Centrifugal blower — 220V, airflow 80 (m3/h). The complete factory specification follows. Made by Dongguan Mingkai Electromechanical Co., Ltd. (9 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 Centrifugal Blower
- Model Number: LD 004 H21 R12
- Power Source: Electric
- Rated Voltage: 220V
- Voltage: 220VAir Blower
- AirFlow: 80 (m3/h)
- Material: Aluminum
Technical Specifications
| Application | Air Blower |
|---|---|
| Power Source | Electric |
| Rated Voltage | 220V |
| Electric Current Type | AC |
| Motor Type | AC Motor |
| Speed | 3250rpm |
| Material | Aluminum |
| Blade Material | Aluminum |
| Noise Level | 40-60dB |
| Pressure | High Pressure |
| Warranty | 1 Year |
| Customized Support | OEM, 100 |
| Place Of Origin | Guangdong, China |
| Brand Name | MANVAC |
| Model Number | LD 004 H21 R12 |
| Product Name | 0.5hp 1 phase ring blower |
| AirFlow | 80 (m3/h) |
| Frequency | 50/60 Hz |
| Voltage | 220VAir Blower |
| Color | Silver |
| Usage | High Pressure Blowing |
| Weight | 14 Kg |
| Size | 256*246*247 (mm) |
| Selling Units | Single item |
| Single Package Size | 35X33X29 cm |
| Single Gross Weight | 18.000 kg |
Product Details
China Factory 1HP/2HP/3HP Centrifugal Blower Fan Industrial Air Blower
![]() ![]() | Model :LD 004 H21 R12 |
| Power:0.4 (kw) | |
| AirFlow:80 (m3/h) | |
| Vacuum:-120 (mBar) | |
| Pressure:130 (mBar) | |
| Weight:10(kg) | |
| Voltage:200-240(v) single phase | |
| (L*W*H):256*246*247 (mm) | |
| running time:24 hours non stop | |
| stage:1 stage/1 impeller | |
| 100% copper wire,high quality bearings,low noise |








Dimension for 0.5hp 0.4kw LD 004 H21 R12 single phase 220V Ring Blower ,(L*W*H):256*246*247 (mm)


Performance curve :


0.5hp High pressure air blower pump application:








24 hours service online.
you can touch us by email, wechat,what's app,telephone QQ etc


Ordering and Pricing
- Minimum order quantity: 1 set
- Volume pricing:
- 1–2 set: US $120 / set
- 3–49 set: US $110 / set
- 50–99 set: US $81 / set
- 100+ set: US $78 / set
- 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 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 centrifugal blower be supplied for my local voltage?
The standard configuration is 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 Dongguan Mingkai Electromechanical Co., Ltd., based in China. The company 9 years as a verified Alibaba.com supplier, Trading Company, passed third-party supplier assessment. Browse the full Dongguan Mingkai Electromechanical Co., Ltd. range on HVACR Nexus.
See more in Air Handling Units on HVACR Nexus.

























