Can an oil-injected plant quote oil-free?
Only if they actually build that airend. We match on published oil-free series, not on a trading-company catalogue.
Technology
Oil-free screw compressor manufacturers in China
Oil-free screw is a different factory from oil-injected screw. Dry airends and water-lubricated airends are also different quotes. Name the architecture.
What belongs on the RFQ
Same sheet, matching plants
Chinese plants build dry oil-free screw and water-lubricated oil-free screw. Mixing them in one RFQ produces prices you cannot compare. Say which architecture the validation file allows.
ISO 8573-1 class, dryer and sterile housing belong on the same sheet as kW and bar. A food plant that only writes “oil-free China” will get an industrial dry screw without the paper trail.
Rows below are published oil-free series. Missing Class 0 reports are not invented.
- Dry screw or water-lubricated
- ISO 8573-1 class and test point
- Working pressure and FAD or kW
- Dryer / filter train
- Voltage / frequency
- Incoterm
Matching plants
Match pool — published rows only
The plant remains the seller. Quotes are comparable because the RFQ is the same sheet.
| Plant | Cluster | Specialty | Documents | Export |
|---|---|---|---|---|
Hitachi IEC
Nanjing Jiangning
|
Nanjing | Historical air-compressor manufacturing; Hitachi DSP NEXT II and SDS-U catalogue references with offer-specific production identity |
|
Export ready |
CMN
Taizhou Bay New Area
|
Taizhou | Water-lubricated CM/PV and medium-pressure CM/GPV screw; direct-drive CMW scroll |
|
Export ready |
Feihe
Shanghai Baoshan
|
Shanghai | Water-lubricated oil-free screw · FHOGY diesel portable and FHLY centrifugal air packages |
|
Export ready |
Hitachi Sullair
Suzhou Industrial Park
|
Suzhou | Sullair stationary oil-flooded screw · DS dry oil-free screw and diesel portable air |
|
Export ready |
Guangdong Ecoair
Foshan Sanshui
|
Foshan | PM variable-speed · Two-stage and oil-free screw compressors |
|
Export ready |
B&D
Foshan Sanshui
|
Foshan | PM VSD screw · Low-pressure PM VSD · Laser-cutting packages |
|
Export ready |
Zhigao
Quzhou
|
Quzhou | Electric screw compressors · Oil-free two-stage compressors · Rock-drilling equipment |
|
Export ready |
Kobelco
Shanghai
|
Shanghai | KOBELION oil-injected screw and Emeraude oil-free compressed-air systems |
|
Export ready |
Crownwell
Shanghai
|
Shanghai | CWD oil-injected screw; CW OF oil-free screw; CW/CWH diesel portable compressors; air treatment |
|
Export ready |
AirHorse
Zengcheng
|
Guangzhou | Oil-injected screw · Oil-free · Blowers |
|
Export ready |
Zhongshan AE Machinery
Zhongshan
|
Zhongshan | PM VSD screw · Oil-free screw · Process gas |
|
Export ready |
Ganey
Shunde
|
Foshan | OG single-screw · OX oil-free scroll · OGW water-lubricated oil-free single-screw |
|
Export ready |
Published series
Catalog rows — not invented SKUs
Where a factory published a series, it is listed. Empty kW / FAD cells are confirm-on-RFQ.
| Catalog ref. | Type | Power | Pressure | Flow | Air quality | Plant | |
|---|---|---|---|---|---|---|---|
 FEIHE-FHOGDWYFeihe water-lubricated oil-free screw — WY / PM / WYH selections
|
Oil-free | Selected PM8F / PM22F: 7.5 / 22 kW | PM examples 0.8 MPa; WYH separately | PM22F 1.1–3.7 m³/min at 0.8 MPa | — | Feihe | RFQ |
 CMN-CMPVCMN CM/PV water-lubricated PM VSD screw — cooling variants
|
Oil-free | Selected CM22PV:22 kW; table examples7.5–315 kW | CM22PV rows:0.8 / 1.0 / 1.25 MPa | CM22PV:1.40–3.50 m³/min at0.8 MPa | — | CMN | RFQ |
 HENGDA-LP-SEMIHengda ZW, VW and double-machine low-pressure semi-oil-free series
|
Oil-free | — | — | — | — | Hengda | RFQ |
 HITACHI-DSP-NEXT2Hitachi DSP NEXT II — 90A and 110W catalogue examples
|
Oil-free | 90A: 90 kW; 110W: 110 kW motor | 0.75 / 0.86 / 1.0 MPaG | 90A: 16.4 / 13.9 / 13.4 m³/min | — | Hitachi IEC | RFQ |
 HANDE-OILFREEHD-DSPM dry screw and Hande oil-free equipment
|
Oil-free | 90 kW · HD-DSPM90 example | 0.8 MPa (8 bar) · HD-DSPM90 | 14.9 m³/min · HD-DSPM90 | — | Hande | RFQ |
 AE-OILFREE-SCREWAOF / AOFM dry oil-free screw compressors
|
Oil-free | 55 kW · AOF55 / AOFM55 examples | — | Delivery at agreed pressure / reference basis | — | Zhongshan AE Machinery | RFQ |
 AIRHORSE-OILFREEAirHorse oil-free screw compressor systems
|
Oil-free | 10–420 HP · published family range | Selected oil-free model / pressure duty | Pressure-matched delivery and test basis | — | AirHorse | RFQ |
 CROWNWELL-OILFREECrownwell CW OF oil-free screw variants
|
Oil-free | 22 kW · selected CW22 variants | 7 / 8 / 10 bar(g); LP at 4 bar(g) | 7 bar(g): OF 3.7; VSD 2.2–3.7; PM 0.6–3.7 | — | Crownwell | RFQ |
 UNITED-OSD-OILFREEUnited OSD dry oil-free variable-speed screw compressors
|
Oil-free | — | — | — | — | Shanghai United | RFQ |
 XINDA-WGPSXinda AUGUST WG(P)S water-lubricated oil-free screw selection
|
Oil-free | — | — | — | — | Ningbo Xinda Screw Compressor | RFQ |
 KOBELCO-EMERAUDEEmeraude ALE IV oil-free screw compressors, 55–120 kW
|
Oil-free | 55–120 kW · ALE IV reviewed range | 0.86 MPa max · selected 75 kW rows | 75 kW IPM: 11.8 air / 13.6 water m³/min · source rows | — | Kobelco | RFQ |
| ZHIGAO-DRY-OILFREEZhigao AS / AS·V oil-free two-stage compressor families | Oil-free two-stage | Select AS / AS·V model | 8 / 10 bar · family headings | Select pressure-qualified model delivery | — | Zhigao | RFQ |
FAQ
Oil-free screw compressor manufacturers in China — buyer questions
Oil-free screw compressor manufacturers in China: Voltage and frequency matter as much as bar. Typical first reply: 1–2 working days after the plant confirms it can hold the duty.
Issue RFQ