The centrifugal blower listed here carries voltage AS REQUIRED, blade material cast iron, documented exactly as the manufacturer publishes it. Made by Ningbo Longwell Electric Technology Co., Ltd. (8 years on the platform, factory-assessed). Send your target quantity and destination for a firm quotation with current lead times.
Key Features of This Centrifugal Blower
- Voltage: AS REQUIRED
- Blade Material: cast iron
- Material: Cast Iron
- Warranty: 1 Year
- Certification: CCC
- Place Of Origin: Zhejiang, China
Technical Specifications
| Mounting | Free Standing |
|---|---|
| Voltage | AS REQUIRED |
| Blade Material | cast iron |
| Electric Current Type | AC/DC/EC |
| Warranty | 1 Year |
| After-Sales Service Provided | Free Spare Parts |
| Place Of Origin | Zhejiang, China |
| Brand Name | LONGWELL |
| Certification | CCC |
| Product Name | centrifugal fan 5000 cfm |
| Application | air conditioner , air curtains , cooling |
| Bearing | Ball Bearing / Sleeve bearing |
| Fan Diameter | RLM280 – RLM1000 |
| Material | Cast Iron |
| Shaft Diameter | as required |
| Packaging Details | STANDARD EXPORTING PACKAGE For more details , please contact us , thanks . |
| Port Of Dispatch | NINGBO/SHANGHAI |
| Selling Units | Single item |
| Single Volume | 0 cm³ |
| Single Gross Weight | 0.0 kg |
| Supply Ability | 100000 pieces per Month |
Product Details


- Product Specifications Sheet :


| Unit :mm | ||||||||||||
| Model | Motor | A | B | C | H1 | H2 | L1 | L2 | L3 | L MAX | B1 | B2 |
| RLM280 | Y71–100 | 35 | 396 | 396 | 50 | 248 | 360 | 460 | 465 | 605 | 310 | 346 |
| RLM315 | Y71-112 | 35 | 440 | 440 | 50 | 270 | 360 | 460 | 465 | 615 | 360 | 396 |
| RLM355 | Y71-80 Y90-112 | 35 | 480 | 480 | 50 | 290 | 300 380 | 420 500 | 425 505 | 635 | 400 | 436 |
| RLM400 | Y71-80 Y90-112 | 35 | 520 | 520 | 50 | 310 | 400 500 | 520 620 | 525 625 | 755 | 450 | 486 |
| RLM450 | Y80-112 Y132 | 35 | 590 | 590 | 50 | 345 | 400 500 | 520 620 | 525 625 | 780 | 510 | 546 |
| RLM500 | Y90-112 Y132-160 | 40 | 650 | 650 | 63 | 388 | 440 620 | 600 780 | 605 785 | 950 | 550 | 590 |
| RLM560 | Y90-112 Y132-160 | 40 | 720 | 720 | 63 | 423 | 460 660 | 620 820 | 625 825 | 990 | 610 | 650 |
| RLM630 | Y112 Y132-160 | 45 | 800 | 800 | 63 | 463 | 510 700 | 670 860 | 675 865 | 1025 | 685 | 725 |
| RLM710 | Y112-132 Y160-180 | 50 | 880 | 880 | 80 | 520 | 600 740 | 800 940 | 805 945 | 1125 | 770 | 810 |
| RLM800 | Y132 Y160-180 | 50 | 1000 | 1000 | 80 | 580 | 650 800 | 850 1000 | 860 1010 | 1180 | 850 | 890 |
| RLM900 | Y132 Y160-180 | 50 | 1120 | 1120 | 80 | 640 | 700 900 | 900 1100 | 900 1100 | 1240 | 960 | 1000 |
| RLM1000 | Y160-200 | 50 | 1250 | 1250 | 80 | 705 | 1000 | 1200 | 1210 | 1080 | 1080 | 1120 |


- RLM 630 Performance Curve ( for reference ) :




LONGWELL is a manufacturer of HVAC fans, blowers , motors and components , as well as water purifier pumps and home appliances , established in 1990 , equipped with high advanced testing and production facilities .
Longwell co.,ltd are typically purchased as OEM solutions by manufacturering companies or as aftermarket solutions and replacement parts for HVAC,FCU,FFU,AHU system .
Customers can select form the large variety of preexisting products developed by Longwell including but not limited to :
- AC motorized centrifugal fans & blowers ;
- Brushless DC/EC motorized backward / forward centrifugal fans & blowers ;
- cross flow fan / wheel / blower with motor ( plastic or metal metal ) ;
- axial fans / blades with plastic or metal material ;
- Shaded Pole Motors ;
- Duct fans ;
- Parts or assemble parts or repair parts for HVAC,AHU,FCU,FFU,etc.




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- Other Products :


Ordering and Pricing
- Minimum order quantity: 100 piece
- Volume pricing:
- 100–499 piece: US $40 / piece
- 500+ piece: US $10 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this centrifugal blower?
The standard minimum order quantity is 100 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 centrifugal blower carry?
It is supplied with CCC documentation, which covers the requirements of most import markets. Additional test reports can be issued on request.
Can the centrifugal blower be supplied for my local voltage?
The standard configuration is AS REQUIRED. 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 Ningbo Longwell Electric Technology Co., Ltd., based in China. The company 8 years as a verified Alibaba.com supplier, Trading Company, passed third-party supplier assessment. Browse the full Ningbo Longwell Electric Technology Co., Ltd. range on HVACR Nexus.
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