Fan Manufacturer Customizable 500mm 2800W Ec Fan Backward Curved Centrifugal Fan Ventilation Ahu Fan 0-10V DC/PWM Speed Control (K-EC500-R380-18)
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Product Highlights
- Customizable IP Grade: IP55 and IP68 protection levels available upon request.
- Long Lifespan: Extended service life up to 40,000 hours for reliable operation.
- Step-less Speed Control: Supports 0-10V DC and PWM signals for precise speed adjustment.
- OEM Service Available: Accepts all OEM orders with customized sample production.
- Advanced Technology: Features sine wave and three-phase design to eliminate electromagnetic noise.
- Comprehensive Protection: Includes soft start, overload protection, and motor block protection.
- Global OEM Experience: Over 30 million OEM fans produced serving diverse industries.
- German Engineering: Founded in Germany with 20+ years of industry expertise.
Product Attributes
- Customization
- Available
- Material
- Stainless Steel
- Usage
- for Experiment, for Air Conditioner, for Manufacture, for Refrigerate
- Model NO.
- K-EC500-R380-18
- Flow Direction
- Centrifugal
- Pressure
- Medium Pressure
- Certification
- RoHS, CE, CCC
- Insulation
- B
- Operation Temperature
- -25~50 Degree Centigrade
- Speed Controller
- 0-10V / PWM
- IP Grade
- IP54
- Voltage
- 400V AC
- Transport Package
- Carton Box; Wooden Pallet
- Specification
- 500mm
- Trademark
- Krubo
- Origin
- China
- HS Code
- 8414599050
- Production Capacity
- 10, 000pieces/Year
- Package Size
- 116.00cm * 116.00cm * 1000.00cm
- Package Gross Weight
- 400.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
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Product Description

| Business Type: | Manufacturer / Factory, |
| Main Products: | Centrifugal Fans, Axial Fans, Duct Fan, EC Fan, Cross Flow Fan, Q Motor, etc. |
| Registered Capital: | 2,000,000 RMB |
| Plant Area: | >20,000 square meters |
| Management System Certification: | ISO 9001, QC 080000 |
| Average Lead Time: |
Off Season Lead Time: within 15 workdays Peak Season Lead Time: one month |
FAQ
Q1: Who are you?
A1: KRUBO brand was founded in Germany, bringing together many top technical talents who have been engaged in the fan industry for more than 20 years to build a comprehensive enterprise specializing in the design, development, production and OEM sales of motors and fans. KRUBO is headquartered in Dusseldorf, Germany, and its Chinese headquarters is located in Tianjin. There are two modern chemical plants in Changzhou, China, which is known as the "Hometown of World Motors", to provide OEM solutions for fans for global customers.
Q2: How long is your lead time?
Our samples are all in stock, and the batch delivery period is generally within 14 days. We have two factories in China, with a production workshop of more than 20000m2. Our team has been engaged in the research and development and production of fans for more than 20 years. A large number of automated production equipment and sufficient stock of raw materials can ensure timely and stable delivery.
Q3: What products can I purchase from your side?
Axial flow fan, Centrifugal fan, EC fan, AC Fan, DC Fan, Q Motor, Cross Flow Fan, Duct fan, etc
Q4: What are your advantages compare with others?
Experienced professional team provides customized solutions,
Free fan selection and product simulation structure optimization,
Strong production and delivery capability,
Source manufacturer.
Q5: What else service can you offer to help?
In terms of heat transfer technology: we can provide heat conduction simulation and optimization for small household appliances, air conditioners, new energy, water washing, precision molds and intelligent equipment.
In terms of mechanics: mechanical structure simulation, machine tool structure mechanics optimization, cutting tool structure optimization.
Q6: What are your famous partners?
We are Sch neider's high-quality R&D suppliers and we are rated as Sie mens suppliers top 15%.
Q7: Can you do OEM for me?
A3: We accept all kinds of OEM orders, just contact us and give me your requirement. We will offer you a reasonable price and customize sample product for you ASAP.
Q8: When can I get the quotation?
A7: We usually quote you within 24 hours after we get your inquiry. If you are very urgent to get the quotation. Please call us or tell us in your mail, so that we could regard your inquiry priority.
Q9: How about warranty?
A7: All KRUBO product generally promise you 18 months of warranty, and 24 months for special industries or products, which is much longer than many other brands.
Q10: If you accept small orders?
A1: Small orders acceptable for us. We could delivery sample in very short time for your test and checking.
About Us
KRUBO is a manufacturer of HVAC fans, blowers, motors and components, such as centrifugal fans, axial fans, cross flow fans, single/double forward curved fans, AC/BLDC/ECM motors as well as industrial fan blowers, equipped with high advanced testing and production facilities, automatic welding machines, CNC machining centers, injection machines. With over than 20 years manufacturing experiences, KRUBO is very skilled in designing, developing and manufacturing, and exporting to all over the world.
KRUBO has large products range which could offer customers a more perfectly products solutions by not only producing fans and motors, but also do the perfectly motor and fans matching, and offering good quality and very competitive prices by large scale productions. We expects all our customers have their 100% satisfied solution in fans and motors.
Our mission is to offer the best fans and motors solutions to the customers in applications of Heating, ventilation, and air conditioning, home appliances, and air purifier, floor heating and many other industries.
Welcome more customers from all walks of life to contact us for future business relationships mutual success. Our joint venture will benefits both our parties. We supply the best products at the best prices to ensure our customers have everything they need to fit their budget.
Our Solutions
KRUBO was founded in Germany in 2019, bringing together many top technical talents who have been engaged in the fan industry for more than 20 years to build a comprehensive enterprise specializing in the design, development, production and OEM sales of motors and fans.
KRUBO is headquartered in Dusseldorf, Germany, and its Chinese headquarters is located in Tianjin. There are two modern chemical plants in Changzhou, China, which is known as the "Hometown of World Motors", to provide OEM solutions for fans for global customers.
With advanced EC and AC technology, KRUBO produced wide range of motors and fans for clients all around the world. It includes axial fans, backward curved fans, forward curved fans and blowers. We are devoted to working with all of of our passion to make our products better, as well as spare no effort to meet needs and expectations of our clients.
OEM products include: axial flow fan, backward centrifugal fan, forward centrifugal fan, EC series fan, blower, etc. And it is widely used in ventilation, purification, refrigeration, energy storage new energy, heating, rail transit, bus and other industries.
KRUBO adheres to the principle of "high starting point, high standard and high requirements", takes customer satisfaction as the standard, and "cooperation, win-win and innovation" as the eternal pursuit. Focus on building smart and energy-saving technology, and strive to become the world's first brand of smart, energy-saving and fan.
Since establishment, we produced more than 30 million OEM fans, serving all walks of life with various brands and stable quality. Win unanimous praise from customers! KRUBO sincerely looks forward to cooperating with you!
Our R&D
Our R&D and technical support team committed to combine interactively external motor technology, integrated electronic control circuit and aerodynamic design of fan impeller that satisfied customers' requirements in different applications by innovative fan solutions, with leading experiment equipment, meters, tools in laboratory for motor reliability and fan air performance testing.
We can provide heat conduction simulation and optimization for small household appliances, air conditioners, new energy, water washing, precision molds and intelligent equipment. Additionally, mechanical structure simulation, machine tool structure mechanics optimization, cutting tool structure optimization.
Our advantages
- Our ECM motorized fans′deficiency are 30%-60% higher than the traditional motors.
- Achieved step-less speed control, and communication with customers products.
- Longer life span up to 40, 000hours.
- IP55, IP68 can be customized.
- Sine wave, three phase eliminate electromagnetic-acoustic and lots of other protection functions like soft start, overload, motor block.

About the Supplier
Company Profile
About Us
Founded in Germany in 2019, KRUBO brings together a group of top technical talents who have been engaged in the fan industry for more than 20 years to build a comprehensive enterprise specializing in the design, development, production and OEM sales of motors and fans.
KRUBO is headquartered in Dusseldorf, Germany, and its China headquarters is in Tianjin. KRUBO has two modern factories in Changzhou, China, known as the "hometown of motors in the world", providing fan OEM solutions for global customers.
OEM products cover: Axial flow fans, backward centrifugal fans, forward centrifugal fans, EC series fans, blowers, etc. OEM products are widely used in ventilation, purification, refrigeration, new energy storage, heating, rail transit, bus and vehicle, etc.
KRUBO adheres to the principle of "high starting point, high standard and high demand", and takes customer satisfaction as the standard, "cooperation, win-win, innovation" as the eternal pursuit.
KRUBO focuses using advanced manufacturing technics, striving to become the world's first class brand of smart, energy-saving fan.
Since establishment, KRUBO has supplied all walks of life with more than 30 million OEM fans, winning unanimous praise from customers by stable quality and excellent performance!
Our R&D
Our R&D and technical support team committed to combine interactively external motor technology, integrated electronic control circuit and aerodynamic design of fan impeller that satisfied customers' requirements in different applications by innovative fan solutions, with leading experiment equipment, meters, tools in laboratory for motor reliability and fan air performance testing.
We can provide heat conduction simulation and optimization for small household appliances, air conditioners, new energy, water washing, precision molds and intelligent equipment. Additionally, mechanical structure simulation, machine tool structure mechanics optimization, cutting tool structure optimization.
Our advantages
· Our ECM motorized fans′ Deficiency are 30%-60% higher than the traditional motors.
· Achieved step-less speed control, and communication with customers products.
· Longer life span up to 40, 000hours.
· IP55, IP68 can be customized.
· Sine wave, three phase eliminate electromagnetic-acoustic and lots of other protection functions like soft start, overload, motor block.
About Our Factory & Business Background
- Address
- Rm. 203, Bd. 1, No. 38, Fagang South Road, Shuanggang, Jinnan District, Tianjin, China
- Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment, Money Gram, to be negotiated
- International Commercial Terms(Incoterms)
- FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA
- Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays - Nearest Port
- Tianjin, China
Our Production Capability & Technical Expertise
- Main Products
- Cooling Fan, Motor, Centrifugal Fan, Axial Flow Fan, Refrigeration Equipment, Cross Flow Fan, Compact Axail Fan, AC Fan, Ec Fan, Gas Blower
Our Industry Experience & Global Business Record
- Export Year
- 2019-03-27
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- Who are you?
- KRUBO brand was founded in Germany, bringing together many top technical talents who have been engaged in the fan industry for more than 20 years to build a comprehensive enterprise specializing in the design, development, production and OEM sales of motors and fans. KRUBO is headquartered in Dusseldorf, Germany, and its Chinese headquarters is located in Tianjin. There are two modern chemical plants in Changzhou, China, which is known as the 'Hometown of World Motors', to provide OEM solutions
- How long is your lead time?
- Our samples are all in stock, and the batch delivery period is generally within 14 days. We have two factories in China, with a production workshop of more than 20000m2. Our team has been engaged in the research and development and production of fans for more than 20 years. A large number of automated production equipment and sufficient stock of raw materials can ensure timely and stable delivery.
- What products can I purchase from your side?
- Axial flow fan, Centrifugal fan, EC fan, AC Fan, DC Fan, Q Motor, Cross Flow Fan, Duct fan, etc
- What are your advantages compare with others?
- Experienced professional team provides customized solutions, Free fan selection and product simulation structure optimization, Strong production and delivery capability, Source manufacturer.
- What else service can you offer to help?
- In terms of heat transfer technology: we can provide heat conduction simulation and optimization for small household appliances, air conditioners, new energy, water washing, precision molds and intelligent equipment. In terms of mechanics: mechanical structure simulation, machine tool structure mechanics optimization, cutting tool structure optimization.
- What are your famous partners?
- We are Sch neider's high-quality R&D suppliers and we are rated as Sie mens suppliers top 15%.
- Can you do OEM for me?
- We accept all kinds of OEM orders, just contact us and give me your requirement. We will offer you a reasonable price and customize sample product for you ASAP.
- When can I get the quotation?
- We usually quote you within 24 hours after we get your inquiry. If you are very urgent to get the quotation. Please call us or tell us in your mail, so that we could regard your inquiry priority.
- How about warranty?
- All KRUBO product generally promise you 18 months of warranty, and 24 months for special industries or products, which is much longer than many other brands.
- If you accept small orders?
- Small orders acceptable for us. We could delivery sample in very short time for your test and checking.
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