The 3 types · side-by-side
Distributor-facing reading. Each row gives best-for, key trade-off, capacity, price band, and how many of SPC's tier slots carry an option at that product type.
Product type
Best for
Key trade-off
Typical capacity
Price band
Brands SPC carries
PSA Generator — Standard Plant pressure · 95% to 99.999%+ purity
The workhorse of on-site nitrogen.Laser cutting, food and beverage packaging, plastics and electronics blanketing, tire fill, heat treating, chemical and pharma process work, wineries — any application where nitrogen is consumed at standard plant pressure. The right format for the large majority of industrial demand.
Plant pressure onlyDelivers nitrogen at standard plant pressure, a few PSI below feed. Cylinder filling, aircraft servicing, and any high-PSIG application needs the high-pressure format. Available on a portable skid or trailer chassis as a packaging variant — same machine, not a separate Product Type here.
A few hundred SCFH to hundreds of SCFM
skid · cabinet · compact · portable chassis
skid · cabinet · compact · portable chassis
$$ – $$$
3 / 5 · solid
High-Pressure Generator PSA + booster + fill stand · 2,200–3,500+ PSIG
Cylinder filling and mission-critical defense work.Aircraft tire and strut servicing, military and defense maintenance, munitions handling, industrial gas-charging (accumulators, gas springs), specialty cylinder filling for distributors, hypoxic fire suppression with high-pressure cylinder reserves. The only format engineered to fill bottles.
Capital cost + safety engineeringMaterially higher capital than a standard-pressure generator — the booster, fill stand, pressure-rated piping, and safety relief set add real cost. Heavier documentation and compliance overhead, especially in defense and aviation work. Manufacturer financing often relevant.
Single cylinder to 6+ cylinders / 24 hr
deployable wheeled · stationary fill skid
deployable wheeled · stationary fill skid
$$$
1 / 5 · South-Tek only
Containerized System ISO container · generator + compressor + treatment + buffer
Remote sites and rapid-deployment installs.Oil and gas fields, mining, remote chemical plants, modular pharma and food facilities, expansion projects with no indoor floor space, multi-year construction projects, defense forward operating bases, multi-site corporate standardization, paired Enclosed Air Systems deployments. Plug-and-play in days, not months.
Site services + remote-service economicsCustomer is responsible for pad, power (voltage + phase confirmed), ambient HVAC if outside the equipment's operating envelope, and the nitrogen-line piping out to the point of use. Service trips to remote sites cost more, which pushes the economics toward bundled annual service contracts and on-site spare-parts stocking.
Same envelope as standard format
nitrogen · compressed-air · paired configurations
nitrogen · compressed-air · paired configurations
$$$
1 / 5 · South-Tek + build partner
Reading the brand bench column — the bar shows how many of SPC's tier slots (Industry Leader · Emerging · Economical · adjacent) carry an option at that product type. A deep bench means a price-driven and a spec-driven option both close cleanly; a narrow bench means the available brands map closely to the technical requirements and the comparison stops being a tier choice. Nitrogen generation runs narrow by design — South-Tek anchors every format, with Ozen Air and Great Lakes Air as second-tier alternates only on the standard-pressure format.