4kw 380V Medium Pressure Blower Printing Machine Low Noise

• Customization: Available
• Material: Stainless Steel
• Usage: for Experiment, for Air Conditioner, for Manufacture, for Refrigerate
• Model NO.: ZY-4.0
• Flow Direction: Centrifugal
• Pressure: Medium Pressure
• Certification: CE
• Phase: 3 Phase
• Customized Support: OEM, ODM
• Temperature Resistance of Air Inlet: 230
• Maximum Airflow of Motor: 400-1535 M³/H
• Brand Name: Baofeng
• Voltage: 110V/220V/380V
• Warranty: 1year
• Frequency: 50 Hz/60Hz
• Transport Package: Wood Packaging
• Specification: Stainless Steel
• Trademark: Baofeng
• Origin: Guangzhou, China

Product Description

Products and Applications

Medium-pressure blower

Working Principle

Technical Advantage

Medium-pressure fans refer to fans with a pressure ratio between 1.02 and 1.1 and a pressure rise range of 2 to 10 kPa (corresponding to duct pressure of 250 to 500 Pa), which are intermediate between low-pressure and high-pressure fans. Their gas processing is completed within the same radial plane, hence they are also called 'radial flow centrifugal fans.'

Centrifugal force is generated by the high-speed rotation of the impeller. Gas enters the impeller axially and then flows radially, converting kinetic energy into pressure energy. Single-stage fans use a volute to expand the pressure, while multi-stage fans use a return flow device to enter the next impeller for further pressurisation. Gas is treated as an incompressible fluid, with an efficiency of approximately 90%.

Impeller aerodynamic optimisation: Utilises a three-dimensional flow blade design (backward-curved impeller with β > 90°) to reduce vortex losses and improve aerodynamic efficiency by 8%–15% (to over 85%).
Low-resistance volute: Logarithmic spiral volute expansion structure improves static pressure conversion efficiency by 20% and reduces turbulent energy consumption.

Areas of application	Application scenario	Areas of application	Application scenario
Industry	packaging machinery, printing equipment, electroplating bath mixing, sewage treatment, etc.	Environmental protection	air de-dusting, water treatment aeration, waste disposal, etc.
Agriculture and food	aquaculture oxygenation, food filling, vacuum conveying, etc.	Others	laser equipment, woodworking machinery, tunnelling, etc.

Customised Product Showcase

250W Medium-pressure blower

550W Medium-pressure blower

750W Medium-pressure blower

3KW  Medium-pressure blower

5KW Medium-pressure blower

11KW Medium-pressure blower

Customer Visits and Communication

Company environment and Key certificates

China High-Tech Enterprise

China Mechanical and Electrical Equipment Industry Quality Assurance Enterprise

China Credit Demonstration Unit