Ningbo Baosi Energy Equipment
- Headquarters
- Fenghua, Ningbo, Zhejiang
- Established / listed
- 2005 / Shenzhen, 2015
- Listed identity
- Stock code 300441
- Compressor supply
- Air-ends and complete screw equipment
Two purchasing roles within one manufacturer
Baosi develops compressor air-ends and complete screw-compressor equipment. The wider company also produces vacuum pumps, hydraulic pumps and other equipment. Those businesses do not make their ratings interchangeable with an air-compressor duty.
The official company profile identifies manufacturing locations in Ningbo, Jiangxi and Chongqing. Its listed-company disclosure confirms compressor research, design, production and sales, with air-ends and complete machines as distinct supply categories.
Choose by pressure, air quality and integration task
Complete machine · oil-injected
BYF single-stage air-cooled package
For an industrial compressed-air supply, start with the required pressure and delivered flow, then the load schedule. The official catalogue separates this smaller single-stage BYF range from its larger two-stage BYF range.
Before selection: agree the model, electrical supply, package power, ventilation and included receiver/dryer/filter scope.
View documented BYF family →
Complete machine · dry oil-free
Two-stage or three-stage dry screw
Specify the process pressure first. Baosi lists a lower-pressure two-stage family and a separate higher-pressure three-stage family; the stage labels should not be selected by motor size alone.
Before selection: request capacity at your pressure, cooling requirements and oil-content evidence for the exact model. Specify moisture and particle limits separately.
Compare dry oil-free families →
OEM component · integration required
YHE two-stage oil-injected air-end
For a compressor builder or a replacement integration project, use a named air-end and interface drawing. This listing represents the horizontal integrated YHE 0.8 MPa family, not a complete compressor installation.
Before selection: agree speed/drive, mounting, lubrication, separation and cooling arrangements, plus responsibility for package controls and acceptance testing.
View YHE integration scope →Read each catalogue range as a separate family
| Family | Pressure range | Published power range | Published capacity range |
|---|---|---|---|
| BYF single-stage, air-cooled | 0.8 MPa / 8 bar | 7.5–22 kW | 1.0–3.5 m³/min |
| Dry oil-free, two-stage | 0.3–0.5 MPa / 3–5 bar | 26–385 kW | Request selected model |
| Dry oil-free, three-stage | 0.6–0.8 MPa / 6–8 bar | 110–550 kW | Request selected model |
| YHE integrated two-stage air-end | 0.8 MPa / 8 bar | 22–132 kW | 4.2–27.0 m³/min |
A useful comparison needs a named model
Do not pair the lowest motor power with the highest family capacity. Obtain pressure and flow together, with the measurement basis, drive speed and inlet/test conditions. The catalogue range alone does not establish ISO 1217 FAD or total package electrical consumption.
For YHE, confirm whether the stated power concerns the proposed drive and how the full package's auxiliaries are accounted for. For dry oil-free equipment, compare the exact stage arrangement and cooling scope at the required pressure.
Separate manufacturing scope from order acceptance
Baosi's documented air-end and complete-machine activities support two different supply routes. Make the manufacturing and integration boundary explicit in the order documents.
Buying a complete machine
- Model-specific duty sheet, package configuration and voltage/frequency.
- Arrangement and ventilation/cooling requirements, controls and treatment scope.
- Agreed inspection records, installation manual, consumables and startup responsibilities.
Buying an OEM air-end
- Exact air-end and drawing revision, allowed speed and operating conditions.
- Drive, mounting and fluid-circuit interfaces, including what the integrator supplies.
- Component acceptance data, package-level test responsibility and replacement compatibility.
The corporate honours page includes certification claims. Require the current issuer record, model and test scope before treating any claim as approval for your order; this profile does not award certification badges.
A first enquiry that avoids another round of questions
- Choose the supply: complete oil-injected machine, dry oil-free machine or YHE air-end.
- Describe the duty: pressure, flow and basis, load range, operating hours and outlet-air requirements.
- Describe the site: electrical supply, ambient/altitude, cooling, footprint and installation access.
- Set the scope: treatment, controls, integration, inspection documents, destination and delivery/startup responsibilities.
For a replacement air-end, include the existing model/nameplate and drawings. A similar capacity headline does not establish a drop-in replacement.
Questions about Baosi selections
Are the single-stage and two-stage BYF ranges interchangeable?
No. The single-stage air-cooled BYF family spans 7.5–22 kW, while the separately listed two-stage family spans 37–132 kW. Specify the stage arrangement and exact model, then compare matched pressure and delivered capacity.
Does dry oil-free mean the delivered air needs no treatment?
Specify the process's moisture and particle limits as well as oil content. Request evidence for the selected compressor and treatment package; the dry compression architecture does not define every outlet-air quality requirement.
Can I order a YHE air-end as a complete compressor?
The air-end is an integration supply. Ask for a separate complete-package proposal if you require the motor, enclosure, separation/cooling circuits, controls and air treatment supplied together.
Which dry oil-free family suits an 8-bar duty?
The published three-stage family spans 0.6–0.8 MPa. The two-stage listing spans 0.3–0.5 MPa. Start with the correct family, then request the named model's delivered capacity and electrical input at 8 bar.