ebmpapst DiaForce 40mm Mixed-Flow Fan
Product Overview
ebmpapst DiaForce 40mm is a high-performance mixed-flow fan. It features ultra-high static pressure, compact size and long service life. Equipped with PWM speed control + tacho signal output and multiple built-in circuit protections, it is widely used for heat dissipation of compact high-density electronic devices.
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Core Parameter Table
| Item | Specification |
|---|---|
| Model | VKCH040DHDGS |
| Part No. | 8300101208 |
| Dimensions | 40 × 40 × 56 mm |
| Weight | 74 g |
| Material | Plastic frame & plastic impeller |
| Bearing | Preloaded ball bearing |
| Rated Voltage | 12 V DC |
| Voltage Range | 8 ~ 13.8 V DC |
| Rated Speed | 40000 rpm |
| Rated Power | 25.6 W |
| Rated Current | 1.86 ~ 2.5 A |
| Max Airflow | 55 m³/h |
| Max Static Pressure | 2375 Pa |
| Noise Level | 64 dB(A) |
| Control Mode | PWM (1 kHz ~ 30 kHz, typical 2 kHz) |
| Signal | Tacho output (2 pulses per revolution) |
| Operating Temp | -20 ℃ ~ 70 ℃ |
| Storage Temp | -40 ℃ ~ 80 ℃ |
| Protection Class | IP20 |
Electrical Protection
- Reverse polarity protection, locked rotor auto-restart
- Locked rotor current: approx. 5000 mA
- Start-up current: ≤ 7000 mA
- No built-in fuse
Reliability & Certifications
- Service life (@40℃): 70000 hours
- Certifications: CE, UKCA, EAC, UL, VDE, CSA
Main Features
- Extremely high static pressure, excellent for high-resistance narrow space cooling
- PWM stepless speed regulation + tacho feedback, easy for system integration
- Preloaded ball bearing, low vibration, 24h continuous operation supported
- Complete circuit protection ensures stable operation
Application
High-density circuit modules, small industrial power units, portable precision equipment, embedded systems and other compact electronic cooling scenarios.
Our Services
Faster delivery | Worldwide shipping | Alternative supply | Sample service | Test and warranty | In-Stock (Most products) | Quality Assured | Customization | Competitive Pricing | Cost-effective modules
Product Description
We specialize in supplying a full range of industrial and commercial cooling fans, including Axial fans, Centrifugal fans, Tangential blowers, Blowers, Air condition fans, Data center fans, and ICT fans. These fans are widely used in HVAC systems, air conditioning units, data centers, industrial automation equipment, telecom base stations, and power cabinets.
For each model, we offer three flexible supply options to meet different budget and application needs:
- New Original: 100% genuine brand-name fans, with full factory specifications and performance guarantees.
- Cost-effective Compatible: High-quality alternative fans with matching dimensions, airflow, and reliability at a lower cost.
- Economical Second-hand / Refurbished: Fully cleaned and tested units, ideal for cost-sensitive projects without compromising stability.
Key advantages for your projects:
✅ Wide range of categories: covers all major types, from compact DC fans to industrial axial/centrifugal blowers.
✅ Africa-ready performance: optimized for high-temperature, high-dust environments, perfectly suited for local conditions.
✅ Complete range & customization: various sizes, voltages, and speeds available on request.
✅ Strict quality control: every fan is tested for airflow, static pressure, noise, and stability before shipment.
✅ Reliable after-sales support: 1-year warranty included, with return/exchange options for quality issues under normal use.
About Us
Skyward Telecom (also known as Skywardtel) was founded in 2009. We have always been guided by the principle of integrity, with a mission to help engineers and businesses overcome the challenges of sourcing high-quality, cost-effective communication and cooling products.
Over the years, we have provided reliable solutions to users in more than 80 countries worldwide, earning widespread recognition for our professionalism and service.
FAQ
- Who are we?
We are a professional cooling fan supplier based in Guangdong, China, since 2009. We specialize in a full range of industrial and commercial fans, serving customers worldwide with a core focus on:
- Africa (50.00%)
- Europe (15.00%)
- Middle East (10.00%)
- Southeast Asia (5.00%)
- Americas (20.00%)
Our team has about 80-100 people, with dedicated support for emerging markets like Africa.
- How can we guarantee fan quality?
- Pre-production samples are available for confirmation before bulk orders.
- Every fan undergoes a full performance test (airflow, static pressure, noise, and stability) before shipment.
- All new, compatible, or refurbished fans are professionally cleaned and inspected.
- Only units passing our strict quality control are packed and shipped.
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What types of fans can you buy from us?
We offer a complete range of cooling solutions, including:
- Axial fans: Compact DC fans (AxiForce-style) and industrial axial fans (200/250/300mm)
- Centrifugal fans: EC/AC centrifugal blowers for HVAC and industrial applications
- Tangential blowers: Cross-flow fans for air conditioners and ventilation systems
- Blowers: High-pressure blowers for boilers, heating systems, and industrial equipment
- Air condition fans: Specialized fans for commercial and industrial air conditioning units
- Data center fans: High-efficiency fans for servers, cabinets, and cooling systems
- ICT fans: Fans for telecom base stations, switches, and network equipment
We provide new original, cost-effective compatible, and tested second-hand/refurbished options for most models and brands.
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Why should you buy fans from us instead of other suppliers?✅ Full category coverage: We carry all main types of industrial and commercial fans, so you can source everything in one place.✅ Flexible options for every budget: Choose from new original, compatible, or refurbished fans to match your cost and quality needs.✅ Africa-ready solutions: Our fans are tested and suitable for high-temperature, high-dust environments common in Africa.✅ Reliable quality & service: We have served customers in over 80 countries and built a solid reputation for honest transactions and professional support.
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What services can we provide?
- Accepted Delivery Terms: FOB, CFR, CIF, EXW, FAS, FCA, DDP
- Accepted Payment Currencies: USD, EUR, HKD, GBP, CNY
- Accepted Payment Types: T/T, L/C, D/P, D/A, MoneyGram, Credit Card, PayPal, Cash
- Languages Spoken: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, Italian