Customer Requirement
The client developing a new commercial-grade 3D printer found LONGWELL for cross flow fan customization. The project requires compact air circulation solution to manage thermal conditions. The customer requested a 3D CAD model to evaluate mechanical integration and the fan installation was limited to 50 mm (H) × 50 mm (W) × 300 mm (L) with seamless integration and without compromising airflow performance.
Based on the client’s own requirements, their minimum need is a standard operating temperature rating of +60°C would be sufficient. System integration was another critical design requirement. The customer specified a 24 V DC cross-flow fan to match the printer’s existing power architecture. In addition, PWM speed control was requested to enable precise aiflow adjustment. With these requirements established, LONGWELL’s engineering team began developing a customized cross-flow fan solution optimized for compact dimensions, airflow distribution, and seamless integration into customer’s 3D printing platform.
Engineering Solution
Upon receiving the brief, LONGWELL’s technical team immediately recommended a cross-flow fan configuration. The customer’s preference for 24V DC power and PWM control made a brushless DC motor the default choice.
Based on the dimensional constraint of a 50mm x 50mm cross-section, our engineer recommended Longwell’s LWCD 30 Series as the appropriate product family. and LWCD-30190MN-07 model was the most efficient and cost=effective choice. Its total length of 252mm fit comfortably within the 300mm maximum. The standard operational temperature rating of -25°C to +60°C and the core housing matched the 50mm profile, but the standard mounting flanges extended the total width to 108mm. The engineering solution was to provide the definitive DWG CAD file for the LWCD-30190MN-07 immediately. This enabled the customer’s design team to import the model into their master assembly and verify the dimensional conflict, saving them weeks of prototyping guesswork.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | LWCD-30190MN-07 |
| Motor Type | 3 Phase BLDC Motor |
| Voltage | 24 VDC |
| Current | 0.05 A |
| Speed | 2400 RPM |
| Air Flow | 12 m³/h |
| Static Pressure | 27 Pa |
| Noise | 20 dB(A) |
| Overall Dimensions (A x C) | 252 mm x 108 mm |
| Housing Height x Width | 50 mm x 50 mm |
| Housing Material | Steel + Aluminum Alloy |
| Blade Material | Aluminum Alloy |
| Speed Control | 0-10V / PWM |
| Insulation Class | B |
| Bearing Type | Ball Bearing |
| Operation Temperature | -25°C to +60°C |
| Certifications | CE, RoHS, BSCI, ISO 9001 |
The specifications show a fan designed for low-noise circulation, with the 20 dB(A) noise level being critical for equipment intended for office or lab environments. For this project, the most important data points were the physical dimensions, which allowed the OEM to quickly determine fitment.
Technical Documentation
LWCD-30190MN-07.dwg
This DWG file is the definitive 2D/3D CAD drawing used by the OEM’s mechanical engineers to perform a virtual fit-check within their master assembly. The product datasheet provides procurement managers and engineers with all key performance, electrical, and material specifications for initial model evaluation.
This internal communication log shows the direct collaboration between sales and engineering to rapidly clarify the customer’s specific dimensional, thermal, and electrical constraints.
Why Choose Longwell for 3D Printer?
- Cost-Effective Thermal Management with Fast Delivery: Offers 35-55% lower landed cost compared to premium European brands. Lead times are drastically shorter: samples ship in 1-3 days, series orders (≤500 units) in 15-30 days, and OEM volume programs in 6-10 weeks—far faster than competitors’ 12-22 week lead times. This enables quicker 3D printer production cycles and reduced downtime for maintenance.
- Easy Integration: LONGWELL fans support standard control signals, ensuring compatibility with 3D printer control systems without requiring BMS reprogramming.
- Direct-from-Engineer Support: The OEM’s query was handled directly by a single technical PM to ensure that your requirement can be totally understood, leading to a relevant and actionable recommendation.
- Certifications & Reliability: Longwell fans hold global certifications including CE (LVD + EMC), UL/cUL, TÜV, RoHS, REACH, and ISO 9001/14001/45001, ensuring compliance with international safety and environmental standards for industrial 3D printing applications.
Explore our full Cross-Flow Fans range.
Frequently Asked Questions
Q: What can I customize for cross flow fan?
A: LONGWELL provides comprehensive OEM and ODM customization services for cross-flow fans, including cross flow fan dimensions, airflow and static pressure performance, speed control, motor types, or IP ratings.
Q: My application operates in temperatures up to 120°C, but the standard specification lists a maximum operating temperature of +60°C. Can LONGWELL provide a high-temperature version?
A: Yes. Though the standard model is rated for continuous operation up to +60°C, LONGWELL can develop high-temperature versions based on different environment needs.
Q: Can LONGWELL assist with fan selection if I only know my installation space and cooling requirements?
A: Yes. Our application engineers regularly help customers select or develop the most suitable cross-flow fan based on available installation space, airflow requirements, operating temperature, noise targets, voltage, and control method.
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: 6993147976-LWCD-30190MN-07
Project Date: 2026-05-15 05:47:02
