The High Volume Industrial Exhaust Fan is a heavy-duty, wall-mounted axial fan designed for high-volume, low-pressure industrial ventilation. It is used for heat removal, air exchange, moisture control, and continuous exhaust in large commercial, industrial, agricultural, and high-bay buildings.
Airflow & Product Specifications
|
Model |
Blade Diameter |
Speed |
Motor Power |
Airflow @ 0" SP |
Airflow @ 0.10" SP |
Airflow @ 0.125" SP |
Dimensions (W×H×D) |
Weight |
|
HEF-1060 |
1000 mm / 39" |
450 RPM |
0.75 / 1.0 kW/HP |
28,000 CFM |
23,800 CFM |
22,200 CFM |
1080×1080×400 mm |
48 kg |
|
HEF-1250 |
1250 mm / 50" |
420 RPM |
1.1 / 1.5 kW/HP |
38,000 CFM |
32,300 CFM |
30,100 CFM |
1300×1300×450 mm |
65 kg |
|
HEF-1380 |
1380 mm / 54" |
370 RPM |
1.5 / 2.0 kW/HP |
44,500 CFM |
37,800 CFM |
35,200 CFM |
1380×1380×450 mm |
78 kg |
|
HEF-1460 |
1460 mm / 57" |
340 RPM |
2.2 / 3.0 kW/HP |
51,000 CFM |
43,300 CFM |
40,400 CFM |
1500×1500×450 mm |
86 kg |
Motor & Electrical Configuration
|
Parameter |
Standard |
Optional |
|
Voltage |
380–415V |
220–240V / 460–480V |
|
Phase / Frequency |
3-Phase / 50Hz |
1-Phase (HEF-1060 only) / 60Hz |
|
Insulation |
Class F |
Class H |
|
Protection |
IP55 |
IP65 |
|
Duty |
S1 Continuous |
- |
|
Starting |
DOL |
Soft Starter / VFD |
Exhaust Applications
Manufacturing Workshops: Used for general heat removal and exhaust of welding fumes, oil mist, and other airborne contaminants in suitable workshop environments.
Warehouses & Logistics Hubs: Used to increase air exchange and reduce heat accumulation in high-bay facilities.
Compressor & Power Rooms: Discharges continuous heat output from air compressors, transformers, and standby power generators.
Agricultural Facilities: Regulates temperature buildup and moisture levels in commercial livestock barns, poultry houses, and greenhouses.
Fan Construction
Housing Assembly: Heavy-duty hot-dip galvanized steel housing with a specified zinc coating weight of 275 g/m². Stainless steel 304 housing is available for HEF-1380 and HEF-1460 configurations.
Impeller Blades: Stamped SS304 or molded FRP (Fiber-Reinforced Plastic) blades, dynamically balanced.
Installation
Wall Opening Preparation: Fits structural steel framing, precast concrete panels, or masonry cutouts through corner-flange anchors.
Mounting & Alignment: Position the unit within the prepared wall opening and secure the corner-flange anchors to maintain a stable, level installation and consistent clearance around the housing.
Electrical Connection & Commissioning: Connect the specified power supply and control wiring according to the wiring diagram, then verify secure terminals, correct polarity/voltage, and proper operation before final enclosure or panel installation.
Maintenance & Replacement Parts
Belt Inspection: Periodic checking of belt tension and pulley alignment is recommended for belt-driven models.
Impeller Cleaning: Regular removal of dust buildup on blades preserves dynamic balance and avoids motor overload.
Spare Parts Availability: Direct factory availability for replacement blade hubs, drive belts, IP55 motors, IP55 junction boxes, and shutter louvers.
Certifications & Compliance
EAEU Declaration of Conformity: Certified under TR CU 010/2011 (Machinery Safety) and TR CU 020/2011 (EMC Compliance).
ISO Quality Standards: ISO 9001:2015 (Quality), ISO 14001:2015 (Environmental), and ISO 45001:2018 (Occupational Health & Safety) certified production facilities.
FAQ
Q: What is the minimum order quantity (MOQ)?
A: The standard MOQ is 2 units per model for stock configurations or 1 unit for custom-voltage/blade-material orders. Orders below 2 units incur a 15% small-order surcharge.
Q: What is the production lead time after order confirmation?
A: Standard models (HEF-1060/1250) ship within 15–20 working days. Custom-voltage or stainless-steel-housing models (HEF-1380/1460) require 25–35 working days for housing fabrication.
Q: What warranty period is offered, and what does it cover?
A: An 18-month warranty from the bill-of-lading date covers motor windings, bearings, and impeller-balance defects. It excludes damage from incorrect voltage connections or improper make-up-air installation.
Q: How loud is the fan during operation?
A: Sound pressure ranges from 68 dB(A) for the HEF-1060 to 76 dB(A) for the HEF-1460, measured at 1 meter.
Q: What payment terms are accepted for international orders?
A: We accept a 30% T/T deposit, with the balance paid against a copy of the bill of lading, or an irrevocable L/C at sight for orders above USD 20,000.
Q: Can the fan be customized?
A: Yes. Voltage, blade material (SS304 or FRP), housing color (RAL code), and OEM nameplate/labeling can be customized, typically adding 5–7 days to the standard lead time.
Q: How many units fit in a standard shipping container, and how are they packaged?
A: A 40HQ container holds approximately 40 HEF-1060 units or 24 HEF-1460 units. Each fan is packed in a plywood crate with corner-flange protection to prevent shutter damage during transit.
Q: What after-sales support is available overseas?
A: Spare parts-including motors, blade hubs, and shutter louvers-are available for international dispatch within 5 days. Technical support via video call is provided for on-site troubleshooting within 24 hours of request.
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