Selection by operating point
Flow rate, pressure, and gas density considered alongside system characteristics.
Industrial ventilation
Centrifugal fans
Air and gas handling for industrial processes, with design and manufacturing tailored to flow rate, pressure, and operating conditions.
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Performance defined by the operating point
Kleema develops centrifugal fans for extraction, dust collection, and industrial gas handling systems. Sizing considers required flow rate, system pressure, temperature, and gas characteristics, guiding selection of the impeller, drive, and equipment construction configuration.
Design assesses the operating point and process variations to align aerodynamic performance, energy consumption, and mechanical requirements. Particulate content, wear conditions, and inspection and maintenance access also inform this definition.
Construction for the process
Impeller and materials defined by temperature, particulate loading, and wear conditions.
Operating efficiency
Assessment of efficiency at the operating point and control features to respond to process variations.
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Impeller during manufacturing — blades and inlet
Engineering from impeller to drive
Fan performance depends on compatibility between aerodynamic design, mechanical construction, and system conditions. These decisions are assessed together when specifying equipment.
- Impeller geometryConfiguration defined by flow rate, pressure, gas characteristics, and particulate content.
- Materials and protectionSelection according to temperature, abrasion, corrosion, and wear conditions.
- DriveSpeed and power assessed alongside operating duty and construction arrangement.
- Flow controlAssessment of variable frequency drive, damper, and process control integration.
- Balancing and mechanical assemblyImpeller balancing and mechanical configuration considered for operating conditions.
- Inspection and maintenanceAccess, interfaces, and available space considered in installation integration.
Manufacturing combines controlled welding, dimensional inspections, and dynamic balancing of the rotating assembly. Depending on application, selection may include abrasion-resistant steels, stainless steels, and special coatings in areas of greatest wear.
Kleema fans and impellers
Impeller types
Blade geometry is defined by the operating point, gas characteristics, and particulate content. Explore Kleema impeller configurations.
Straight blades
Moderate efficiency
Used where particulate passes through the impeller or where low flow rate and high pressure are combined.
Backward-curved blades
High efficiency
Combine high efficiency with a broad flow and pressure range. Serve a variety of industrial processes, balancing performance and initial investment.
Airfoil blades
Very high efficiency
Blades with an aerodynamic profile similar to a wing, developed to improve air handling efficiency. Used especially in large equipment and processes with demanding energy efficiency requirements.
Applications and industries
Extraction from filters and process equipment, industrial gas handling, combustion air supply, and pneumatic conveying applications. Selection considers gas characteristics, particulate content, and each installation's conditions.
Cement and limeSteel and metallurgyMiningFertilizersChemical and pharmaceuticalCeramicsIncineration and waste treatmentFood and beverages
Technical information
Specification starts with the required operating point and actual system conditions. These are the main design assessment parameters.
| Flow rate and pressure | Flow rate at actual gas conditions, required total or static pressure, and system losses. |
|---|---|
| Gas conditions | Temperature, composition, moisture, density, and installation altitude. |
| Particulate material | Dust content, concentration, abrasiveness, and wear conditions. |
| Impeller and materials | Geometry and materials defined by required performance and process characteristics. |
| Speed and power | Operating speed, absorbed power, and motor power assessed for operating duty. |
| Construction arrangement | Mechanical and drive configuration compatible with the installation and maintenance requirements. |
| Control and integration | Flow adjustment and process integration features according to scope. |
| Noise and vibration | Operating requirements, support conditions, and monitoring criteria defined for the application. |
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Tell our team which process needs ventilation and its operating conditions.