PSA Nitrogen Generator for Cheap N2 Gas

Source: https://achievement.co.za/psa-nitrogen-generator-for-cheap-n2-gas

• published: 2024-08-23 11:35:59
• modified: 2024-08-30 00:41:57
• excerpt: https://nitrogengenerator.co.za/ NitrogenGenerator.co.za provides reliable PSA nitrogen generators, offering a cost-effective solution for producing nitrogen gas. These generators are ideal for applications such as welding, cutting, and tire inflation. Ensure consistent and pure nitrogen supply with these high-performance generators.

What this page is

This is the "PSA Nitrogen Generator for Cheap N2 Gas" post on achievement.co.za, one of AM.CO.ZA's company sites. It points to nitrogengenerator.co.za, which shows AM.CO.ZA's NitroMaker PSA nitrogen generators.

Original text (as published): "NitrogenGenerator.co.za provides reliable PSA nitrogen generators, offering a cost-effective solution for producing nitrogen gas. These generators are ideal for applications such as welding, cutting, and tire inflation. Ensure consistent and pure nitrogen supply with these high-performance generators."

This Knowledge Base version expands that into a plain guide to making your own nitrogen instead of buying it in cylinders. Every point below comes from nitrogengenerator.co.za, NitroMaker, Buythis and AM.CO.ZA pages already in this KB, which are linked so you can read the full wording. The sister post NitroMaker Nitrogen Generator covers the NitroMaker range in more detail.

How a PSA nitrogen generator works

Air is mostly nitrogen. A PSA (pressure swing adsorption) generator pushes clean, dry compressed air through a material that holds back oxygen, so nitrogen comes out the other side. The pressure then swings low to release the trapped oxygen, and the cycle repeats. The result is a continuous, on-demand nitrogen supply from ordinary compressed air, with no cylinder deliveries.

AM.CO.ZA's NitroMaker generators deliver nitrogen at about 7 bar. The Buythis product titles give 99.99% purity and the nitrogengenerator.co.za site says up to 99.999%.

Why it makes nitrogen cheap

• No cylinder rental or deliveries. Once installed, the generator only needs electricity and compressed air, and you never wait for a refill.
• Low running power. The generator-only units draw about 50 W to 75 W on 220 V. Most of the energy goes into the air compressor, which many workshops already run.
• Always on hand. Nitrogen is made as you use it, so production doesn't stop when a cylinder runs out halfway through a job.
• Low maintenance. nitrogengenerator.co.za lists easy installation, low maintenance and energy-efficient operation among the benefits.

What people use it for

• Hand-held fibre laser welding. Nitrogen shields the weld from oxygen, giving cleaner, stronger welds with less discolouring. This is the most common use for a small generator.
• CO2 laser cutting. A nitrogen shield cuts down smoke, flames and burn marks on supawood (MDF board), fabric and leather.
• Fibre laser cleaning. Clean results on metal without oxidation.
• Tyre inflation. Nitrogen-filled tyres keep their pressure more steadily.

The site also mentions electronics manufacturing and food packaging as places where pure nitrogen matters.

Choosing a size

The NitroMaker spec table matches output to hand-held laser welders, about one welder for each m³ of nitrogen per hour:

• N2-PSA/1: 1 m³/h, one welder.
• N2-PSA/2: 2 m³/h, two welders.
• N2-PSA/3: 3 m³/h, three welders.
• N2-PSA/4: 4 m³/h, four welders.
• N2-PSA/5: 5 m³/h, five welders.
• N2-PSA/AIR/2: 2 m³/h with its own compressor and dryer built in, for workshops without a suitable compressor. It draws about 3.6 kW on 220 V.

The generator-only units weigh from about 128 kg (2 m³/h) up to about 285 kg (5 m³/h), so plan floor space and how you will move them in. Current prices are on each Buythis product page; this page carries no prices.

Compressed air comes first

A generator-only unit needs cold, dry, clean compressed air going in, at about 6.5 to 8 bar (0.65 to 0.8 MPa). Wet or oily air shortens the life of the generator and lowers purity. AM.CO.ZA pairs NitroMaker with its 16 bar rotary screw compressors with a built-in dryer and filters, such as AG-AIR/SCREW-15 (KB page) and AG-AIR/SCREW-22 (KB page). If you have no compressor, the all-in-one N2-PSA/AIR/2 avoids buying one.

Where a small generator is not enough

High-power fibre laser cutting with nitrogen as the cutting gas uses a lot of gas at high pressure. According to AM.CO.ZA's 12 kW fibre laser cutting gas notes, a nitrogen cylinder lasts only about 15 minutes in that use, and a generator system that can feed it (15 bar, 22 bar or higher, with a booster and storage) is a large custom project rather than a stocked package. For that kind of cutting, most shops use compressed air from a screw compressor, oxygen from cylinders, or bulk liquid nitrogen. The small NitroMaker units are aimed at welding, shield gas, cleaning and tyres.

Setup tips

• On a CO2 laser the nitrogen line goes to the machine's air regulator. The machinery.support team showed this on a truCUT 1300x900 install in Kempton Park (CO2 laser install using nitrogen).
• Some burning is normal when laser cutting pressed board. The answer is better airflow (not over 4 bar) or a nitrogen shield, not just a bigger air pump (laser burn, airflow and nitrogen).
• Quick range facts are in NitroMaker N2-PSA nitrogen generators.

Machines it pairs with

• RAYCUT fibre lasers
• truCUT CO2 laser cutters
• RustOff fibre laser cleaning systems
• LaserMaster Versatile 3-in-1 fibre laser systems for hand-held welding, cleaning and cutting

Where to see one

nitrogengenerator.co.za says AM.CO.ZA's Sunnyrock, Ekurhuleni warehouse in Gauteng has sales, support, training and a nitrogen demo centre, with a branch in Montague Gardens, Cape Town.

Videos

• 16 bar air compressor and nitrogen generator connection, usage and maintenance (2025-06-10)
• LaserMaster Versatile laser welding on stainless steel with nitrogen shield gas (2025-02-10)
• Install CO2 laser cutter with nitrogen generator to reduce cutting smoke on supawood (2022-09-25)

Where to go next

• nitrogengenerator.co.za site page for the full spec table and use cases.
• nitromaker.co.za site page for the NitroMaker brand page.
• NitroMaker Nitrogen Generator for the sister post on achievement.co.za.
• Air pumps and compressors on Buythis for compressors to feed a generator.
• nitromaker.co.za shop catalog for the cross-listing shop.
• nitrogengenerator.co.za for the brand site.