OBF - Medium Pressure Centrifugal Fan
The OBF series is a high-efficiency, single-inlet medium-pressure centrifugal fan designed for industrial ventilation systems demanding both high airflow volumes and elevated static pressure performance. Manufactured from high-quality S235 steel with a durable epoxy-painted finish, the OBF series handles dusty air, sawdust, toxic gases, and corrosive environments with equal reliability — and is available with belt-pulley, direct-coupled, or coupling drive systems, as well as stainless steel and Ex-Proof configurations for the most demanding applications.
- We guarantee EU-standard quality.
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- Backed by 24 years of expertise.
Areas of Use
The OBF series is the definitive solution for industrial and commercial ventilation systems where high flow rates and elevated system pressure losses must be overcome simultaneously. Its robust construction and versatile drive options make it an indispensable workhorse across the most demanding industrial environments. Use these high-performance medium-pressure centrifugal fans confidently in:
- Dusty air suction, dust collection, and sawdust extraction systems
- Industrial drying, mechanical extraction, and process ventilation
- Toxic and harmful gas exhaust in manufacturing and chemical facilities
- High-pressure ventilation systems in factories, warehouses, and industrial plants
- Corrosive or high-temperature environments (with stainless steel or Ex-Proof option)
Key Features & Specifications
High-Efficiency Single-Inlet Medium-Pressure Design: The OBF series is engineered for applications where both high airflow and elevated static pressure are required simultaneously — making it the ideal choice for systems with high duct resistance, long runs, or multiple bends and fittings.
Robust S235 Steel with Epoxy Paint Finish: The heavy-duty volute body is manufactured from S235 structural steel and finished with a durable, corrosion-resistant epoxy paint coating on all surfaces, ensuring long-lasting protection in the harshest industrial environments.
Flexible Drive System Options: Available with belt-driven, direct-coupled, or elastic coupling drive configurations. The belt-pulley option allows precise flow-rate and pressure adjustment during commissioning, ensuring the fan operates at exactly the required working point.
Backward-Curved Radial Blades: Equipped with high-efficiency, backward-curved radial impellers that deliver stable, non-overloading medium-pressure performance across a wide operating range — ensuring consistent, reliable operation even as system conditions change over time.
Handles Dusty & Aggressive Airstreams: Specifically designed and tested for use with dusty air, sawdust-laden air, and toxic gas exhaust streams — making the OBF series suitable for the most challenging industrial extraction and process ventilation applications.
Stainless Steel & Ex-Proof Options: For corrosive, high-temperature, or potentially explosive industrial environments, the OBF series can be custom-manufactured from stainless steel or with full Explosion-Proof (Ex-Proof) certification, guaranteeing maximum safety and service life.
Adjustable Discharge Direction & Optional Slide System: The ergonomic volute design allows the discharge throw direction to be set as required. An optional sliding system is available for quick, tool-free access to the motor and rotor during maintenance — minimizing downtime significantly.
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