Oil-free
United OSD dry oil-free variable-speed screw compressors — Shanghai United / SUNC Compressor (Hitachi JV)
United OSD dry oil-free variable-speed screw compressors · Shanghai United / SUNC Compressor (Hitachi JV)
Datasheet
Product overview
United OSD dry oil-free variable-speed screw compressors from Shanghai United / SUNC Compressor (Hitachi JV)
United's OSD dry oil-free screw page lists 37–500 kW working power, 2–10 bar working pressure and 5.3–80 m³/min working air quantity across the family. The range limits are not one model's simultaneous delivery point. Request the pressure-matched model selection and air-delivery measurement/reference conditions.
The manufacturer describes two-stage dry compression with Hitachi air ends, rotor/casing coating, seals separating the compression chamber from lubrication and ITCS controls. The published description identifies interstage/after cooling and connections for combined compressor control. Confirm the actual cooling arrangement, motor/drive, instrumentation and control interfaces of the offered machine.
Oil-free compression is one part of a complete air-quality requirement. For food, pharmaceutical or electronics duty, specify oil, particles and water at the required measurement location, together with any process-specific microbiological requirements. Obtain the applicable certificate/test scope for the exact offered equipment and conditions, and select downstream drying, filtration and distribution accordingly. Do not infer sterile air or the entire purity specification from an oil-free description.
Include normal/peak/minimum demand, point-of-use pressure, duty schedule, ambient and cooling utilities, power supply and standby strategy. Ask for selected-duty delivery and complete package input, operating envelope, maintenance access and commissioning/spares documentation.
| Catalog reference | UNITED-OSD-OILFREE |
|---|---|
| Machine | Oil-free |
| Power | — |
| Working pressure | — |
| Published flow | — |
| Air quality | — |
| Duty | Food / pharma |
| Supply | Not specified |
| Plant | Shanghai United / SUNC Compressor (Hitachi JV) |
| Construction | OSD dry oil-free two-stage screw; manufacturer describes Hitachi air ends |
| Published working power range | 37–500 kW |
| Published working pressure range | 2–10 bar |
| Published working air-quantity range | 5.3–80 m³/min; family range, not a simultaneous selected point |
| Controls | ITCS described; offered integration and interfaces to confirm |
| Air quality | Exact oil/particle/water and process requirements; model-specific evidence and treatment scope |
Plant
Shanghai United / SUNC Compressor (Hitachi JV)
Shanghai
The plant remains the seller. This desk issues the English duty sheet so quotes are comparable across clusters.
Specification pages
Specifying a Oil-free duty
| Duty | Write on the RFQ |
|---|---|
| Compressor for a food factory | Food air is a validation file. Class, test point and treatment matter as much as kW. A general 8 bar screw without papers is not a food quote. |
| Compressor for a pharmaceutical plant | Pharma procurement is a document pack: IQ/OQ support, material certs, residual oil. The machine is the easy part if the RFQ lists the papers. |
| Class 0 oil-free compressor | Class 0 means a stated test method at a stated point in the air system. An oil-free airend without a paper is not Class 0 on this desk. |
Same type
Related Oil-free products
Compare the published product information for each manufacturer.
| 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 |
UNITED-OSD-OILFREE: Voltage and frequency matter as much as bar. State both. Include the required operating conditions with your enquiry.
Issue RFQ