HC Rotary Air Blower is a positive displacement blower designed to provide stable airflow for industrial applications. It features a compact structure and reliable performance, making it suitable for both pressure and vacuum applications. Designed for continuous operation, the blower delivers consistent airflow while maintaining low operating noise and convenient maintenance. It is widely used in wastewater treatment, petrochemical processing, cement production, power generation, metallurgy, and pneumatic conveying systems.

Structure

Motor

The motor provides the driving force for the blower. It delivers stable power to the main unit, ensuring reliable and continuous operation under various working conditions.

Air Filter

The air filter removes dust and other particles from the intake air before it enters the blower. Clean intake air helps protect internal components, reduces wear, and contributes to a longer service life.

Blower Main Unit

The blower main unit is the core component responsible for air intake, compression, and discharge. It houses the rotor assembly together with the transmission, lubrication, and sealing systems, ensuring stable airflow and reliable performance.

Air Chamber

The air chamber guides the airflow through the blower and supports smooth air delivery during operation. Its design helps maintain stable pressure and airflow characteristics.

Base with Integrated Oil Tank

The blower is mounted on a sturdy base that provides structural support and incorporates an integrated oil tank. This compact design simplifies installation while supplying lubricating oil to the blower during operation.

Oil Drip Nozzle

The oil drip nozzle automatically delivers lubricating oil into the cylinder during operation. This lubrication method reduces friction between moving parts, lowers operating noise, and helps minimize internal air leakage.

Working Principle

Positive Displacement Operation

HC Rotary Air Blower operates based on the positive displacement principle.

The rotor is mounted eccentrically inside the cylinder. As the rotor rotates, the volume between the rotor lobes and the cylinder changes continuously. This changing volume allows the blower to complete the processes of air suction, compression, and discharge in each rotation cycle.

The continuous movement of the rotor provides a stable airflow suitable for industrial aeration and pneumatic conveying applications.

Automatic Lubrication

During operation, the pressure difference generated inside the blower automatically transfers lubricating oil from the oil tank to the oil drip nozzle. The oil then enters the cylinder to lubricate the moving components.

This lubrication system helps reduce mechanical friction, decrease operating noise, and limit the return of compressed air inside the cylinder, contributing to stable and reliable operation.

Features

Low Noise Tri-Lobe Rotor

The blower adopts a tri-lobe rotor design that reduces airflow pulsation and contributes to smoother air delivery with lower operating noise.

Noise-Reduction Casing

The casing incorporates noise-reduction design techniques to further decrease operating sound while maintaining structural strength.

Integral Shaft Ductile Iron Impellers

The impellers are manufactured from ductile iron with an integral shaft structure, providing high mechanical strength and reliable performance during continuous operation.

Dual Splash Lubrication

The dual splash lubrication system ensures sufficient lubrication for key rotating components, helping reduce wear and extend service life.

Oversized Cylindrical Roller Bearings

Oversized cylindrical roller bearings provide excellent load-carrying capacity and support stable operation under demanding industrial conditions.

Precision Helical Timing Gears

The blower is equipped with hardened precision helical timing gears and taper-lock shaft mounting, ensuring accurate rotor synchronization and convenient installation.

Versatile Configuration

Multiple configuration options allow the blower to meet different installation layouts and application requirements.

Piston Ring Air Seals

Piston ring air seals help reduce internal air leakage and improve operating efficiency.

Viton Lip-Type Oil Seals

Lip-type Viton oil seals provide reliable sealing performance and help prevent lubricating oil leakage during operation.

Air Cooling

The blower adopts an air-cooling design that effectively dissipates heat without requiring an external cooling system, contributing to simple maintenance and reliable performance.

Automatic Belt Tensioner and Integrated Silencer Base Frame

For packaged blower systems, an automatic belt tensioner helps maintain proper belt tension, while the integrated discharge silencer base frame contributes to lower system noise and easier installation.

Technical Specifications

Operating Pressure

Pressure: Up to 98 kPa

Vacuum: Up to -49 kPa

Air Flow Capacity

Flow Rate: 0.6–113 m³/min

Different models are available to meet various airflow and pressure requirements for industrial applications.

Applications

Wastewater Treatment

Provides aeration for biological treatment systems and oxygen supply for wastewater processing.

Petrochemical Industry

Supplies process air for pneumatic conveying and auxiliary production equipment.

Cement Industry

Suitable for conveying cement, fly ash, and other powdered materials through pneumatic conveying systems.

Power Generation

Used in ash handling systems, flue gas treatment, and other auxiliary air supply applications.

Metallurgical Industry

Provides compressed air for conveying and other industrial processes in metallurgical production.

Pneumatic Conveying

Suitable for conveying powders, granules, and other bulk materials across a wide range of industrial production lines.

Advantages

HC Rotary Air Blower provides stable airflow with a compact and durable structure. The automatic lubrication system reduces maintenance requirements while improving operating reliability. Its low-noise design, efficient transmission system, and multiple configuration options make it suitable for continuous operation in a wide variety of industrial applications. With support for both pressure and vacuum operation, the blower offers flexible performance for different process requirements.