Air-cooled A
Ventilation, heat rejection, inlet/ambient conditions, access and hot-air recirculation prevention.
Shanghai Jiading
OSG Shanghai: XD and EX pressure, cooling and service selection
Compare paired duties and installation data, then define cooling, air treatment and ownership requirements.
SHANGHAI OSG / HONEST COMPRESSOR
Direct-drive selection needs a complete plant-air scope
上海欧仕格压缩机有限公司 presents screw-compressor manufacture and air-system design, user training, service and airend-overhaul capabilities. Its company page describes an early-2004 establishment and British ownership; these are manufacturer statements. Chinese and older English pages give different Jiading street addresses, so agree the actual manufacture and dispatch location in your order.
The catalogue contains distinct variable-speed, two-stage and oil-free selections. The existing XD direct-drive and EX fixed-speed direct-drive products below should be selected by their own tables and offered configurations.
XD AND EX · PRESSURE-MATCHED CATALOGUE POINTS
Compare at the same pressure, then compare the installation
XD-15A · 15 kW / 20 HP
- 0.7 MPa
- 2.50 m³/min
- 0.8 MPa
- 2.30 m³/min
- 1.0 MPa
- 2.10 m³/min
950 × 750 × 1250 mm · 450 kg
3/4-inch outlet · air-cooled A column
XD-8A’s actual motor figure is 7.5 kW / 10 HP. A model number is not its motor rating, and horsepower is not a second kW option.
XD model points and installation data →EX-22A · 22 kW / 30 HP
- 0.7 MPa
- 3.7 m³/min
- 0.8 MPa
- 3.5 m³/min
- 1.0 MPa
- 3.1 m³/min
- 1.3 MPa
- 2.6 m³/min
1380 × 850 × 1150 mm · 650 kg
1-inch outlet · fixed-speed direct drive
| Model | Capacity | Dimensions / mass | Outlet |
|---|---|---|---|
| XD-75A | 12.6 m³/min | 1900 × 1250 × 1570 mm 1900 kg | 2 inch |
| EX-75A/W | 13.2 m³/min | 2100 × 1260 × 1600 mm 1600 kg | 2 inch |
These catalogue points are not a measured specific-power or lifetime-cost comparison. Obtain complete flow reference/test conditions, actual package input and demand-cycle/control data. The dimensions are machine envelopes rather than guaranteed service-clearance footprints.
View the original XD model chart
Other OSG series: oil-free, two-stage and low-pressure tables
OSG's air-compressor catalogue lists eighteen series beyond XD and EX, including EOF, EOW, ETS/ETSV, ETZV, EZOV, ETOV and EXL. The company describes its overall range as 3–480 kW and 0.5–75 m³/min, air- and water-cooled. The tables marked “reference only” by the source give, for example:
| Series | Power range | Smallest row | Largest row |
|---|---|---|---|
| EOW water-lubricated oil-free | 5.5–250 kW | EOW-5A, 5.5 kW: 0.8 m³/min at 0.8 MPa, 0.63 at 1.0 MPa | EOW-250A, 250 kW: 42.0 m³/min at 0.8 MPa, 38.8 at 1.0 MPa |
| ETS/ETSV two-stage | 15–315 kW | ETS-75A, 75 kW: 17.6 / 16.6 / 12.4 / 11.1 m³/min at 0.7 / 0.8 / 1.0 / 1.3 MPa | ETS-315A, 315 kW: 69.0 / 67.6 / 61.0 / 51.0 m³/min at the same pressures |
| EXL low pressure | 30–250 kW | EL-30A, 30 kW: 7.0 m³/min at 0.4 MPa | EXL-250A, 250 kW: 60.0 m³/min at 0.4 MPa |
EOF is a dry oil-free, two-stage permanent-magnet variable-speed water-cooled series from 37 to 355 kW. Request the selected model's own pressure-matched row rather than reading across series.
Documents shown on the company site
- A TÜV SÜD (Shanghai Branch) attestation of conformity for total oil content under ISO 8573-1, -2 and -5, based on a type test of EOW-11A/W and listing EO-series models. Only page 1 of 2 is published: no number, date or oil class is visible, and the EOF 37W, 45W, 280W and 355W models in the current table are not in its model list. Ask for the complete document before relying on an oil-free class.
- A EUROCERT certificate MA.0460 for a technical-file review of the E series under the Machinery Directive, issued 1 October 2019 and expired 30 September 2024. It is not a current CE document.
- The Shanghai market regulator's January 2023 sampling notice also lists OSG sample EZVII-22A-8, alongside XD-22A-8, among products whose inspected items met the standards.
Both certificates name the company as Shanghai Honest Compressor Co., Ltd. at a Xuhang, Jiading address. Checked against the manufacturer's site on 30 October 2026.
COOLING SUFFIX · OIL CONTENT · PROCESS AIR
Choose A or W before finalizing the utility plan
OSG defines A as air-cooled and W as water-cooled. The reviewed XD columns are A models; a W footnote does not establish a W offer for every XD column. Larger EX entries carry A/W designations; obtain the actual version’s drawing and utilities.
Water-cooled W
Inlet temperature, quality, flow, pressure, supply/return interfaces and the actual heat-rejection boundary.
The EX table lists maximum inlet-air temperature 45°C and 380 V / 3-phase / 50 Hz supply. Confirm the destination’s electrical configuration, starter, protection and auxiliary loads.
EX’s two table groups have different oil references
- 22–90 kW group
- Approximately 3 ppm printed
- 110–250 kW group
- Approximately 5 ppm printed
These are manufacturer table references without complete sampling/test conditions here, not universal process-air acceptance limits or oil-free mechanism claims. Agree required oil, moisture and particle quality, dryer/filter/drain scope and the sampling point.
OIL · SEPARATOR · COOLER · AIR-END ACCESS
Build the ownership plan around the actual machine
OSG’s service area separates oil checking/replacement, separator-element replacement, cooler maintenance and periodic component service. Its published guidance is historical and general; use the current delivered model manual and a qualified service plan.
Oil schedule
The 2016 mineral-oil article mentions 2500 hours or one year. Do not apply that example automatically to every lubricant or operating environment. Obtain the specified grade, condition limits and actual replacement interval.
Separator service
The historical article gives general 3000–4000-hour guidance and condition-based considerations. Agree the actual element, monitoring, return-oil arrangement, qualified service and spare parts for the supplied unit.
Plant operation
Specify base/peak demand, pressure variation, receiver and load/unload or plant-sequencing concept. Request actual part-load/input data, control interfaces and maintenance/removal clearances.
Documents and responsibilities for handover
Include a pressure-matched performance sheet with volume reference, current nameplate and energy/test records, electrical and installation drawings, dryer/filter/drain specification, supplied manuals and oil/filter/separator parts schedule.
The company presents design, training, service and overhaul capabilities; agree actual destination coverage, commissioning, response arrangements, warranty and spares in the order. A general service capability is not a guaranteed overseas response time.
Questions for an OSG quotation
Does the historical XD sample establish an energy grade for my offered model?
The regulator notice concerns named samples and inspected metrology items. Obtain the current offered unit’s nameplate, model-specific test records and acceptance data.
Are the 75 kW XD and EX figures directly an efficiency ranking?
They share a published pressure but differ in capacity, enclosure and mass. Compare complete flow/test references, package input and your demand-cycle control before evaluating energy cost.
Can every EX model use the 3 ppm reference?
The source gives approximately 3 ppm for the smaller group and 5 ppm for the larger group. Agree model-specific sampling/test scope and the complete treatment system for your application.
Specify the OSG plant-air installation
Send XD or EX model, pressure-flow point, demand cycle, A/W cooling, electrical conditions, treatment and acceptance targets.
Prepare an OSG enquirySpecification pages
Specification pages for OSG product types
| Duty | Write on the RFQ |
|---|---|
| Compressor for CNC machines | Machine tools need dry, stable 7–8 bar air. Size from the cell, not from a round kW number a vendor likes to sell. |
| How to specify an air compressor | If the RFQ only says “compressor, China”, a plant cannot price it. Start with architecture, then the duty point, then the papers. |
| 75 kW 8 bar rotary screw compressor | 75 kW at 8 bar(g) is a common plant-air point. FAD is not a brochure range — it is the flow at that pressure, after the cooler, for the voltage you actually run. |
| 110 kW 10 bar rotary screw compressor | 10 bar(g) is not 8 bar with a different sticker. FAD falls as pressure rises. Write 110 kW and 10 bar together, then the flow you need at that point. |
Product information
Information reviewed 2026-10-08. Specifications apply only to the models and conditions stated.
OSG: Compare paired duties and installation data, then define cooling, air treatment and ownership requirements.
Open RFQ