SKU: 62093924014

RD31S-4DW.6Q.AL ZIEHL-ABEGG Centrifugal Fan 3~400V 3.9kW 11.0/6.4A 1300rpm

$1291.05 $1434.50
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Description

RD31S-4DW.6Q.AL ZIEHL-ABEGG Centrifugal Fan 3~400V 3.9kW 11.0/6.4A 1300rpmZIEHL ABEGG RD31S 4DW. 6Q. AL Centrifugal Fan 3. 9kW German Made ZIEHL ABEGG RD31S 4DW. 6Q. AL Centrifugal Fan 3. 9kW 400V 1300rpm GERMAN ENGINEERING High performance industrial centrifugal fan engineered for extreme durability (>10 years), whisper quiet operation, ultra low energy consumption, and powerful high volume airflow. Perfect for heavy duty HVAC, industrial ventilation, cooling systems, and critical thermal management. Download Official

ZIEHL-ABEGG RD31S-4DW.6Q.AL Centrifugal Fan | 3.9kW German Made

ZIEHL-ABEGG RD31S-4DW.6Q.AL Centrifugal Fan

⚡ 3.9kW | 400V | 1300rpm | GERMAN ENGINEERING

High-performance industrial centrifugal fan engineered for extreme durability (>10 years), whisper-quiet operation, ultra-low energy consumption, and powerful high-volume airflow. Perfect for heavy-duty HVAC, industrial ventilation, cooling systems, and critical thermal management.

📄 Download Official Datasheet (PDF)

Core Performance Advantages

🏭🔩
10+ Years Industrial Durability
German-engineered by ZIEHL-ABEGG with robust 41kg heavy-duty construction, premium sealed bearings, and reinforced housing. Proven to operate reliably for over a decade in the harshest industrial environments.
🔇🍃
Ultra-Quiet Operation
Aerodynamically optimized centrifugal impeller and precision dynamic balancing deliver exceptionally low noise levels. Ideal for noise-sensitive facilities despite high power output.
⚡💚
Energy Saving / Low Power Draw
Efficient 3.9kW motor with only 11.0/6.4A current draw at 400V three-phase. Exceptional energy efficiency for continuous 24/7 industrial operation.
💨🌊
High Airflow & Superior Cooling
Optimized operation at 1300 rpm generates exceptional centrifugal airflow with high static pressure. Provides outstanding heat dissipation for large industrial equipment and heavy machinery.

Applications Across Industries

The RD31S-4DW.6Q.AL is a versatile solution for demanding ventilation and cooling challenges across global markets.

🏭Industrial Ventilation
❄️Commercial Air Conditioning
🧊Industrial Refrigeration
🔥Heating Systems
⚙️Electrical Automation
🔌Frequency Converters / VFD
🚄Rail Transportation HVAC
🏢HVAC (FFU/AHU) Systems
🌫️Air Purification
🚗New Energy Vehicles
🏗️Process Cooling
💻Data Center Cooling
⚡Power Plant Ventilation
🏥Hospital HVAC
🔬Laboratory Ventilation
📡Telecom Equipment Cooling
🔋Battery Storage Systems
🌾Agricultural Ventilation
🚢Marine & Shipboard HVAC
🏗️Cooling Towers

Technical Specifications

Model Number RD31S-4DW.6Q.AL Genuine
Article No: 121303 | Motor No: RZ31S-4DW.6Q.AL
Manufacturer ZIEHL-ABEGG Made in Germany
Product Type Centrifugal Fan High Static Pressure
Condition Original new from manufacturer
Rated Power 3.9 kW Heavy Duty Industrial Grade
Voltage 3~400V / 50/60Hz Three Phase
Rated Current 11.0 A / 6.4 A
Speed 1300 rpm
Frequency 50/60Hz
Net Weight 41 kg
Shipping Dimension 50 × 50 × 50 cm
HS Code 8414599099
Country of Origin Germany
Warranty 1 year manufacturer warranty
Ship From Hong Kong
Lead Time 5 business days
Delivery Time 3-8 business days worldwide (DHL/UPS)
Guarantee 30-day return policy • 100% customer satisfaction

Engineering Excellence

🛠️ Heavy-Duty German Bearings
Precision industrial-grade ball bearings with high-temperature grease ensure maintenance-free operation beyond 10+ years even under extreme continuous loads.
🔇 Noise-optimized Centrifugal Design
Advanced scroll housing and dynamically balanced impeller reduce turbulence and noise, making it suitable for acoustic-sensitive environments.
⚡ High Efficiency Three-Phase Motor
3.9kW with only 11.0/6.4A current draw delivers exceptional energy savings. Three-phase 400V operation provides stable, efficient power for demanding industrial applications.
💨 High Static Pressure & Airflow
1300 rpm centrifugal design generates excellent air movement for heat dissipation in industrial machinery, cooling towers, and HVAC systems.

🚚 Shipping & Service Guarantee

Shipping From: Hong Kong – efficient global distribution hub.

Processing: Orders ship within 5 business days.

Express Delivery: 3-8 business days worldwide via DHL or UPS.

Genuine Promise: Only original ZIEHL-ABEGG factory-sealed products, meet all fit, form and function specifications.

Warranty & Returns: 1-year manufacturer warranty + 30-day hassle-free returns.

📦 Bulk / Large Quantity Inquiries: Contact [email protected] for volume pricing and custom logistics solutions.

❓ Frequently Asked Questions

Q1: How does this fan achieve over 10 years of reliable operation?
The RD31S-4DW.6Q.AL features heavy-duty die-cast housing, German-made premium industrial bearings, and a thermally protected motor. ZIEHL-ABEGG's rigorous testing ensures it withstands dust, humidity, vibration, and continuous duty cycles beyond a decade.
Q2: Is it quiet enough for commercial environments despite its power?
Yes. Thanks to its precision-balanced centrifugal impeller and optimized scroll housing, noise levels are remarkably low for its 3.9kW power class, making it suitable for commercial buildings and hospitals.
Q3: Why choose three-phase 400V for industrial applications?
Three-phase operation provides smoother power delivery, higher efficiency, and better reliability for continuous industrial use. It's the standard for manufacturing facilities worldwide.
Q4: What cooling performance can I expect for large industrial applications?
The powerful 3.9kW centrifugal design delivers exceptional static pressure and airflow, ensuring superior heat dissipation for cooling towers, industrial machinery, power plants, and heavy-duty HVAC applications under extreme thermal loads.

Need Expert Advice or Volume Discounts?

Our technical team is ready to assist with application matching, performance data, and custom quotations for OEM and industrial projects.

📧 Request Technical Support 💰 Request Volume Pricing

Customer Testimonial

★★★★★

"We installed the RD31S-4DW.6Q.AL in our manufacturing plant's cooling tower system, and the performance is outstanding. After 20 months of 24/7 operation, it runs smoothly with minimal noise despite the powerful 3.9kW output. The 11.0/6.4A current draw is incredibly efficient—saving us significant energy costs. The 41kg German build quality is rock solid. Perfect for demanding industrial environments where reliability and energy savings are critical. Highly recommended for heavy-duty cooling tower applications!"

— Thomas Richter, Plant Operations Director
Verified Buyer · Industrial Cooling Tower System · April 2026

* All products are 100% genuine ZIEHL-ABEGG. Specifications are subject to manufacturer updates. Contact us for compatibility check.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 62093924014

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4.1 ★★★★★
Based on 19 reviews
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Verified Purchase
David
Bozeman, US
★★★★★ 5
Finally a ball my power chewers cannot destroy
Size: Medium
I have two dogs, an American Bully and an American Pit Bull Terrier, and both of them love to chew. Most balls last a very short time around here before they are shredded or missing big chunks. This one has actually held up. They chase it, tug on it and sit and chew on it, and it is still in one piece with no pieces breaking off. One of my favorite things is being able to put food inside. I add some kibble or small snacks, and they will happily sit and work on it for a long time. It keeps them busy, gives them something safe to chew, and they get a little reward while they play. When they are done, I just rinse it out and it is ready to go again. If you have strong jawed dogs that usually destroy toys, this ball is worth trying. Mine really enjoy it and I feel better knowing they finally have a ball that can keep up with them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 22, 2025
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Verified Purchase
Jen Siefert
Pawtucket, US
★★★★★ 5
My dog LOVES this ball
Size: Medium, Size: Medium
Does your dog destroy tennis balls in seconds? Yes? Then your dog NEEDS this ball! It's squishy like a tennis ball, fits in ball launchers (even the cheap ones) and bounces when it hits the ground. My dog has been literally playing with this ball all day and not a single mark on it! The only bad thing is that it does not float. Definitely worth the money! Put it in your cart!
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Reviewed in the United States on March 8, 2026
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Verified Purchase
Wolf-Haven
Massapequa, US
★★★★★ 5
Perfect for ball demolishers
Size: Medium
The dogs love the chuck it brand. I don’t know what it’s made of but they go crazy over them. Will not play with another ball. Wonder if it’s “laced” with an addictive scent. Have pits. Very durable. Not able to chew to pieces. Last for about 6 months before there is a small break. I keep a back up because when the ball goes missing the house is in chaos. 😆 🤪
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Reviewed in the United States on March 27, 2026
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Tatiana
Natrona Heights, US
★★★★★ 5
Most durable ball!
Size: Medium
This are my dogs fav ball 😍 they last forever!
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Reviewed in the United States on April 23, 2026
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Nana
Natrona Heights, US
★★★★★ 4
Chuckit medium rebound balls
Size: Medium
My 8 month old German shepherd dog loves these balls. They are easy to throw, they bounce great, they are very chewable! She keeps one in her mouth most of the time. It satisfies her need to chew and she does not chew other things. She drops it in the water and lets the hole fill up and drinks that way. The only problem that has caused is suction in her mouth and difficulty in dislodging it for her. However, she would be lost without it!
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Reviewed in the United States on April 19, 2023

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