Question 1

What is a PMSM permanent magnet HVLS industrial fan?

Accepted Answer

A PMSM (Permanent Magnet Synchronous Motor) HVLS fan uses a direct-drive permanent magnet motor instead of a traditional geared induction motor. It

Question 2

What is the diameter and coverage area of this 1380mm HVLS fan?

Accepted Answer

This model has a 1380mm (4.5ft) diameter, delivering an air volume of approximately 5000  square meter /min. A single unit effectively covers 250-380 square meter of floor area, making it ideal for medium-sized workshops, warehouses, and commercial spaces.

Question 3

How does the variable frequency (VFD) control work on this fan?

Accepted Answer

The fan is equipped with an intelligent VFD (Variable Frequency Drive) controller that enables stepless speed adjustment from 0 to maxim

Question 4

What voltage and power supply does this industrial ceiling fan support?

Accepted Answer

The fan supports 220V/380V/460V at 50/60Hz, compatible with single-phase and three-phase power supply worldwide. Custom voltage

Question 5

What is the noise level of this permanent magnet industrial fan?

Accepted Answer

The PMSM direct-drive motor operates at Less than or equal to38 dB, comparable to a quiet library. By eliminating the gearbox and using permanent magnet te

Question 6

What stall protection (anti-stall) function does the fan have?

Accepted Answer

The fan features intelligent stall protection that automatically detects rotor blockage in real time. When an obstruction is detected, the motor immediately stops to prevent overheating and damage, then sends an alarm signal. This ensures motor longevity and safe operation in busy factory environments.

Question 7

What phase-loss protection does this HVLS fan provide?

Accepted Answer

Built-in phase-loss protection continuously monitors the three-phase power supply. If any phase is lost or unstable, the fan automatically shuts down and triggers an alarm to prevent motor burnout. This is critical for industrial facilities with unstable power grids.

Question 8

Can the fan be customized with temperature control function?

Accepted Answer

Yes, we offer a customizable intelligent temperature control option. The fan can automatically adjust its speed based on real-time ambient temperature - increasing speed when the environment is hot and reducing it when cooler. Temperature thresholds and response curves can be fully customized to your specific application.

Question 9

What material are the fan blades made of?

Accepted Answer

The fan blades are made from 6061-T6 aviation-grade aluminum-magnesium alloy, featuring an aerodynamic airfoil profile with internal reinforcement ribs. This provides high strength, excellent corrosion resistance, and long service life while keeping weight minimal for safe ceiling installation.

Question 10

How does the PMSM motor compare to a traditional geared motor?

Accepted Answer

Compared to traditional geared induction motors,PMSM motors offer: 20-30% higher energy efficiency; zero gearbox maintenance - no oil changes or gear replacements needed; noise reduction of 10-15 dB; lighter weight reducing ceiling load requirements;longer service life of 20+years with sealed bearing design.

Question 11

What safety protections are included besides stall and phase-loss protection?

Accepted Answer

The fan includes a comprehensive safety system: anti-fall steel wire rope, safety ring connecting all blade holders to the motor housing, vibration damping device, anti-stripping protection, plus electronic protections-over-voltage, over-current, over-temperature, and abnormal collision detection with auto alarm and shutdown.

Question 12

What is the motor power and energy consumption of this fan?

Accepted Answer

The 1380mm model is equipped with a 0.75/1.1kw PMSM motor, consuming approximately0.75/1.1kw at full load- equivalent to the energy use of a standard household light bulb. One unit can replace 10-20 traditional high-speed fans while using 50% less total energy.

Question 13

Where can this 1380mm permanent magnet HVLS fan be installed?

Accepted Answer

Suitable for workshops, warehouses, logistics centers, gyms, exhibition halls, commercial spaces, supermarkets, waiting rooms, farms, and outdoor venues. The fan supports installation on concrete beams, I-beam steel, and square tube ceiling structures. Multiple units can be grouped for larger spaces.

Question 14

Do you offer OEM and custom manufacturing services?

Accepted Answer

Yes, we provide full OEM/ODM services including custom blade diameter, voltage configuration, color, control system options (WLAN, Bluetooth, 4G, centralized control), logo printing, and packaging. MOQ is flexible - contact us with your specifications for a detailed quote.

Question 15

What is the warranty and delivery time for this industrial fan?

Accepted Answer

We provide a 3-year motor warranty and 20-year expected service life under normal operating conditions. Standard delivery time is 15-25 days for stock models and 25-35 days for custom orders. We support EXW, FOB, CIF, and DDP shipping terms.

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