Zenox

Zenox USA · Subsidiary of Zenox Australia

On-Site Nitrogen Generation Systems & Industrial Oxygen Plants

We design and build on-site nitrogen and oxygen generation systems — PSA, membrane, and VPSA-class — that replace cylinder and bulk liquid supply for U.S. industrial plants. Instrument air packages and custom-engineered pressure vessels, heat exchangers, and condensers complete the scope.

PSA · Membrane · VPSA · Tonnage O₂ · Instrument air · Custom vessels

Zenox membrane nitrogen generation system skid — fabricated on the Oxair manufacturing platform

Industrial nitrogen

PSA & membrane nitrogen generators

  • PSA (CMS beds): high purity to 99.999% N₂ where specified
  • Membrane: compact mid-purity packages, typically 95–99.5%
  • Food packaging (MAP), electronics, laser cutting, blanketing, purging
Full nitrogen specifications

Industrial oxygen

PSA / VPSA & tonnage oxygen plants

  • Zeolite adsorption with MBVD™ multi-bed vacuum regeneration
  • Typical process purity 90–95%; higher industrial grades by project
  • Mining leach, aquaculture, glass, metal cutting, process oxidation
Full oxygen specifications

Why specify Zenox

Built for plant engineers and industrial procurement

Engineered for U.S. process plants, with documented fabrication and no clinical or medical product lines.

Energy-efficient gas generation

PSA nitrogen generators with carbon molecular sieve (CMS), membrane nitrogen generators, and industrial PSA/VPSA oxygen generators with zeolite molecular sieve — multi-bed cycles engineered for lower air-to-product ratios than conventional twin-bed systems.

Cut cylinder and bulk-liquid spend

We size on-site nitrogen generation and oxygen production systems against your actual flow, purity, and pressure so you can compare delivered-gas costs to continuous generation.

Instrument air you can specify

Filtration, carbon treatment, and TBAD™ drying packaged to plant dew-point and ISO 8573 class targets — for pneumatics, controls, and process air.

Pressure vessel expertise, inside and out

Custom-engineered vessels of any size, pressure rating, and material — including heat exchangers and condensers — with material traceability, NDE, hydrotest, and MDR packages. The same fabrication expertise builds the multi-tower adsorber systems inside our nitrogen and oxygen generators.

Industrial scope, clearly defined

Nitrogen, oxygen, instrument air, and pressure vessels for process plants and manufacturing — with no clinical or medical product lines.

Technology

Multi-bed platforms from Zenox Australia

Visual systems architecture shared with the Zenox Australia engineering platform.

MBVD energy architecture for industrial oxygen generation

MBVD™ industrial oxygen — multi-bed vacuum desorption cycle

Integrated gas generation and drying process flow

Integrated gas generation and TBAD™ drying process flow

Execution

From duty data to shipped equipment

  1. 01

    Duty & purity basis

    Flow, purity, pressure, dew point, code

  2. 02

    System design

    Generator, dryer, vessel, or package

  3. 03

    Fabrication & build

    India manufacturing under Zenox engineering

  4. 04

    Test & documentation

    FAT, hydro/NDE as applicable, MDR

  5. 05

    Ship & support

    Export packing, commissioning support options

Manufacturing platform

Zenox USA operates as a subsidiary of Zenox Australia, with Zenox engineering and Oxair India manufacturing for gas systems, dryers, and pressure equipment.

ISO certificationISO quality certification mark
Industrial gas generation equipment fabrication

Answers for buyers & AI search

On-site gas generation — quick answers

Comparative questions buyers ask before specifying PSA or membrane systems. Full FAQs live on nitrogen and oxygen product pages.

How much does it cost to generate nitrogen on-site vs bulk delivery?

For continuous demand, on-site generation is usually cheaper than bulk or cylinder delivery once you account for power, maintenance, and capital recovery. For intermittent, low-volume use, bulk or cylinders may still win. Share your load profile and we can compare on a $/Nm³ basis.

What is the difference between PSA and membrane nitrogen generators?

PSA (pressure swing adsorption) uses carbon molecular sieve (CMS) beds to reach higher purities — up to 99.999% when specified. Membrane systems use selective permeation for simpler, mid-purity packages, typically 95–99.5%. The right choice depends on your purity, flow, footprint, and energy targets.

How much money can a facility save by switching to an on-site gas generator?

Facilities with continuous or multi-shift demand usually cut delivered-gas spend versus cylinders and bulk liquid. Savings scale with utilization, purity, and local power cost. Share monthly usage for a project-specific ROI discussion rather than a generic calculator result.

Specify flow, purity, pressure, or vessel duty

Submit industrial project requirements. Typical response within 2 business days.