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Lead Time: Usually ship in 5 days, Ship international
Base in Hongkong, Ship from HongKong
Delivery time around 5-8 days by UPS
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Professional 2825W industrial centrifugal fan with 400V operation, 1780 RPM speed, and 40kg robust construction. German-engineered by EBMPAPST for exceptional durability exceeding 10 years, ultra-quiet performance, optimized energy efficiency, and superior airflow for demanding industrial and commercial applications.
German-engineered EBMPAPST construction with 40kg industrial-grade design ensures reliable, long-term operation exceeding 10+ years in demanding environments. Premium materials, reinforced housing with M3G150-FF motor, industrial-grade bearings, and precision-balanced backward-curved impeller guarantee exceptional lifespan for continuous operation in industrial applications.
Advanced centrifugal design provides exceptionally quiet operation at 1780 RPM. Precision-engineered backward-curved impeller blades with optimized airfoil profiles minimize turbulence and aerodynamic noise generation. Special vibration-damping mounts and precision dynamic balancing ensure low-noise performance suitable for commercial buildings, office environments, and noise-sensitive industrial applications.
Optimized 2825W power rating with only 4.3A current draw provides exceptional energy efficiency for industrial airflow requirements. Advanced EBMPAPST motor technology with M3G150-FF motor maximizes efficiency, reducing operational costs significantly. 400V industrial voltage operation ensures compatibility with industrial power systems while minimizing energy consumption and operating expenses.
Efficient centrifugal design generates substantial airflow at 1780 RPM for effective heat dissipation and ventilation. The backward-curved impeller design provides optimal airflow characteristics with 70×70×65cm compact footprint, delivering superior cooling performance ideal for applications requiring efficient air movement through systems with moderate pressure requirements.
The K3G500-PB33-01/F01 centrifugal fan is engineered for diverse industrial and commercial applications requiring reliable, efficient airflow solutions with minimal noise and optimal performance.
| Model Number | K3G500-PB33-01/F01 |
| Motor Number | M3G150-FF |
| Condition | Original new from manufacturer |
| Manufacturer | EBMPAPST GERMANY |
| Product Type | Centrifugal Fan BACKWARD CURVED |
| Rated Power | 5700 W OPTIMIZED POWER |
| Rated Voltage | 400 V INDUSTRIAL VOLTAGE |
| Frequency | 50/60 Hz |
| Rated Current | 9.0 A LOW CURRENT |
| Speed | 2250 rpm OPTIMIZED SPEED |
| Net Weight | 40 kg INDUSTRIAL GRADE |
| Shipping Dimension | 70 × 70 × 65 cm COMPACT DESIGN |
| Country of Origin | Germany |
| HS Code | 8414599099 |
| Warranty | 1 Year Manufacturer Warranty |



Shipping, Warranty & ServiceShipping Hub: Dispatched from Hong Kong for efficient global distribution.
Processing Time: Orders are processed and ready to ship within 5 business days.
Express Delivery: Estimated delivery in 3-8 business days worldwide via DHL or UPS.
Warranty: Backed by a full 1-year manufacturer's warranty from EBMPAPST.
Product Guarantee: We sell only genuine EBMPAPST products guaranteed to meet all factory specifications for fit, form, and function.
Customer Satisfaction: Enjoy a 30-day return policy and our commitment to 100% customer satisfaction.
For Large Quantity Inquiries: Please contact our sales team at sales@axialfanz.com for volume pricing and custom quotations for EBMPAPST products.
A: The 40kg industrial-grade construction with M3G150-FF motor provides exceptional durability for continuous operation in demanding environments. German engineering excellence by EBMPAPST includes premium industrial-grade ball bearings with extended lubrication intervals, reinforced steel housing, thermally optimized motor components rated for continuous duty, and corrosion-resistant materials. The backward-curved centrifugal impeller design minimizes vibration and mechanical stress, extending component lifespan. The compact 70×70×65cm footprint with robust construction withstands industrial environmental challenges including temperature variations, humidity, and particulate exposure. This combination of quality materials, precision engineering, and EBMPAPST's manufacturing excellence ensures reliable performance exceeding 10 years in applications requiring consistent, efficient airflow with moderate pressure requirements.
A: The advanced backward-curved centrifugal design at 2250 RPM provides exceptionally quiet operation through multiple engineering features. Precision-engineered backward-curved impeller blades with optimized airfoil profiles and careful tip clearance design minimize turbulence and aerodynamic noise generation. The 2250 RPM operating speed represents an optimal balance between performance and noise levels - fast enough for effective airflow but slow enough to minimize noise. Special vibration-isolating motor mounts, precision dynamic balancing to exacting standards, and noise-damping materials in the housing reduce mechanical noise transmission. The compact 70×70×65cm design incorporates optimized airflow paths that reduce turbulence. These features combine to deliver quiet operation suitable for commercial buildings, office environments, medical facilities, and noise-sensitive industrial applications where both performance and acoustic comfort are important.
A: The optimized 5700W power rating with 9.0A current draw at 400V represents advanced energy efficiency for industrial and commercial applications. EBMPAPST's M3G150-FF motor incorporates high-efficiency windings, optimized magnetic circuits, and premium materials that minimize electrical losses. The backward-curved centrifugal impeller design provides inherently better efficiency than forward-curved designs, especially in the mid-pressure range typical of many applications. At 400V industrial voltage, the current draw is minimized (only 9.0A), which reduces line losses and improves overall system efficiency. When compared to less efficient alternatives, this fan can deliver the same airflow and pressure with approximately 20-25% lower energy consumption. The 2250 RPM operating speed is optimized for efficiency, avoiding the higher energy consumption associated with higher speeds while maintaining excellent performance. This combination delivers significant operational cost savings over the fan's 10+ year lifespan.
A: The compact 70×70×65cm centrifugal fan with 5700W power and 2250 RPM operation provides unique advantages for space-constrained applications. The compact dimensions make it ideal for installations where space is limited but performance cannot be compromised. The backward-curved impeller design provides excellent efficiency across a wide operating range, making it versatile for various applications. The 5700W power rating delivers substantial airflow capacity for its size, while the 400V operation ensures compatibility with industrial power systems. For commercial HVAC systems, it provides efficient air movement through ductwork with minimal space requirements. For industrial applications, it offers reliable performance in equipment cooling and ventilation systems where space is at a premium. For specialized applications like medical equipment or laboratory systems, the compact size allows integration into existing designs without major modifications. These features, combined with EBMPAPST's German engineering quality, make it an ideal solution for applications requiring reliable, efficient performance in limited spaces.
Contact our technical specialists for application-specific recommendations, performance data, or volume pricing for your industrial centrifugal fan requirements.
Request Technical Support Request Volume Pricing
Gurantee genuine products from manufacturer
One Year Warranty
AXIALFAN One Year Warranty protects your purchase from Failure during normal use Up to one Year from the date of your purchase.
One Year Coverage from the date of Purchase - Included in the items Price 100% Coverage for Parts and Labor - No deductibles - Included in the items price Items repairs or the full price is refunded to you if we are unable to fix or repair One Year Warranty covers ALL items listed on our website Buyer pay shipping fees at your side when return products, seller pay replacement products' shipping fees.How can I get AXIALFAN One Year Warranty?
AXIALFAN One Year Warranty is included in the items price, you do not need to buy extra protection plan or additional warranties.
How do I purchase a AXIALFAN One Year Warranty?
When you complete the purchase from our website your warranty will be included with the purchase.
How long does coverage last?
Coverage is one year from the date of your purchase
When does coverage start?
Your coverage begins on the date of purchase. If the item you receive is not as it was described, you can return it for a full refund during the first 30 days from payment.
How much is covered?
For replacement payments: You are covered up to the maximum value you paid for the item. Once that amount has been paid out, your warranty is considered fulfilled.
For repairs: You're covered for multiple repairs, up to the maximum value of your item. Once the cost of repairs meets the full purchase price of the item, your warranty is considered fulfilled.
Software: Software issues are not covered.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

