OASC rotary screw series — integrated air-cooled aftercooler
Coverage No standalone or specialty aftercooler variant — the aftercooler is integral to every OASC rotary screw configuration: OASC (belt-drive fixed speed), OASC U (direct-coupled fixed speed), OASC D (direct-drive VSD), and OASC TD (all-in-one compressor-dryer-filter-tank). Cooling is air-cooled across the entire OASC range — the Ozen technical datasheets describe only an air-cooled package ("RCD" Radial Cooling Design / "SCS" Symmetrical Cooling System: oversized radiator block plus fan, rated 32–115 °F ambient). No water-cooled aftercooler option appears on any Ozen OASC datasheet; a water-cooled configuration is not a published option and would require a factory build-to-order confirmation.
On Ozen Air's OASC rotary screw compressors the aftercooler is a factory-integrated stage of the compressor package, not a separately ordered device. Hot air leaving the screw element passes through an air-cooled (fan-driven) heat exchanger inside the enclosure before discharge, dropping the air toward ambient and condensing out the bulk of its water vapor ahead of the receiver and dryer. Because Ozen Air also offers the OASC TD all-in-one configuration — compressor, dryer, filter, and tank on one frame — the aftercooler, drain point, and downstream treatment are matched and packaged together by the manufacturer. The OASC-T/Td integrated package is rated for 140 °F max inlet temperature into the downstream dryer at max flow. Exact aftercooler approach temperature and compressed-air discharge-temperature figures are model-specific and are not stated on any Ozen Air datasheet currently on file. [VERIFY] aftercooler approach/discharge temperature — not published on the OASC product page or on the OASC/OASC-T/Td/OABC-D technical datasheets; obtain direct from Ozen Air engineering.
Why Ozen Air here Ozen Air's value is the matched package: on the OASC range the aftercooler is engineered and warranted as part of the compressor, so the cooling stage is correctly sized to the compressor's full-load CFM and discharge temperature with no separate sizing exercise. The OASC TD all-in-one takes that further — compressor, aftercooler, dryer, filter, and tank delivered on one frame — which gives SPC a clean single-line quote for auto service, repair, and paint-shop customers who want treated air without assembling a train of separate components.
OAMG-N2
Coverage Standard plant-pressure PSA only, 12 standard OAMG-N2 models, rated for 70–145 psig feed-air inlet pressure and 58–130 psig nitrogen outlet pressure. No high-pressure, portable, or containerized nitrogen variant in the Ozen line — those formats are South-Tek's.
Ozen Air's OAMG-N2 is a standard-format PSA nitrogen line of 12 standard models, covering roughly 50–812 SCFM of nitrogen at 95% purity and 6–100 SCFM at 99.999% purity. It uses a serial-PSA (two-stage) cycle and ships with an integrated desiccant dryer that regenerates on the generator's own purge stream — feed-air drying is built into the package rather than quoted as a separate item. Feed air must be clean, dry compressed air to ISO 8573 Class 1.4.1 or better, supplied at 70–145 psig inlet pressure (reference performance rated at 116 psig, 68 °F); nitrogen leaves the generator at 58–130 psig outlet pressure — typically about 21 psi below compressor outlet pressure once filter pressure drop is accounted for. Ozen Air assembles for the North American market from its Charlotte, NC hub.
Why Ozen Air here Ozen Air is also SPC's VFD rotary-screw compressor and refrigerated-dryer brand. When a customer is already buying or quoting a full Ozen Air compressed air system, the OAMG-N2 lets the nitrogen generator come from the same manufacturer on a single capital purchase — one vendor, one quote, one point of accountability for the whole air-to-nitrogen chain. The integrated desiccant dryer also means the mandatory feed-air drying arrives inside the package.
ODRD
Coverage Standard ODRD digital cycling line rated to 230 PSIG max working pressure, 10-5,000 SCFM, +38°F dew point. High-pressure variant offered as the ODRD-P series, 580 PSI nominal and 650 PSIG max, 25-1,700 SCFM. No high-temperature variant offered — the standard ODRD already handles ambient up to 140°F. No hazardous-location variant offered.
R-134a refrigerant circuit. Digital controller with onboard dew point monitoring (Digi-Pro). The ODRD is Ozen Air's digital cycling refrigerated air dryer line, 10-5,000 SCFM, rated to 230 PSIG and ambient up to 140°F, engineered for low pressure drop across the dryer. A high-pressure variant, the ODRD-P, is offered for service to 650 PSIG.
Why Ozen Air here Ozen Air delivers a single-vendor air package — when the customer is already specifying an Ozen Air compressor, the matched dryer arrives integrated with one controller, one point of support. The ODRD's low pressure drop also keeps system pressure losses down, easing compressor set pressure.
Ozen Air OSC Series (fixed-speed); OASC belt-drive
Coverage Fixed-speed oil-injected rotary screw: OSC Series; OASC belt-drive ~5.5-30 HP stocked, direct-drive frames to lead time. CAGI-verified performance data. VFD configurations are covered by a separate product type.
Ozen Air's fixed-speed rotary screw line is the OSC Series, an oil-injected load/unload screw compressor with CAGI-verified performance data — meaning the published flow and power numbers are third-party datasheet-grade. The OASC belt-drive range covers roughly 5.5-30 HP and is held in high stock; direct-drive units typically carry a ~14-day lead time. Ozen Air's US hub is in Charlotte, NC.
Why Ozen Air here Ozen Air pairs CAGI-verified performance data — a real third-party datasheet a DC rep can show a technical buyer — with a belt-drive range held in deep stock, so 5.5-30 HP fixed-speed orders ship fast. It is a strong choice when the customer wants verified numbers and quick availability.
Ozen Air OSC-VFD Series; OASC V belt-drive VFD
Coverage Variable-speed oil-injected rotary screw: OSC-VFD Series; OASC V belt-drive VFD ~7.5-40 HP. CAGI-verified performance data. Fixed-speed Ozen Air units are covered by a separate product type.
Ozen Air's variable-speed line is the OSC-VFD Series, an oil-injected rotary screw whose airend speed tracks demand to hold constant pressure. The OASC V belt-drive VFD range covers roughly 7.5-40 HP. Ozen Air publishes CAGI-verified performance data, so the energy numbers behind a VFD payback case are third-party datasheet-grade rather than marketing figures; the brand cites VFD energy reductions on the order of 20-35%.
Why Ozen Air here Ozen Air's CAGI-verified performance data is its real advantage on a VFD sale — a payback calculation built on third-party-verified energy numbers a DC rep can put in front of an engineer. With a stocked belt-drive VFD range in the 7.5-40 HP band, it is a strong fit for a variable-demand account that wants the savings case documented.
