4-2×79 Centrifugal Fan
The fan can be used for indoor ventilation in general factories, large buildings, air-conditioning systems, and high-rise structures.
It is suitable for conveying air or other non-self-igniting, non-flammable, non-corrosive gases that are harmless to humans.
No viscous substances are allowed in the gas. The content of dust and hard particles should not exceed 150 mg/m³,
and the gas temperature should be no higher than 80°C.
Specifications:
Pressure range: 226 – 2 393 Pa
Air volume: 60 000 – 370 000 m³/h
Impeller diameter: 1 200 – 2 000 mm
Speed: 260 – 1 040 rpm
Power: 7.5 – 250 kW
Drive type: Direct / Coupling / Belt driven
Medium: Air or non-corrosive, non-flammable, non-toxic gases
Gas dust content: ≤ 150 mg/m³
Gas temperature: ≤ 80°C
CONFIGURATION OPTIONS
1. CONSTRUCTION & MATERIALS
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Impeller: Carbon steel; optional FRP, stainless steel, rubber lining, wear-resistant or ceramic coating.
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Casing / Damper: Standard carbon steel; optional FRP or stainless steel.
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Main Shaft: High-strength alloy steel.
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Bearings: ZWZ / SKF / FAG / NSK.
2.SYSTEM & ACCESSORIES
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Motor: High-efficiency Chinese brand or ABB / Siemens / WEG.
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Optional Parts: Base frame, silencer, flexible joint, damper, rain cover, shock absorber, sensors, inverter, soft starter, monitoring instruments.
| Serial number | Machine number | Rotating Speed (r/min) | Full Pressure (Pa) | Air Volume (m³/h) | Power (kW) |
|---|---|---|---|---|---|
| 1 | 12E | 1040 | 2393–1638 | 106600–175600 | 132.0 |
| 1 | 12E | 940 | 1952–1334 | 94000–158600 | 90.0 |
| 1 | 12E | 840 | 1530–1040 | 81800–138000 | 75.0 |
| 1 | 12E | 740 | 1216–824 | 78500–134800 | 55.0 |
| 1 | 12E | 580 | 755–510 | 59400–97800 | 22.0 |
| 1 | 12E | 530 | 533–360 | 52000–87000 | 18.5 |
| 1 | 12E | 470 | 403–333 | 43200–79400 | 15.0 |
| 1 | 12E | 420 | 347–265 | 38300–70700 | 11.0 |
| 2 | 14E | 850 | 2187–1491 | 138300–237000 | 160.0 |
| 2 | 14E | 740 | 1687–1147 | 120000–203000 | 132.0 |
| 2 | 14E | 620 | 1363–932 | 97900–162900 | 90.0 |
| 2 | 14E | 520 | 883–598 | 74500–123000 | 75.0 |
| 2 | 14E | 460 | 637–431 | 68100–112400 | 18.5 |
| 2 | 14E | 420 | 530–363 | 60000–98800 | 15.0 |
| 2 | 14E | 370 | 412–275 | 53400–88200 | 11.0 |
| 2 | 14E | 320 | 324–226 | 48000–79400 | 7.5 |
| 3 | 16E | 740 | 2177–1481 | 171400–295600 | 185.0 |
| 3 | 16E | 660 | 1726–1177 | 160200–275000 | 132.0 |
| 3 | 16E | 580 | 1334–902 | 140600–231300 | 90.0 |
| 3 | 16E | 520 | 1076–728 | 123000–205000 | 75.0 |
| 3 | 16E | 470 | 873–598 | 113800–188000 | 55.0 |
| 3 | 16E | 370 | 684–451 | 94800–157000 | 37.0 |
| 3 | 16E | 320 | 539–373 | 89600–148000 | 30.0 |
| 3 | 16E | 290 | 333–226 | 72000–116000 | 18.5 |
| 4 | 18E | 660 | 2187–1491 | 228000–375800 | 250.0 |
| 4 | 18E | 580 | 1687–1147 | 200400–330000 | 160.0 |
| 4 | 18E | 520 | 1363–932 | 179000–296000 | 132.0 |
| 4 | 18E | 460 | 883–598 | 145000–239000 | 90.0 |
| 4 | 18E | 370 | 674–431 | 121000–200000 | 75.0 |
| 4 | 18E | 330 | 549–363 | 113800–183000 | 55.0 |
| 4 | 18E | 290 | 429–284 | 94800–152000 | 37.0 |
| 4 | 18E | 260 | 343–226 | 89600–148000 | 30.0 |
| 5 | 20E | 520 | 1942–1134 | 271600–446000 | 250.0 |
| 5 | 20E | 520 | 1677–1138 | 246400–400000 | 200.0 |
| 5 | 20E | 420 | 1373–932 | 199200–327400 | 132.0 |
| 5 | 20E | 370 | 1089–745 | 175600–288700 | 90.0 |
| 5 | 20E | 330 | 843–579 | 156600–257300 | 55.0 |
| 5 | 20E | 290 | 677–451 | 137600–226000 | 37.0 |
| 5 | 20E | 260 | 422–284 | 123400–204800 | 30.0 |
Professional Support Throughout Every Stage — From Selection to After-Sales Maintenance
At Dajing blower, we are dedicated to providing clients with a comprehensive, one-to-one service experience.
Our process covers every stage — pre-sale technical consultation, in-sale production tracking, and after-sale “Private Manager” support — ensuring efficiency, safety, and customer satisfaction.
Expert Technicians for Your Equipment Needs
Each customer is assigned a professional engineer responsible for model selection and technical consultation. We use advanced CAD and CAPP software to provide accurate blower designs and simulate performance for various working conditions.
In-Sale: Full-Process Tracking Service
Your designated project manager monitors the entire process — from material selection, manufacturing, and testing, to shipment and installation. We ensure every blower meets strict quality standards and delivery deadlines.
After-Sale: Private Manager Service
After delivery, Dajing provides 24/7 “Private Butler” after-sales support. Our service follows the “1224 Standard”: respond within 1 hour, provide feedback within 2 hours, and resolve within 24 hours.
