SKU: 4118986652

RD28S-4DW.4R.2L ZIEHL-ABEGG Centrifugal Fan 3~400V 1.75kW 3.1A 1130rpm

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Description

RD28S-4DW.4R.2L ZIEHL-ABEGG Centrifugal Fan 3~400V 1.75kW 3.1A 1130rpmMADE IN GERMANY CENTRIFUGAL INDUSTRIAL FAN ZIEHL ABEGG RD28S 4DW. 4R. 2L Centrifugal Fan German engineered for 10+ years of continuous operation, whisper quiet 1130rpm performance, energy saving 1. 75kW motor, and high static pressure the ultimate cooling solution for demanding industrial systems. DOWNLOAD OFFICIAL DATASHEET (PDF) Core Performance Advantages 10+ Years Industrial Durability ZIEHL ABEGG German engineering with premium ball bearings,

🇩🇪 MADE IN GERMANY | CENTRIFUGAL INDUSTRIAL FAN

ZIEHL-ABEGG RD28S-4DW.4R.2L Centrifugal Fan

German-engineered for 10+ years of continuous operation, whisper-quiet 1130rpm performance, energy-saving 1.75kW motor, and high static pressure – the ultimate cooling solution for demanding industrial systems.

📄 DOWNLOAD OFFICIAL DATASHEET (PDF)

Core Performance Advantages

🏆
10+ Years Industrial Durability
ZIEHL-ABEGG German engineering with premium ball bearings, reinforced housing, and robust 25kg build. Exceeds 10+ years of continuous operation in harsh environments with minimal maintenance.
🔇
Ultra-Quiet Operation
Advanced aerodynamic impeller profiling and precision dynamic balancing drastically reduce turbulence and noise. Ideal for hospitals, offices, residential areas, and noise-sensitive facilities.
⚡
Energy Efficient Low Power
Optimized 1.75kW consumption with 3.1A current draw (3~400V). Cuts energy costs significantly vs conventional fans – perfect for 24/7 continuous duty cycles.
💨
High-Volume Centrifugal Airflow
Powerful 1130 rpm centrifugal airflow delivers exceptional static pressure and directional cooling. Provides superior heat dissipation for data centers, power electronics, and industrial systems.

Industry Applications

The RD28S-4DW.4R.2L is trusted across multiple sectors requiring reliable, high-efficiency centrifugal ventilation.

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

Technical Specifications

Model No RD28S-4DW.4R.2L GENUINE
Article No 209904 FACTORY CODE
Motor No RZ28S-4DW.4R.2L MOTOR CODE
Condition Original new from manufacturer
Power 1.75 kW ENERGY EFFICIENT
Voltage 3~400V THREE PHASE
Current 3.1 A OPTIMIZED DRAW
Speed 1130 rpm HIGH AIRFLOW
Frequency 50/60 Hz
Manufacturer ZIEHL-ABEGG GERMANY
HS Code 8414599099
Country of Origin Germany MADE IN GERMANY
Product Type Centrifugal fan INDUSTRIAL GRADE
Warranty 1 year PEACE OF MIND
Net Weight 25 kg HEAVY DUTY
Shipping Dimension 50*50*50 cm
Ship From Hong Kong
Lead Time 5 days
Delivery Time 3-8 days
Ship By DHL / UPS

📦 Shipping, Warranty & Service

Sell and ship only genuine products from factory.

Promise: Meet all factory specs, fit, form, and function.

Shipping From: Dispatched from Hong Kong – fast global distribution hub.

Processing Time: Orders are processed within 5 business days.

Express Delivery: Worldwide delivery in 3-8 business days via DHL / UPS.

Warranty: Full 1-year manufacturer warranty backed by ZIEHL-ABEGG.

30-Day Returns: 30-day return policy & 100% customer satisfaction commitment.

Volume Pricing: For large quantity inquiries: [email protected]

Frequently Asked Questions

🔹 Q1: What makes this fan last over 10 years?
A: The RD28S-4DW.4R.2L features German-engineered construction with premium ball bearings, reinforced housing, and robust 25kg build. Designed for continuous industrial duty with minimal wear, ensuring a service life exceeding a decade.
🔹 Q2: How quiet is the 1130 rpm operation?
A: Despite its high static pressure capability, the aerodynamically optimized impeller and precision balancing drastically reduce noise. It is well-suited for noise-sensitive environments such as hospitals, labs, and office buildings.
🔹 Q3: How does the 1.75 kW motor save energy?
A: With optimized current draw of 3.1A and high efficiency across 400V, it consumes significantly less power than traditional fans, lowering operational costs especially in 24/7 applications.
🔹 Q4: What cooling performance can I expect?
A: The 1130 RPM centrifugal airflow delivers exceptional static pressure and volumetric flow, ensuring superior heat dissipation for industrial machinery, data centers, and HVAC systems.

Need a Reliable High-Performance Centrifugal Fan?

Contact our technical team for application support, bulk quotes, or customized solutions.

📧 Request Technical Support 📊 Request Volume Pricing

⭐ Customer Reviews

★★★★★ Verified Buyer – Senior Industrial Engineer

"The ZIEHL-ABEGG RD28S-4DW.4R.2L exceeded all expectations. It runs extremely quiet at 1130 rpm, delivers powerful centrifugal airflow with excellent static pressure, and the 1.75kW motor saves us significant energy costs. Build quality is rock-solid at 25kg – clearly engineered for 10+ years of heavy-duty operation. Perfect for our industrial ventilation and VFD cooling retrofit. Highly recommended for any application requiring reliable, silent, high-static-pressure airflow."

— Jürgen H., Facility Operations Manager

✅ Verified Purchase · Reviewed on May 8, 2026

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: 4118986652

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4.2 ★★★★★
Based on 12 reviews
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Verified Purchase
Jess Papineau
Los Angeles, US
★★★★★ 5
Recommend
Flavor Name: REAL Bacon, Size: Small
This chew toy is great for aggressive chewers—it’s very durable and holds up much longer than most other toys we’ve tried. The ring shape makes it easy for dogs to grip and carry, and my dog was immediately interested in it, likely because of the real bacon flavor. It’s also a nice bonus that it’s made in the USA and doesn’t have a strong smell for humans. That said, it is very hard, so I’d recommend keeping an eye on your dog while they’re using it, especially if they’re an intense chewer. Over time, it does wear down and needs to be replaced once the edges get rough. Overall: a long-lasting, high-quality chew that keeps dogs occupied—just be mindful of the hardness and monitor for wear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
S
Verified Purchase
Scorpogee
Chelsea, US
★★★★★ 5
Long lasting chew toy!
Flavor Name: REAL Bacon, Size: Large, Flavor Name: REAL Bacon, Size: Large
All I can say is wow! I have a Basset Hound mix who will be in the puppy stage for another year, and as we all know, that means dealing with teething issues. Seeing the photo of this product when it was new makes it obvious what he’s done to it. He’s still at it, chewing like mad. Made for medium to large dogs, he happily totes it around everywhere, and I’m always picking it up so I don’t trip over it. The inner cup can hold peanut butter as a special treat for your pet, and I give him some when he’s feeling a bit bored. It doesn’t last long, but he’ll keep chewing on it for a while afterward. For me, the value is worth the price if it keeps his teeth off my furniture—pet owners know exactly what I mean.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 30, 2026
E
Verified Purchase
Eric Shozuya
Port Orchard, US
★★★★★ 4
Worth full product
Flavor Name: REAL Bacon, Size: Large
My dog enjoys it and very durable for my Pitbull!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
T
Verified Purchase
Tammy J
Houston, US
★★★★★ 5
All 3 Dogs Want The Benebone Ring Now
Flavor Name: REAL Bacon, Size: Large
Rescued an Old English Sheepdog and after about 2 weeks, he started chewing things in the house. We knew he enjoyed chewing sticks in the backyard, but chewing things in the house was a no go. Purchased this Benebone Ring (bacon) hoping it would help to curb some of the issues we were having. I am happy to report that so far, after 3-4 weeks of him having the Benebone Ring, he has not chewed a single thing inside the house. He loves this ring and carries it in and out during the day so that he has it with him. The only problem we ran into was our other 2 dogs ALSO wanted the Benebone Ring. While they are not big chewers, suddenly this toy became the must have item in the house. So of course, we had to get more. Highly recommend this chew toy as it is not only durable, it appears to be highly desirable. Keep in mind however that this toy is heavy. So when your dog decides to drop it on your hardwood floors, you WILL hear it in every room in the house!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
A
Verified Purchase
Ashley
Grantham, US
★★★★★ 5
My babies love their Benebones!
Flavor Name: REAL Bacon, Size: Large, Flavor Name: REAL Bacon, Size: Large
My one-year old pittie is 60lbs and has severe allergies to EVERYTHING, she's on medicated food and all the crazy things, and so I was trying to find something that wouldn't mess up her regimen by her ingesting it. This is PERFECT. She loves her medium sized Benebone! She carries it everywhere haha. I have three other big dogs, and got the largest one for my 110lb German Shepherd and she also loves it. I keep an eye on the edges and sand them down if I find anything sharp. These things are TOUGH. My pitbull can eat a massive bully stick in less than ten minutes, and she's barely made a dent in this thing! My GSD is a little more delicate and likes to savor and enjoy her toys, so hers isn't progressing as fast. She eats Yak Chews in around 30 minutes (and those things are like concrete!) I think these will easily last a month, possibly more, and for the price you can't beat it. The value is insane. I spend maybe 200$ a month on rawhide alternatives and bully sticks and yak chews for them, and these 14$ things last infinitely longer. BTW these things hurt like a mother trucker when you step on them, so keep an eye on where they are haha they're big and heavy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 9, 2025

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