Oil-free

Single-stage low-pressure oil-free screw · S55A/XR reference — Xinran

Single-stage low-pressure oil-free screw · S55A/XR reference · Xinran

Single-stage low-pressure oil-free screw · S55A/XR reference — official catalog illustration
Single-stage low-pressure oil-free screw · S55A/XR reference — manufacturer catalog illustration

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 referenceXINRAN-OILFREE-LP
MachineOil-free
Power55 kW · S55A/XR reference
Working pressure0.4 MPa maximum working · table row
Published flow13.5 m³/min · confirm reference conditions
Air quality—
DutyFood / pharma
SupplyNot specified
PlantXinran
Reference modelS55A/XR
TechnologySingle-stage low-pressure oil-free screw
Power55 kW
Published flow13.5 m³/min
Table maximum working pressure0.4 MPa
Outline L × W × H1800 × 1360 × 1670 mm
Weight1670 kg
Family cooling arrangementsXRA air-cooled / XRW water-cooled
SelectionConfirm chosen cooling version, air-quality boundary and pressure-specific performance
PhotographOfficial 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.

Specification pages

Specifying a Oil-free duty

All spec pages
DutyWrite 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.

Full Oil-free list
Catalog ref.TypePowerPressureFlowAir qualityPlant
FEIHE-FHOGDWY Feihe water-lubricated oil-free screw — WY / PM / WYH selections 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-CMPV CMN CM/PV water-lubricated PM VSD screw — cooling variants 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-SEMI Hengda ZW, VW and double-machine low-pressure semi-oil-free series HENGDA-LP-SEMIHengda ZW, VW and double-machine low-pressure semi-oil-free series Oil-free — — — — Hengda RFQ
HITACHI-DSP-NEXT2 Hitachi DSP NEXT II — 90A and 110W catalogue examples 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-OILFREE HD-DSPM dry screw and Hande oil-free equipment 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-SCREW AOF / AOFM dry oil-free screw compressors 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