The type industrial air extractor listed here carries voltage customized, 380V/220V, blade material Stainless Steel, documented exactly as the manufacturer publishes it. Made by Zhuji Ruifeng Import & Export Co., Ltd. (3 years on the platform, typical reply ≤6h). Quantity and destination market determine the final price — tell us both for a firm quote.
Key Features of This Type Industrial Air Extractor
- Model Number: Type 300, Type 400, Type 500, Type 600, Type 700
- Voltage: customized, 380V/220V
- Blade Material: Stainless Steel
- Speed: 10m/s(32.81ft/s)
- Warranty: 2 Years
- Place Of Origin: Zhejiang, China
Technical Specifications
| Voltage | customized, 380V/220V |
|---|---|
| Speed | 10m/s(32.81ft/s) |
| Blade Material | Stainless Steel |
| Mounting Type | Wall Fan |
| Warranty | 2 Years |
| After-Sales Service Provided | Online support |
| Customized Support | OEM, ODM, OBM |
| Place Of Origin | Zhejiang, China |
| Brand Name | Ruilinfan |
| Model Number | Type 300, Type 400, Type 500, Type 600, Type 700 |
| Product Name | Exhaust Fan |
| Type | Axial Flow Fan |
| Installation | Wall Mounted Installation |
| Selling Units | Single item |
| Single Package Size | 70X70X32 cm |
| Single Gross Weight | 17.0 kg |
Product Details
Negative pressure fan uses the cooling principle of air convection and the negative pressure air exchange, air is discharged to outdoor which makes the indoor air pressure drop, indoor air becomes thinner, forming a negative pressure zone, then outdoor air, due to the air pressure difference compensates into the room, so that the indoor stuffy gas can be quickly forced to discharge outdoor.
By this way,cooling effect can reach 90%-97%.Thus,negative pressure fan has the advantages of less investment, low energy consumption, significant cooling effect, etc.


A galvanized sheet metal negative pressure fan is a common type of negative pressure fan whose housing is usually made of iron or other metal materials. It achieves the effect of ventilation and air exchange by drawing in air and discharging it outside. The galvanized sheet metal negative pressure fan is widely used in ventilation and exhaust in industrial production workshops, agricultural farming, commercial buildings, and other places.




1. Frame: 80g/m2 hot galvanized iron plate, thickness can do 0.6/0.7/0.8mm.
2. Net: galvanized wire spray, Column: hot galvanized iron plate.
3. Shutter: 180g/m2 hot galvanized iron, thickness 0.3/0.4mm.
4. Motor: China brand, meet national standard, 100% pure copper.
5. Blade: stainless steel material with large air volume, low noise, non-deformation, no broken.
![]() | Model size | Type 700 diret coupled |
| Body size | 70*70*31cm | |
| Fan blade diameter | 585mm | |
| Blade rotate speed | 1400rpm | |
| Motor speed | 1400rpm | |
| Air volume(m³/h) | 10000 | |
| Noise level(db) | ≤60 | |
| Input power | 250w | |
| Voltage (can customized) | 220V/380V/50Hz | |
| MOQ | 1 set |






For small size direct coupled type, we always send in complete way not by SKD:


Zhuji Ruilin Ventilation Equipment Co., Ltd, located in the historical site of Yue (state) with the richest Yuyue culture, is a professional and efficient enterprise with complete set of high-tech equipment, covering automatic decoiler machine, New CNC Bending Machine, laser cutting machine, as well as advanced louver forming machine.
To date, Ruilin Ventilation has owned 15 new professional assembly lines, with a daily production capacity of up to 800 sets of brand-new upgraded machines. Additionally, advanced production equipment provide strong support for product quality. With strong production capacity, Ruilin Ventilation has continuously broken through growth barriers. Its high-quality negative-pressure air fan, complete standard accessories, and continuous stable supply have achieved great advantages in application fields and won recognition from customers and industries.Ten year wind and rain roads makes quality assurance
Carefully selecting high-quality raw materials to ensure high-performance and high-quality products.Over one hundred employees work together to provide a one-stop production and processing service in the shortest possible time to achieve the maximum and best work. Customer satisfaction is our ultimate goal.
Ruilin Ventilation is the best choice for negative-pressure air fan. For ten years, Ruilin Ventilation have focused on quality production, earned customers' trust and have been leading in sales. Their one-stop service not only saves time and cost, but also provides professional and efficient ventilation equipment.
Ruilin Ventilation will continue to create new professional negative pressure fans and accessories. It will continue to courageously pursue perfect, and manufacture advanced equipment with the most professional tools, while satisfying customer demands with the highest level of efficiency in service.










The galvanized sheet metal exhaust fan under Ruilin products has the following advantages:
1. Low noise: Compared with other air purification equipment, Rui Lin's galvanized sheet metal negative pressure fan has a low operating noise, which will not affect people's normal life and work.
2. Energy saving and environmental protection: Rui Lin galvanized sheet metal negative pressure fan adopts low power pure copper motor, which is stable and reliable and can significantly reduce energy consumption and operating costs, and also has the characteristics of energy saving and environmental protection.
3. Easy to maintain: The simple structure and removable parts of the galvanized sheet metal negative pressure fan make it easy to carry out daily cleaning and maintenance and prolong the service life.
4. Reliable quality: Rui Lin galvanized sheet metal negative pressure fan, with thickened hot dip galvanized shell, pure copper motor, large air blade, invisible heavy hammer, and high-quality rubber belt, has reliable quality, strong wind power, good quality, and high-cost performance.
1) Motor warranty for two years.
2) Compressor brands vary according to model and actual needs
During the warranty period, machines which cannot run due to quality problems,Choose the following options.
1) During the two-year warranty period, non-human factors cause product quality problems, and provide parts replacement and repair and maintenance services.
2) In addition to the ty-year warranty period, parts replacement and repair and maintenance services are provided at the user's expense.
Efficiency creates the brand, integrity creates the future.
We welcome the public, the friend attends personally for win-win cooperation!
Rui Lin's carefulness makes the customers be assured.
Ordering and Pricing
- Minimum order quantity: 1 set
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this type industrial air extractor?
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 2 Years warranty. Spare parts and technical support remain available after the warranty period.
Can the type industrial air extractor be supplied for my local voltage?
The standard configuration is customized, 380V/220V. 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 Zhuji Ruifeng Import & Export Co., Ltd., based in China. The company 3 years as a verified Alibaba.com supplier, operates its own manufacturing. Browse the full Zhuji Ruifeng Import & Export Co., Ltd. range on HVACR Nexus.
See more in Wall Exhaust Fans on HVACR Nexus.



















