This portable ventilation blower is published with the manufacturer’s full specification — blade material Aluminum Impeller, model number STF 3.5#. Made by Zhejiang Qiba Fan Technology Co., Ltd. (4 years on the platform, factory-assessed). For a binding price and lead time, send the volume you need and where it ships to.
Key Features of This Portable Ventilation Blower
- Model Number: STF 3.5#
- Voltage: Other
- Blade Material: Aluminum Impeller
- Warranty: 1 Year
- Place Of Origin: Zhejiang, China
- Electric Current Type: AC
Technical Specifications
| Voltage | Other |
|---|---|
| Blade Material | Aluminum Impeller |
| Electric Current Type | AC |
| Mounting Type | Free Standing |
| Warranty | 1 Year |
| After-Sales Service Provided | Video Technical Support |
| Customized Support | ODM, OBM |
| Place Of Origin | Zhejiang, China |
| Brand Name | Qiba fan |
| Model Number | STF 3.5# |
| Country Of Origin | CN |
| Support Customization | OEM,ODM ,OBM |
| Name | SF Axial flow fan |
| Motor | Pure copper motor |
| Advantage | Oil and moisture resistant |
| Electrical Machinery | High temperature resistant material |
| Insulation Level | Class B |
| Fan Function | Ventilation, dust removal and noise reduction |
| Usage Environment | Hotels, residences, warehouses, workshops, etc |
| Number Of Blades | 4 |
| Selling Units | Single item |
| Single Package Size | 48X48X30 cm |
| Single Gross Weight | 25.0 kg |
Product Details






Product details(产品详细介绍) | ||||||||
Purpose 用途 | Strict product features: compact structure, small portable size, easy portability, high efficiency, stable operation, long service life, energy-saving and efficient mobile Applicable scope: Tunnel ventilation and heat dissipation, limited space operation in basement ventilation, ventilation and deodorization of factory workshops and breeding farms, underground well and alley engineering in ship cabins, commercial activity areas that cannot be dusted, construction sites for new house decoration and ventilation, industrial and mining enterprises, cave tunnels, welding workshops, etc | |||||||








YN5-47 Boiler fan parameters | ||||||||
item | Speed | Power | Air Flow | Volt | ||||
r/min | Kw | m³/h | (V) | |||||
STF2-2 | 2800 | 180W | 1350 | 220/380 | ||||
STF2.2-2 | 2800 | 250W | 2150 | 220/380 | ||||
STF3-2 | 2800 | 370W | 3050 | 220/380 | ||||
STF3-2 | 2800 | 550W | 3500 | 220/380 | ||||
STF3.5-2 | 2800 | 750W | 6050 | 220/380 | ||||
STF4-4 | 1450 | 550W | 9300 | 220/380 | ||||
STF4-2 | 2800 | 1500W | 10050 | 220/380 | ||||
STF5-4 | 1450 | 750W | 11000 | 220/380 | ||||
STF5-2 | 2800 | 2000W | 17200 | 220/380 | ||||
STF4-4 | 1450 | 750W | 10000 | 220/380 | ||||
STF5-4 | 1450 | 1100W | 11800 | 220/380 | ||||
























What information do ineed to provide in order to get a quotation?
How To Order?
When will make delivery ?
—Sample Order: 1-3 days after receipt of the full payment.
—Stock Order: 3-7days after receipt of the full payment
—OEM Order: 12-30days after receipt of the deposit.
After-sales Service.
How do you control the product's quality?


Ordering and Pricing
- Minimum order quantity: 1 set
- Volume pricing:
- 1–9 set: US $65 / set
- 10–49 set: US $62 / set
- 50+ set: US $55 / set
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this portable ventilation blower?
The standard minimum order quantity is 1 set. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.
Can the portable ventilation blower be supplied for my local voltage?
The standard configuration is Other. Alternative voltage and frequency builds are available when specified at the time of order.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Zhejiang Qiba Fan Technology Co., Ltd., based in China. The company 4 years as a verified Alibaba.com supplier, operates its own manufacturing, passed third-party supplier assessment. Browse the full Zhejiang Qiba Fan Technology Co., Ltd. range on HVACR Nexus.
See more in Axial Flow Fans on HVACR Nexus.
























