Precision Linear Airflow for Space-Constrained Assemblies
Delco Light Duty Cross Flow Fans / Tangential Blowers are engineered to deliver a broad, continuous, and remarkably uniform air curtain across wide rectangular discharge outlets. Operating under the tangential airflow principle, these blowers intake air through the periphery of the cylindrical rotor and output it evenly along the full length of the housing, eliminating localized hotspots and turbulent dead zones.
Manufactured in-house at our Thane facility since 1974, each unit integrates high-precision AC shaded pole motors or FHP drives. Designed with a slim aerodynamic cross-section, Delco tangential blowers provide low noise levels, minimal vibration, and excellent energy efficiency—making them the primary choice for global OEMs producing air curtains, trench heaters, commercial refrigeration display cabinets, and electronic cooling systems.
Key Technical Features & OEM Advantages
Uniform Air Curtain Distribution along the entire length of the blower wheel
Ultra-Slim & Compact Form Factor for low-profile machinery integration
Acoustically Tuned Low Noise & Low Vibration operational performance
Integrated In-House AC Shaded Pole Motor with impedance protection
Durable Lightweight Construction using premium aluminium impellers
Continuous-Duty Reliability validated across extreme ambient conditions
Technical Specifications Reference
Our standardized and custom tangential blower configurations are tailored according to customer airflow velocity, static pressure resistance, thermal protection class, and dimensional envelope.
| Parameter | Standard Specification Range | OEM Customization Options |
|---|---|---|
| Motor Type | Single Phase AC Shaded Pole Motor | Dual Speed / Capacitor Run / EC Motors |
| Rated Voltage / Frequency | 230V AC / 50Hz (or 110V AC / 60Hz) | Wide Voltage Bands & Custom Lead Wire Harnesses |
| Impeller Diameters | Ø30mm, Ø45mm, Ø60mm | Special Diameter Profile Machining |
| Active Discharge Length | 120mm to 450mm | Modular Stacking / Non-Standard Widths |
| Bearing Configuration | Self-Aligning Sintered Bronze Sleeve Bearings | High-Temp Sealed Precision Ball Bearings |
| Insulation Class | Class B (130°C) or Class F (155°C) | Class H Winding Insulation & Thermal Cutouts |
| Housing Material | Galvanized Steel / Corrosion-Resistant Sheet Metal | Powder Coated / Custom Mounting Flanges |
Primary Applications & Industry Use Cases
Tangential blowers are preferred wherever high volume linear airflow must pass through narrow spaces without generating excessive acoustic noise or pressure spikes. Typical OEM deployments include:
- HVAC & Commercial Heating: Air curtain units, trench heaters, fan coil units, floor convectors, and wall-mounted space heaters.
- Refrigeration & Food Service: Commercial glass-door display cabinets, cold-chain air shields, and under-counter coolers.
- Electronic Enclosures: Server rack ventilation, power supply cooling panels, and industrial control cabinets.
- Medical & Laboratory: Incubator air circulating systems, diagnostic equipment cooling, and sterile airflow hoods.
Stringent In-House Testing & Quality Assurance (E-E-A-T)
With over five decades of motor manufacturing expertise, Delco Fans maintains complete quality control over the production cycle. Every light duty tangential blower batch undergoes rigorous testing prior to packaging:
- Dynamic Impeller Balancing: Multi-plane dynamic balancing prevents shaft deflection, reducing bearing wear and vibration.
- Airflow Velocity Verification: Multi-point anemometer testing across the outlet face ensures uniform velocity distribution without dead spots.
- Electrical Safety & Endurance: High-voltage breakdown, insulation resistance, locked-rotor testing, and temperature-rise checks under rated load.
Frequently Asked Questions
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