This powerless roof ventilation fan is published with the manufacturer’s full specification — voltage No, air flow 1800cbm/h. Made by Qingzhou Yongsheng Machinery Co., Ltd. (9 years on the platform, typical reply ≤5h). Quantity and destination market determine the final price — tell us both for a firm quote.
Key Features of This Powerless Roof Ventilation Fan
- Model Number: 300/400/500/600/800
- Voltage: No
- Air Flow: 1800cbm/h
- Blade Material: No
- Warranty: 1 Year
- Certification: ce
Technical Specifications
| Mounting | Roof Fan |
|---|---|
| Voltage | No |
| Blade Material | No |
| Warranty | 1 Year |
| After-Sales Service Provided | Free Spare Parts |
| Customized Support | OEM |
| Place Of Origin | Shandong, China |
| Brand Name | Yongsheng |
| Model Number | 300/400/500/600/800 |
| Fan Blade | Stainless Steel/Color Plate |
| Fan Bldae Quantity | 28pcs |
| Air Flow | 1800cbm/h |
| Application | Industry |
| Type | Other |
| Certification | ce |
| Selling Units | Single item |
| Single Volume | 0 cm³ |
| Single Gross Weight | 0.0 kg |
Ordering and Pricing
- Minimum order quantity: 10 piece
- Volume pricing:
- 10+ piece: US $20 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this powerless roof ventilation fan?
The standard minimum order quantity is 10 piece. 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.
Which certifications does this powerless roof ventilation fan carry?
It is supplied with ce documentation, which covers the requirements of most import markets. Additional test reports can be issued on request.
Can the powerless roof ventilation fan be supplied for my local voltage?
The standard configuration is No. 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 Qingzhou Yongsheng Machinery Co., Ltd., based in China. The company 9 years as a verified Alibaba.com supplier, operates its own manufacturing. Browse the full Qingzhou Yongsheng Machinery Co., Ltd. range on HVACR Nexus.
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