This article's table of contents introduction:
- Core Specification Breakdown
- Typical Motor Power (kW)
- Fan Type & Design (Impeller)
- Key Technical Parameters
- Recommended Accessories
- Dimensions (Approximate)
- Checklist (Questions to ask the supplier)
- Quick Quote Request Template
This is a specification for a large-scale industrial exhaust fan, typically used in dust collection, ventilation, or fume extraction systems.
Here is a detailed breakdown of what a 60,000 m³/h Dust Collector Exhaust Fan entails, including typical specifications, motor power, and selection criteria.
Core Specification Breakdown
- Flow Rate: 60,000 m³/h (Cubic meters per hour).
- Conversion: This equals 1,000 m³/min or approximately 35,300 CFM (Cubic Feet per Minute).
- Application: Dust collector system (baghouse, cartridge, or cyclone).
- Air Type: Air containing dust, particulates, or fumes (requires an industrial, usually backward-curved or radial blade fan).
Typical Motor Power (kW)
The required motor power depends heavily on Static Pressure (resistance in the ductwork and filter). For a 60,000 m³/h fan, here are estimates for different pressure ranges:
| Static Pressure (Pa) | Static Pressure (in. w.g.) | Estimated Motor Power | Typical Application |
|---|---|---|---|
| 1,500 – 2,000 Pa | 6 – 8 in. w.g. | 45 – 55 kW | Simple venting, low-resistance cyclones |
| 2,000 – 2,500 Pa | 8 – 10 in. w.g. | 55 – 75 kW | Standard baghouse dust collectors |
| 2,500 – 3,500 Pa | 10 – 14 in. w.g. | 75 – 110 kW | High-efficiency cartridge filters, long duct runs |
| > 3,500 Pa | > 14 in. w.g. | 110+ kW | High-pressure pneumatic conveying |
Note: A common specification for a general industrial dust collector is 75 kW (100 HP) at approximately 2,500 Pa.
Fan Type & Design (Impeller)
For 60,000 m³/h with dust, you should look for:
- Backward Curved (BC) / Backward Inclined (BI) Fans:
- Best for: High efficiency, non-stalling characteristics.
- Dust Handling: Moderate; requires a radial tip or steel plate design to reduce dust buildup on the blades.
- Radial Blade (Paddle Wheel) Fans:
- Best for: Heavy dust loads (wood chips, metal grinding, sticky materials).
- Efficiency: Lower than BC, but self-cleaning and durable.
- Aerofoil Fans:
- Best for: Highest efficiency with clean or very fine dust.
- Risk: Blades can clog with sticky or moist dust.
Key Technical Parameters
When sourcing this fan, you must specify:
- Flow: 60,000 m³/h
- Static Pressure (SP): You must know this. (e.g., 2,200 Pa)
- Air Density: Typically 1.2 kg/m³ (standard). Must be corrected for high altitude or high temperature.
- Temperature: Maximum operating temperature (e.g., 80°C ambient, or up to 200°C for process exhaust).
- Mounting: Arrangement (e.g., Arrangement 3 - motor on base, Arrangement 4 - direct coupled, Arrangement 9 - belt driven with motor on base).
- Discharge Position: Top horizontal, bottom angular, etc.
- Construction Material:
- Standard: Mild Steel (painted).
- Corrosive: Stainless Steel 316L (SS316L).
- Spark-Resistant: Aluminum impeller or carbon steel with Teflon coating + earthing.
Recommended Accessories
- Variable Frequency Drive (VFD): Highly recommended for 60,000 m³/h to allow for duct balancing, soft start, and energy savings.
- Inlet Box / Inlet Damper: For capacity control if VFD is not used.
- Isolation Dampers: On inlet and outlet for maintenance shutdown.
- Flexible Connectors (Neoprene or Silicone): To isolate vibration from ductwork.
- Vibration Isolators: Spring or rubber pads for the base.
- Aneroid Manometer / Transmitter: To monitor filter pressure drop.
Dimensions (Approximate)
For a fan of this size (60,000 m³/h @ ~2,200 Pa):
- Inlet Diameter: 600 mm – 800 mm (24” – 32”)
- Outlet Diameter: 500 mm – 700 mm (20” – 28”)
- Impeller Diameter: 1,000 mm – 1,400 mm (40” – 55”)
- Motor Frame: 280S to 315M (depending on kW)
- Overall Footprint: Approximately 2.5m (L) x 1.5m (W) x 2.0m (H)
Checklist (Questions to ask the supplier)
- Can the motor handle the start-up inertia? (Direct online start of a 75kW fan requires a high torque motor and a strong electrical supply. A VFD or Star-Delta starter is strongly recommended).
- Is the impeller dynamically balanced to ISO 1940 G6.3 or G2.5? (G2.5 is better for longevity).
- What is the maximum RPM before the impeller becomes unstable?
- Does the fan have a drain plug? (For condensation buildup).
- What is the bearing life (L10) at the design RPM?
- Is the fan housing reinforced for negative pressure? (Dust collectors operate under vacuum; a 60,000 m³/h fan can collapse a thin housing).
Quick Quote Request Template
Subject: RFQ for 60,000 m³/h Dust Collector Fan Flow: 60,000 m³/h Static Pressure: Pa (Fill in your system pressure) Temperature: °C Material: Mild Steel / Stainless Steel Drive: Belt Drive / Direct Drive Motor: kW (IP55, TEFC) Application: General dust / Wood / Welding fume / Chemical
Summary: For a standard dust collector at 60,000 m³/h, you are looking at a 75 kW, 1,200 RPM motor, a 1,200mm diameter backward curved impeller, and a ~1.5m wide fan housing. Budget for a VFD to manage start-up and airflow.
