The C4-73 is a dust collection centrifugal fan designed for conveying air mixtures containing dust, wood chips and fine fibrous material. The published series includes No.3.6C, No.4.5C and No.5.5C with multiple rotational speeds for matching different airflow and pressure requirements.
Published performance covers airflow from 1,725 to 19,350 m³/h and total pressure from approximately 294 to 3,922 Pa. Where hard particles are present, suitable dust-removal equipment should be installed upstream of the fan.
Designed for Dust, Wood Chips & Fine Fibres
According to the original C4-73 product manual, the fan is mainly intended for conveying air mixtures containing dust, wood chips and fine fibrous material. Similar duties may also be considered when the required airflow and pressure fall within the published performance range.
If the conveyed medium contains hard particles, the manual recommends installing suitable dust-removal equipment before the fan inlet to reduce wear on the impeller and casing.
Performance by Fan Size
The summary below consolidates the published airflow and pressure range for each C4-73 fan size across all listed rotational speeds.
Airflow & Pressure Range by Speed
Each row summarizes the minimum and maximum published duty values at the stated rotational speed.
C4-73 Outline & Installation Dimensions
The technical drawing provides the main inlet, outlet, overall and foundation dimensional references for C4-73 No.3.6C, No.4.5C and No.5.5C configurations.
Main Dimensional Reference
Dimensions below are extracted from the original C4-73 installation table. Units are millimetres unless otherwise stated.
Dust Extraction & Material Conveying Duties
Dust Extraction Systems
Industrial extraction systems handling dusty air streams. For complete airflow, collector-resistance and duct-system planning, see the Industrial Dust Collection System.
Wood Processing
Conveying air containing sawdust, wood chips and related lightweight material.
Fibre Handling
Suitable fine-fibre conveying duties within the published fan operating range.
Process Exhaust
Industrial exhaust duties where dust loading and system pressure match C4-73 capability.
Select by Airflow, Pressure & Dust Conditions
The C4-73 series offers several rotational speeds for each fan size. Selection should consider the required airflow and pressure together with the type, concentration and particle characteristics of the conveyed material.
Required total or static pressure (Pa)
Dust or material type
Particle size and concentration
Whether hard particles are present
Operating temperature
Duct and system resistance information
Required voltage / frequency / phase
Installation dimensions for replacement projects
Quantity and destination country
C4-73 Dust Collection Centrifugal Fan FAQ
What materials is the C4-73 designed to handle?
The original manual describes applications involving dusty air, wood chips and fine fibrous material.
What airflow range is available?
Across the published No.3.6C, No.4.5C and No.5.5C performance tables, airflow ranges from approximately 1,725 to 19,350 m³/h.
What is the published pressure range?
Published total pressure ranges from approximately 294 to 3,922 Pa depending on fan size and rotational speed.
What fan sizes are available?
The supplied manual lists No.3.6C, No.4.5C and No.5.5C.
What should be done if the air contains hard particles?
The original manual recommends installing suitable dust-removal equipment before the fan inlet when hard particles are present.
What efficiency does the C4-73 reach?
Published total-pressure efficiency values in the supplied tables range from approximately 80% to 88%.
Can QIYUE FAN match project voltage and frequency?
Motor configuration can be reviewed according to the selected operating point and project voltage, frequency and phase requirements.
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