Table selection
Model diameter, rpm, mass, motor power and voltage/current alternatives.
EQUIPMENT / EQUIPMENT FAMILY
Bigfans Fengrui SFFCA PMSM ceiling fans
Use model mass, speed and mounting evidence; unconditioned circulation volume and a diagram ambiguity do not approve the room installation.
From Bigfans Wuhan · Large-space air-movement equipment
Individual product research · HVACDeck Editorial · Sources checked 2026-10-11
Select suspended PMSM air movement around real obstructions
Bigfans’ Fengrui SFFCA family is described as a permanent-magnet synchronous-motor ceiling fan, with five diameters from 2.5 to 7.3 m. Its table supplies rotational speed, mass, motor power and voltage/current alternatives. SFFCA73 lists 7.3 m, 55 rpm, 127 kg and 1.5 kW; smaller SFFCA25 lists 2.5 m, 140 rpm, 35 kg and 0.4 kW. The nominal airflow row is in m³/min, without a stated measurement or installed pressure/room condition.
The original mounting diagram includes obstruction, travelling-crane and drop-rod notes. Its left text labels 2.5 m as building height, while the drawn dimension runs from ground to the blade plane; this needs a current issued installation drawing. Approve structural mounting and actual occupied-zone air delivery before choosing diameter. The series does not supply refrigeration capacity or proof of outdoor-air ventilation, even where circulation is marketed as cooling comfort.
Published parameters and their scope
This is an equipment family; its range does not identify one orderable configuration.
- Family designation
- SFFCA25 / 38 / 50 / 62 / 73
Swipe the table, or focus it and use arrow keys, to read the conditions and sources.
| Parameter | Published value | Conditions and evidence |
|---|---|---|
| Large model reference | SFFCA73: 7.3 m; 55 rpm; 127 kg; 1.5 kW motor | Motor power, not a measured installed energy-saving percentage. Source |
| Small model reference | SFFCA25: 2.5 m; 140 rpm; 35 kg; 0.4 kW | Nominal family choices; support and performance evidence required for the order. Source |
| Published airflow row | SFFCA73 15,850 m³/min; SFFCA25 6,500 m³/min | No measurement method or installed room/pressure basis; not outdoor-air exchange. Source |
| Voltage/current choices | SFFCA73: 3.5 A / 380 V or 5.5 A / 220 V | Source alternatives; phase, controller input and startup protections unprovided. Source |
| Original installation notes | Obstruction clearance ≥0.2 m; crane-to-beam ≥0.8 m; rod range 0–6 m | Supplier sketch only. Text/arrow scope for 2.5 m differs; obtain issued site-specific drawing. Source |
| Claim boundaries | PMSM, gear-free maintenance wording, 280 N·m and 35% airflow increase promoted | No exact torque-model basis, matched comparison, complete service procedure or independent report reviewed. Source |
Selection and application review
Evaluate delivered room air rather than an exchange rate
Provide ceiling/support height, floor plan, workstations, racks and obstructions, together with the desired occupied-zone air-speed range. Obtain the selected diameter/speed layout and evidence for the actual room conditions. The table’s very large m³/min values cannot be used as outdoor-air supply or a duct-pressure selection.
Define comfort objectives separately from refrigeration and contaminant removal. No source temperature/humidity test establishes a fixed room-temperature reduction. Compare options through measured or agreed air distribution and input rather than an invented cooling tonnage.
Resolve the original mounting diagram before fabrication
The source sketch identifies obstruction clearance of at least 0.2 m and travelling-crane-to-beam spacing of at least 0.8 m, with a 0–6 m rod range. These notes do not settle the actual building loads, crane envelope or complete installed clearance. Supply a site drawing and obtain the selected mounting approval from the responsible parties.
The left label calls 2.5 m building height but the dimension arrow goes to the blade plane. Do not silently choose an interpretation or treat it as a universal approved minimum. Close blade plane, occupied routes, fixtures and service access with a current issued drawing.
Select motor, controller and retention as one order
Use the actual mass and rotational speed in support/drawing review; do not infer all dynamic loads from listed mass alone. Obtain hub/blade retention, supports and current installation instructions. The source image shows a suspended assembly and cable arrangement but provides no independently verified structural safety result.
Choose the 220 or 380 V configuration and obtain phase, wiring, controller demand, startup limits and protection requirements. Central/zone/temperature/humidity control is advertised, but no protocol or included sensor schedule is supplied. Confirm included options before integrating building controls.
Define service and acceptance at the selected operating range
The source calls the gear-free arrangement maintenance-free and claims long motor life. Obtain the actual inspection, fastening, cleaning and controller/bearing service requirements; absence of a gearbox does not establish that an overhead assembly needs no inspections. No independent ten-year-life result was reviewed.
Accept current drawings, model/BOM and applicable documentation, then verify direction/speed, electrical/control behaviour, occupied-zone delivery and agreed vibration/sound at actual operation. The 280 N·m and 35% improvement statements have no reviewed model/baseline scope. Price, delivery and installed energy savings remain unknown.
Site approval
Issued support/clearance drawing and actual room-air delivery.
Evidence still required
Input/test basis, control file, retention and service documentation.
Sources and review scope
Compiled by HVACDeck Editorial. Source review identifies what the publication states; it is not an independent performance test or certification.
- Official Fengrui five-model pageChecked 2026-10-11 · Complete series text/table read; flow units and voltage alternatives preserved.
- Original installation diagramChecked 2026-10-11 · Full original image visually read; 2.5 m text/arrow mismatch retained as a drawing question.
- Original suspended fan photographChecked 2026-10-11 · Original hub/blade/cable arrangement visually inspected; selected mounting safety not established.
Editorial method and corrections · Report a detail with this page URL
Turn the evidence into an enquiry
Send the manufacturer your required duty, installation conditions and the unresolved items identified in this brief.
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