench, Max Torque 1,630 Nm

$948.27 NZD exc.
$1,090.51 NZD inc.

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2.5HP 50L Belt Drive Piston Air Compressor CPBA-2550

2.5HP 50L Belt Drive Piston Air Compressor CPBA-2550

From $896.90 NZD exc.
$1,031.44 NZD inc.

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CP7762 3/4" Stubby Impact Wrench, Max Torque 1420 Nm

CP7762 3/4" Stubby Impact Wrench, Max Torque 1420 Nm

$820.87 NZD exc.
$944.00 NZD inc.

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1.5HP 50L Oil-Free Air Compressor with Filter Regulator (5 CFM)

1.5HP 50L Oil-Free Air Compressor with Filter Regulator (5 CFM)

$745.00 NZD exc.
$856.75 NZD inc.

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CP7737 1/2" Angle Impact Wrench, Max Torque 300 Nm

CP7737 1/2" Angle Impact Wrench, Max Torque 300 Nm

$500.00 NZD exc.
$575.00 NZD inc.

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CP9120CR 4" Air Angle Grinder

CP9120CR 4" Air Angle Grinder

$481.80 NZD exc.
$554.07 NZD inc.

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CP9780 3/4" Heavy Duty Belt Sander

CP9780 3/4" Heavy Duty Belt Sander

$438.00 NZD exc.
$503.70 NZD inc.

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2.5HP 24L Direct Drive Piston Air Compressor CPDA-2524 (9.5 cfm)

2.5HP 24L Direct Drive Piston Air Compressor CPDA-2524 (9.5 cfm)

$435.90 NZD exc.
$501.29 NZD inc.

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Condor Pressure Switch | PN: MDR4/11

Condor Pressure Switch | PN: MDR4/11

$434.48 NZD exc.
$499.65 NZD inc.

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PIT TOOLS LU-9040H 90 Series 18 Gauge Narrow Crown Stapler

PIT TOOLS LU-9040H 90 Series 18 Gauge Narrow Crown Stapler

$414.03 NZD exc.
$476.13 NZD inc.

IN STOCK

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2.5HP 50L Direct Drive Piston Air Compressor CPDA-2550

2.5HP 50L Direct Drive Piston Air Compressor CPDA-2550

$397.90 NZD exc.
$457.59 NZD inc.

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CP9789 1/2" Heavy Duty Reversible Drill

CP9789 1/2" Heavy Duty Reversible Drill

$395.30 NZD exc.
$454.59 NZD inc.

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PIT TOOLS LU-50F Combination Brad Nailer - Narrow Crown Stapler

PIT TOOLS LU-50F Combination Brad Nailer - Narrow Crown Stapler

$390.80 NZD exc.
$449.42 NZD inc.

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Condor Pressure Switch | PN: MDR3/11 - 10

Condor Pressure Switch | PN: MDR3/11 - 10

$389.00 NZD exc.
$447.35 NZD inc.

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CP7732C 1/2" Ultra Compact Impact Wrench, Max Torque 625 Nm

CP7732C 1/2" Ultra Compact Impact Wrench, Max Torque 625 Nm

$383.25 NZD exc.
$440.74 NZD inc.

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CP7829H 1/2" Air Ratchet Wrench

CP7829H 1/2" Air Ratchet Wrench

$377.78 NZD exc.
$434.45 NZD inc.

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CP7225E Random Orbital Finishing Sander 3/32 Orbit- 6" Pad

CP7225E Random Orbital Finishing Sander 3/32 Orbit- 6" Pad

$328.50 NZD exc.
$377.77 NZD inc.

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1.5HP 6L Oil-free Piston Air Compressor CPRB 6

1.5HP 6L Oil-free Piston Air Compressor CPRB 6

$322.90 NZD exc.
$371.34 NZD inc.

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CP9427 3/8" Heavy Duty Mini Ratchet

CP9427 3/8" Heavy Duty Mini Ratchet

$284.70 NZD exc.
$327.40 NZD inc.

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CP9882 Compact Air Riveter | 1,000 kg Pulling Load | 3/16" Capacity

CP9882 Compact Air Riveter | 1,000 kg Pulling Load | 3/16" Capacity

$262.80 NZD exc.
$302.22 NZD inc.

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PVC Retractable Air Compressor Hose Reel 3/8" x 15 Metre | PN: AR-400

PVC Retractable Air Compressor Hose Reel 3/8" x 15 Metre | PN: AR-400

$254.89 NZD exc.
$293.12 NZD inc.

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PIT TOOLS LU-9032 90 Series 18 Gauge Narrow Crown Stapler

PIT TOOLS LU-9032 90 Series 18 Gauge Narrow Crown Stapler

$241.52 NZD exc.
$277.75 NZD inc.

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Saginamiya Pressure Switch Plus Nipple | PN: SP61-B

Saginamiya Pressure Switch Plus Nipple | PN: SP61-B

$190.86 NZD exc.
$219.49 NZD inc.

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PIT TOOLS LU-9725 97 Series Stapler

PIT TOOLS LU-9725 97 Series Stapler

$184.02 NZD exc.
$211.62 NZD inc.

IN STOCK

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PIT TOOLS LU-9025 90 Series 18 Gauge Narrow Crown Stapler

PIT TOOLS LU-9025 90 Series 18 Gauge Narrow Crown Stapler

$183.27 NZD exc.
$210.76 NZD inc.

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PIT Tools Deluxe Medium-Duty Gravity Spray Gun | PN: FR107

PIT Tools Deluxe Medium-Duty Gravity Spray Gun | PN: FR107

$175.20 NZD exc.
$201.48 NZD inc.

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CP886H 1/2" Standard Duty Air Ratchet

CP886H 1/2" Standard Duty Air Ratchet

$173.00 NZD exc.
$198.95 NZD inc.

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SMC Filter Regulator Blister Pack 1/2 BSP | PN: AW40-04BG-B-POS

SMC Filter Regulator Blister Pack 1/2 BSP | PN: AW40-04BG-B-POS

$170.00 NZD exc.
$195.50 NZD inc.

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EMAX AT-7009 Belt Sander 10X330mm

EMAX AT-7009 Belt Sander 10X330mm

$169.18 NZD exc.
$194.56 NZD inc.

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PIT TOOLS LU-8016AC.1 80 Series Fine Wire Stapler

PIT TOOLS LU-8016AC.1 80 Series Fine Wire Stapler

$161.01 NZD exc.
$185.16 NZD inc.

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CP7111 Air Hammer 0.401 Shank

CP7111 Air Hammer 0.401 Shank

From $156.59 NZD exc.
$180.08 NZD inc.

IN STOCK

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CP872 1/4" Die Grinder

CP872 1/4" Die Grinder

$153.30 NZD exc.
$176.29 NZD inc.

IN STOCK

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EMAX 3/8" Air Drill Gun Heavy Duty | PN: KL-304

EMAX 3/8" Air Drill Gun Heavy Duty | PN: KL-304

$153.30 NZD exc.
$176.29 NZD inc.

IN STOCK

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PIT TOOLS LNF-32 18 Gauge Brad Nailer

PIT TOOLS LNF-32 18 Gauge Brad Nailer

$149.51 NZD exc.
$171.94 NZD inc.

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YD102 - Pit Tools Spray Gun Industrial (Suction Type)

YD102 - Pit Tools Spray Gun Industrial (Suction Type)

$149.51 NZD exc.
$171.94 NZD inc.

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Heavy Duty PVC Air Compressor Hose (10MM, 30 MTR) | H1030

Heavy Duty PVC Air Compressor Hose (10MM, 30 MTR) | H1030

$137.89 NZD exc.
$158.57 NZD inc.

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PIT Tools HBFR804 1/2" BSP Inline Filter Regulator | PN: HBFR804

PIT Tools HBFR804 1/2" BSP Inline Filter Regulator | PN: HBFR804

$133.48 NZD exc.
$153.50 NZD inc.

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Our Resources

We're committed to offering our customers an extensive range of knowledge-based resources to support you at every stage of your journey. Whether you're just starting your research or making your final purchasing decision, Ash Air is here to support you. 


Contact Us Contact Us Ash Air Expert Corner Blog Ash Air Expert Corner Blog Our News and Stories Our News and Stories

Read our blog


Choosing the right assist gas in laser cutting: nitrogen or oxygen


Controlling your nitrogen purity made easy


How is Nitrogen Used in the Coffee Industry?


Our customers say...



"At Fisher & Paykel Appliances, compressed air and vacuum systems are an important part of our operations. Ash Air understands our needs and can solve our problems very swiftly. They have maintained our systems to a high standard. The service and support from Ash Air over the years has proven to be reliable, professional and genuine. They are highly skilled real people and we are happy to be working with them."

Shane Farrington Engineering Manager, Fisher & Paykel Appliances



"Ash Air has been pivotal in assisting Air New Zealand Engineering in our energy saving efforts. They provide us with constant improvement programs that include high quality equipment & service, Air Quality Testing, Leak Detection & Repairs and point of use improvements. Air New Zealand Engineering do our best in servicing large jet airframes and Ash Air has always been there to support our compressed air efficiency requirements." 
Harvey Roberts Senior Facilities Manager Property & Infrastructure, Auckland Jet Base, Air New Zealand Engineering

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