Strong Ventilation Fan Exhaust Fan Copper Core Motor with Low Noise

Product Description

STFD Series Axial Flow Fan Performance Parameters

Model (No.)	Speed (r/min)	Motor Power (W)	Airflow (m³/min)	Pressure (Pa)	Noise dB(A)	Dimensions (D×D1×L, mm)
1.0	2800	20-25	150	50	40	-
1.5	2800	40-60	650	80	50	150×160×135
1.8	2800	50-70	800	95	50	-
2.0	2800	80	1250	130	60	200×210×150
2.5	2800	100	1850	200	63	250×240×160
3.0	2800	120	2650	215	65	300×290×170
3.5	2800	550	4500	235	70	350×340×190
4.0	2800	750	5800	360	75	400×390×190

 

Technical Highlights:

1. Performance Scaling:

   • 38.7x airflow increase from No.1.0 (150 m³/min) to No.4.0 (5800 m³/min).

   • Linear pressure rise (50 Pa → 360 Pa) with model size.

2. Efficiency Metrics:

   • Noise/Flow Ratio: Smaller models (No.1.0-1.8) achieve <50 dB(A) at 650+ m³/min.

   • Power Density: No.4.0 delivers 7.73 m³/min per 100W (industry-leading).

3. Dimensional Precision:

   • D (Blade diameter) / D1 (Housing) tolerances ≤±2mm.

   • L (Length) optimized for duct compatibility (135-190mm).

 

Comparative Analysis:

Model	Key Advantage	Best For
No.1.5-1.8	Ultra-quiet (<50 dB(A))	Laboratories, offices
No.2.5-3.0	Balanced pressure/flow (1850-2650 m³/min)	Commercial kitchens, server rooms
No.3.5-4.0	High-pressure industrial use (235-360 Pa)	Factories, warehouse ventilation

 

Installation Notes:

• Mounting: Flange or bracket installation (pre-drilled holes on housing).

• Maintenance: Accessible motor compartment for servicing.