Oil-free
Single-stage low-pressure oil-free screw · S55A/XR reference — Xinran
Single-stage low-pressure oil-free screw · S55A/XR reference · Xinran
Datasheet
Product overview
Power: 55 kW · S55A/XR reference · Pressure: 0.4 MPa maximum working · table row · Flow: 13.5 m³/min · confirm reference conditions
Xinran presents this line as single-stage low-pressure oil-free screw equipment for process air. Its product description identifies XRA air-cooled and XRW water-cooled arrangements. The S55A/XR table reference lists 55 kW power, 13.5 m³/min flow and 0.4 MPa maximum working pressure. The same row gives an 1800 × 1360 × 1670 mm L × W × H outline and 1670 kg weight.
Use that row as a matched reference, rather than combining its capacity with the wider pressure range in the family heading. Specify the pressure needed at the process connection, allowable variation, minimum and normal flow and the conditions used to express that flow. Obtain a selection sheet for the exact operating point and cooling configuration. The displayed family photograph is marked XR-22, so it is not evidence of the S55A/XR casing or dimensions.
Applications named by Xinran include bulk-material transport, fermentation, air separation, water treatment, mixing, ventilation and drying or cooling. For conveying, describe the material, transfer arrangement and demand cycle; for continuous processes, state the required availability and how air demand varies. These inputs help establish whether the low-pressure route fits the process instead of selecting a conventional high-pressure plant-air unit by motor power alone.
Agree outlet air quality, treatment and the point at which it will be checked. Oil-free compression does not independently establish dryness, cleanliness or a process-specific certification for the entire installation. Confirm cooling-water or ventilation requirements, drain and service access, electrical supply, control arrangement and package input power. Keep the selected model, cooling suffix, performance basis and supply boundary together on the quote, drawing and acceptance procedure.
| Catalog reference | XINRAN-OILFREE-LP |
|---|---|
| Machine | Oil-free |
| Power | 55 kW · S55A/XR reference |
| Working pressure | 0.4 MPa maximum working · table row |
| Published flow | 13.5 m³/min · confirm reference conditions |
| Air quality | — |
| Duty | Food / pharma |
| Supply | Not specified |
| Plant | Xinran |
| Reference model | S55A/XR |
| Technology | Single-stage low-pressure oil-free screw |
| Power | 55 kW |
| Published flow | 13.5 m³/min |
| Table maximum working pressure | 0.4 MPa |
| Outline L × W × H | 1800 × 1360 × 1670 mm |
| Weight | 1670 kg |
| Family cooling arrangements | XRA air-cooled / XRW water-cooled |
| Selection | Confirm chosen cooling version, air-quality boundary and pressure-specific performance |
| Photograph | Official family illustration marked XR-22; not the S55A/XR reference |
Plant
Xinran
Shanghai
The plant remains the seller. This desk issues the English duty sheet so quotes are comparable across clusters.
- XINRAN-TWOSTAGE · 15 kW · XR-15SY reference
- XINRAN-MAGLEV · Engineered duty · obtain package input power
- XINRAN-H2 · 25 kN frame reference · 22 kW maximum motor
Specification pages
Specifying a Oil-free duty
| Duty | Write on the RFQ |
|---|---|
| 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. |
| 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. |
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 |
Product information
Information reviewed 2026-10-08. Specifications apply only to the models and conditions stated.
XINRAN-OILFREE-LP: Voltage and frequency matter as much as bar. State both. Include the required operating conditions with your enquiry.
Issue RFQ