Customer Requirement
A European OEM of specialized electronic control cabinets needed a cooling solution for a long, narrow chassis — maximum available length 670 mm. The application required a wide, uniform sheet of air across an array of sensitive components, making traditional axial or centrifugal fans unsuitable without complex, space-consuming ductwork. The cabinets are placed in potentially occupied areas, so acoustic signature is critical.
| Parameter | Requirement |
|---|---|
| Airflow | ≥ 200 m³/h |
| System Impedance | ~25 Pa (low) |
| Voltage | 24 VDC nominal |
| Noise | < 40 dB(A) |
| Operating Temperature | Up to +60°C |
| Bearings | Ball bearings (maintenance-free lifecycle) |
| Speed Control | 0–10V analog input |
| Compliance | CE, RoHS |
| Deliverables | Full technical drawings + performance data |
Engineering Solution
The application clearly called for a cross-flow fan to meet the spatial and airflow uniformity requirements. Our engineering team immediately focused on the LWCD-40 series, which features a 40mm diameter impeller ideal for low-profile applications.
The LWCD-40610MN-06 was selected with the following configuration:
- Impeller: 40 mm diameter, aluminum, 22 blades — CFD-optimized for target airflow at 2400 RPM with low noise profile (AcousticFlow™ technology)
- Motor: 3-phase BLDC — high efficiency, long operational life, precise speed control
- Controller: Integrated SmartEC™ — natively accepts 0–10V analog input; provides FG signal for external speed monitoring
- Bearings: Ball bearings with high-temperature grease — rated for +60°C ambient, maintenance-free over product lifecycle
Technical Specifications
| Parameter | Value |
|---|---|
| Model | LWCD-40610MN-06 |
| Voltage | 24 VDC |
| Current | 0.21 A |
| Speed | 2400 RPM |
| Static Pressure | 26 Pa |
| Air Flow | 203 m³/h / 119.5 CFM |
| Noise | 37 dB(A) |
| Speed Control | 0-10V Analog / PWM |
| Signal Output | FG (Tachometer) |
| Bearing Type | Ball Bearing |
| Insulation Class | B |
| Operating Temperature | -25°C to +60°C |
| Dimensions (Overall / Mounting / Impeller) | 670 / 620 / 610 mm |
| Certifications | CE, RoHS, ISO 9001 |
The specifications confirm the LWCD-40610MN-06 meets the customer’s core requirements, delivering the necessary 203 m³/h airflow while staying under the 40 dB(A) acoustic limit. Its native 24V DC motor with integrated 0-10V control simplifies integration into modern electronic systems without external components.
Download the complete LWCD-40 series datasheet, containing performance data, P-Q curves, and electrical specifications for the entire model range.
Download LWCD-40 Series Technical Datasheet (PDF)
Why Longwell for This Application
- 35–38% BOM Cost Reduction
The LWCD-40610MN-06 unit price landed 35–38% below a comparable German supplier’s quote. No compromise on engineering: 3-phase BLDC motor and high-temperature ball bearings are identical spec class. The savings went straight to the customer’s BOM.
- Lab-Verified Performance
The 203 m³/h airflow and 26 Pa static pressure were validated in LONGWELL’s in-house lab under AMCA 210-16 test conditions. The data the customer uses for CFD and thermal simulation is measured, not extrapolated.
- 90-Day Custom NPI —
This project used a standard model. If the OEM had needed a non-standard length, connector, or mounting configuration, LONGWELL’s structured NPI process delivers custom solutions in 90 days — the same cycle that took a top-3 global precision cooling OEM from spec lock to mass production. European manufacturers typically quote 12–18 months for equivalent scope.
- Production Scale That De-Risks Volume Orders
Annual capacity: 120,000+ data center cooling units and 30,000+ cold chain units. Mature supply chain, consistent component sourcing, proven frame-agreement fulfillment at 80,000+ units/year. For OEMs scaling from prototype to volume production — no surprises on delivery.
Explore our full Cross-Flow Fans range.
Frequently Asked Questions
Q: Can the speed control input be modified from 0-10V to a PWM signal?
A: Yes. The SmartEC™ controller accepts both 0–10V analog and PWM on the same input wire. PWM frequency range: 1–25 kHz. Specify your control method at order — the controller is factory-configured accordingly.
Q: What is the L10 life expectancy of the LWCD-40610MN-06 fan’s bearings at its maximum rated temperature?
A: The LWCD-40610MN-06 uses high-quality ball bearings rated for a minimum of 40,000 hours (L10) at an ambient temperature of 40°C. Operating at the maximum rated temperature of +60°C will impact the overall lifespan. Our application engineering team can provide detailed life calculations based on your specific duty cycle and operating conditions.
Q: Is a safety grid available for the LWCD-40610MN-06?
A: Yes. Model LWCD-40610MN-06G ships with a factory-installed safety grid. The base model LWCD-40610MN-06N (the “-N” suffix) ships without. Specify -06G for applications where the fan is accessible during operation, to comply with IEC 60335.
Technical Documentation & Resources
Project Gallery & Technical Drawings
Have a Similar Fan Requirement?
Longwell’s engineering team delivers custom spec sheets and samples within 90 days. Since 1990, we have supplied EC fans and blowers to OEMs across HVAC, cold chain, data center, and industrial applications worldwide.
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🏆 ISO 9001 / ISO 14001 / ISO 45001 | CE (TÜV) | UL/ETL | ATEX Zone 21/22 | AMCA 210-16 / ISO 5801 tested
Project Item: 7031248602-LWCD-40610MN-06 图纸
Project Date: 2026-06-29 01:08:37
