Industrial Exhaust Fan with Strong Wind Copper Core Motor

• Customization: Available
• Trademark: SNTOOM
• Origin: China
• Model NO.: STFD

Product Description

STFD Series Axial Flow Fan Performance Parameters

Model	Size (inches)	Speed (r/min)	Motor Power (W)	Air Volume (m³/h)	Dimensions (mm) D×D1×L
STFD-100	4"	2800	20	140	98×130×75
STFD-150	6"	2800	40	780	150×190×140
STFD-200	8"	2800	80	1300	250×250×200
STFD-250	10"	2800	100	2100	260×320×155
STFD-350	14"	2800	280	4000	345×390×195

 

Key Features & Technical Specifications:

1. High-Speed Performance:

   • Constant 2800 rpm across all models for uniform airflow

   • Industrial-grade motors (20W to 280W)

2. Scalable Airflow:

   • 5.7x volume increase from STFD-100 (140 m³/h) to STFD-350 (4000 m³/h)

   • Linear power-to-performance ratio

3. Precision Engineering:

   • D (Blade diameter) / D1 (Housing size) / L (Length) optimized for duct compatibility

4. Installation Flexibility:

   • Standard inch sizing (4" to 14") fits most ventilation systems

   • Compact designs (e.g., STFD-100: 75mm length) for space-constrained areas

 

Performance Comparison:

Model	Airflow per Watt (m³/h/W)	Size Efficiency (m³/h per mm of D)
STFD-100	7.0	1.43
STFD-350	14.3	11.59

*The STFD-350 delivers 2x the efficiency of the smallest model.*

 

Recommended Applications:

• STFD-100/150: Electronics cooling, small enclosures

• STFD-200/250: Commercial kitchens, server rooms

• STFD-350: Industrial ventilation, warehouse exhaust