Workshop Industrial Ceiling Fan Energy-Saving Cooling for Tall Factory Spaces, Wenmai Power 7.3M Permanent Magnet Direct Drive Industrial Large Fan

Wenmai Power · 7.3M Permanent Magnet Direct Drive Industrial Large Fan

Model: WM‑5‑73B (inner rotor) / WM‑5‑73C (outer rotor), blade diameter 7.3 meters

Core Selling Points

1. Large air volume low energy consumption: Only 1.5KW power, can replace dozens of wall-mounted small fans, achieving large-area ventilation and cooling in workshops, saving electricity costs.

2. Quiet operation: Operating noise <36dB, will not interfere with normal workshop production operations.

3. Multiple safety protections: Equipped with anti-fall steel wire rope, safety chain, high-strength fasteners, anti-fall ring, multiple protections to avoid fall risks.

4. Maintenance-free permanent magnet motor: Permanent magnet direct drive structure, no oil pollution, no regular maintenance required; low motor temperature rise, low failure rate.

5. 3-year whole machine warranty, including on-site service; can issue 13% VAT special invoice; quotation includes product, complete set of materials, transportation, installation.

6. Complete enterprise qualifications: High-tech enterprise, ISO9001 certification, first-class energy efficiency, 21 authorized patents, product liability insurance, with many large factory implementation cases.

Two Models Parameter Comparison

WM‑5‑73B Inner Rotor Model:

Fan diameter: 7.3 meters

Power/Voltage: 1.5KW, 380V

Whole machine weight: 110Kg (motor 49Kg)

Rated speed: 60 RPM

Noise: <36dB

Maximum coverage open area: diameter 35‑43 meters

Full load air volume: 16890m³/min

Maximum wind speed: 3.8m/s WM‑5‑73C

WM‑5‑73B Outer Rotor Model:

Fan diameter: 7.3 meters

Power/Voltage: 1.5KW, 380V

Whole machine weight: 97Kg (excluding hoisting, cabinet)

Rated speed: 58 RPM

Noise: <35dB

Maximum coverage open area: diameter 30‑38 meters

Full load air volume: 15880m³/min

Maximum wind speed: 3.2m/s

Selection suggestion: For larger coverage area and more air volume, prioritize inner rotor WM‑5‑73B; for lighter body and lower noise, choose outer rotor WM‑5‑73C.

Key Components Description

Motor (Permanent Magnet Direct Drive)

Inner rotor version: Fully enclosed permanent magnet synchronous motor, with cooling fins natural heat dissipation, long-term working temperature rise only 15‑20℃; IP65 protection, F-class insulation, magnet does not demagnetize or fall off, smooth operation.

Outer rotor version: Patented dust-proof heat dissipation design, not easy to accumulate dust or overheat; dual bearing structure, bottom anti-fall plate installed, blade directly connected to motor end face, small vibration. Two motor common advantages: Maintenance-free, no oil pollution, will not pollute workshop environment.

Blades

Aerospace magnesium aluminum alloy one-piece extrusion molding, heat treatment reinforcement; blade built-in reinforcement ribs, anti-bending, anti-fracture; blade holder matched with 12.9-grade high-strength bolts locking, avoiding blade loosening.

Control System

Exclusive starting algorithm, soft start no jitter; circuit board three-proof treatment, IP68 waterproof wiring terminals, built-in multiple protections, stable equipment operation.

Standard Complete Safety Configuration (both models come with)

1. Main beam thickened clamp plate fixed embracing steel wire rope

2. Four-direction 6mm steel wire rope tension motor, anti-fall, reduce operation vibration

3. 5 blades circular safety chain series connection, single blade falling out will not fly out

4. Anti-fall ring, reinforced protection cover plate; all using 12.9-grade high-strength screws plus thread locking adhesive, prevent vibration loosening

Installation Instructions

Manufacturer complete installation, customer only needs on-site coordination; standard cable 30 meters; site needs to provide aerial work vehicle/elevating platform; suitable for I-beam factory buildings. Product wooden crate packaging, delivery and installation integration.

Business Information

1. 3-year whole machine warranty, on-site service provided during warranty period

2. Quotation includes equipment, complete accessories, transportation, installation, issue 13% VAT special invoice

3. Quotation validity is subject to contract

Cooperative Customers

CRRC, Great Wall Motors, Foton Daimler, Mixue Bingcheng, Nuctech, CSIC, China Railway Construction series factories, Sinotruck Group, as well as numerous project implementations in Anhui development zones.