Corona-discharge ozone generation
All our industrial and commercial ozone generators use corona-discharge (CD) technology. A high-voltage alternating current is applied across a dielectric medium with a small gap, through which a dry oxygen-rich gas flows. The corona splits O₂ molecules and recombines them as O₃ at concentrations of typically 8–14% by weight when oxygen-fed, or 1–3% when air-fed. Corona-discharge is the only mature, high-output ozone generation technology suitable for industrial use — UV ozone generation is fine for very small (gram-per-hour) applications, but cannot produce the concentrations or volumes needed for commercial water treatment. Our generators use medium-frequency (~1 kHz) inverter drives for tight output control between 1% and 100%, allowing precise ozone dosing to match changing demand.
Generator range and capacities
Our standard range covers 10 g/hr to 5 kg/hr ozone output. Small generators (10–50 g/hr) are typically used in small bottled-water plants, mid-size aquaculture systems, winery barrel sanitation programmes and laboratory R&D. Medium generators (50 g/hr – 1 kg/hr) suit larger water-treatment installations, municipal-scale potable water plants for smaller communities, dairy and food processing CIP systems, and cooling-tower disinfection. Large generators (1–5 kg/hr) are deployed for major municipal drinking-water plants, industrial wastewater treatment, RAS aquaculture and large bottled-water facilities. For applications above 5 kg/hr we deliver multi-generator skid systems with intelligent load sharing. Every generator is paired with the correct feed-gas source (oxygen concentrator, PSA system or liquid O₂).
Built for New Zealand conditions
Coastal NZ installations demand corrosion-resistant construction — our cabinets are powder-coated stainless steel as standard, with full IP-rated enclosures available. All ozone-wetted internals are 316L stainless, PVDF, PTFE or ozone-grade Viton. Generators are rated for the New Zealand grid (230 V single-phase or 400 V three-phase, 50 Hz) and certified to AS/NZS 3000 electrical standards. Cooling is closed-circuit water (with optional chiller) or air, depending on capacity. Seismic restraint and earthquake-rated mounting designs are available for high-risk zones. All control panels are touchscreen HMI with full SCADA-ready Modbus or Ethernet/IP communications. Data logging is built in to every panel for regulatory and operational reporting.
Where our ozone generators are operating
Our generators are installed in hundreds of New Zealand sites and across the Pacific. Reference installations include Coca-Cola Amatil's PUMP bottled-water plant, NZ Quality Water filler upgrade, Timaru District Council municipal supply, Whanganui District Council drinking water, Waitaki District Council, multiple Fonterra processing sites, Indevin and Craggy Range wineries, DB Breweries, United Fisheries seafood processing, and Reef HQ's marine life-support system. We also export and have systems running in Australia, the Pacific Islands, Kazakhstan and Antarctica. Every installation includes commissioning by our engineers, on-site operator training, full as-built documentation and an ongoing service relationship.
Service, spares and warranty
Every generator carries a 24-month warranty on workmanship and 12 months on dielectric tubes, with extended warranty options available. We stock all critical spares (dielectrics, gaskets, valves, transformers, controllers) at our Napier workshop. Scheduled service is typically annual: dielectric inspection, gas-side desiccant or PSA molecular-sieve replacement, dissolved-O₃ probe calibration, leak testing and electrical safety check. Most service tasks can be completed on site within a single day. For mission-critical installations we offer fully remote monitoring — our engineers can see your generator's run-state, fault history and performance trends in real time, often diagnosing issues before they become outages.
