Customer Requirement
A European OEM was in the final stage of mechanical design for a new product. Their internal documentation pointed toward a forced-air cooling application within an enclosed electronics cabinet or small appliance. Under this condition, a scenario where a wide, even sheet of air works better than a concentrated jet. They requested production-accurate 3D STEP files of two standard catalog models:
- LWCA-50150SN-07 — 223mm cross-flow fan
- LWCA-50190SN-07 — 263mm cross-flow fan
As a system integrator, the client needed these models for fitment verification and to lock down the chassis layout.
Engineering Solution
The project was for critical design documentation for existing parts, but not for a new product. The selection of a cross-flow fan type provides a wide, uniform air distribution across a surface at low pressure. The selected models use a standard AC induction motor. The engineer’s task was to deliver verified, current 3D models for the LWCA-50150SN-07 and LWCA-50190SN-07 cross-flow fans. The final 3D geometry files were approved by LONGWELL’s technical supervisor. This is a critical step to ensure the 3D geometry exactly matches the current production tooling. This prevents costly customer errors that can arise from designing around outdated or non-production-intent models.
Technical Specifications
| Parameter | LWCA-50150SN-07 | LWCA-50190SN-07 |
|---|---|---|
| Dimensions (A x B x C) | 223 x 168 x 158 mm | 263 x 208 x 198 mm |
| Voltage | 230 V | 230 V |
| Frequency | 50 Hz | 50 Hz |
| Input Power | 11 W | 11 W |
| Speed | 2000 RPM | 2000 RPM |
| Airflow | 91 m³/h (≈54 CFM) | 114 m³/h (≈67 CFM) |
| Static Pressure | 27 Pa | 30 Pa |
| Noise | 37 dB(A) | 38 dB(A) |
These specifications detail two cross-flow blowers sharing an identical 11W, 2000 RPM motor package. Their primary difference is the impeller and housing length. This allows engineers to scale airflow from 91 to 114 m³/h to fit different chassis widths while maintaining a consistent, low-noise profile.
Technical Documentation
Specification table for the LWCA series, detailing performance for 230V (SN) and 115V (UN) models. This document allows engineers to quickly compare performance across the product family.
LWCA-50150SN-07.stp
3D STEP model for the 223mm cross-flow fan. This file is used by mechanical design engineers for system integration, clearance analysis, and inclusion in the top-level assembly CAD.
LWCA-50190SN-07.stp
3D STEP model for the 263mm cross-flow fan. This allows the OEM’s engineering and procurement teams to validate all physical dimensions and mounting points against their own chassis design before issuing a purchase order.
Why LONGWELL Cross-Flow Fan for Electronics Cabinet Cooling?
- Compact Design: The LWCA-50150SN-07 cross flow fan length for 233mm, which can be easily integrated into the narrow internal space of electronics cabinets.
- Wide Cooling Areas: LONGWELL cross-flow fans can generate uniform and wide airflow along the entire impeller. The cross-flow fans will provide a continuous sweeping airflow that covers more heating components inside the cabinet.
- Technical Support: LONGWELL’s technical team will respond within 24 hours when the customer sends the requirements. Offers comprehensive technical support from product selection to installation and maintenance. The
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Compliance with Global Market Access Requirements: LONGWELL cross-flow fans have passed strict factory testing. They can be certified with CE, UL, ETL, CCC, RoHS, and REACH to meet the compliance requirements of different regional markets.
Explore our full Cross-Flow Fans range.
Frequently Asked Questions
Q: What is the typical lead time for a production order of the LWCA-50190SN-07?
A: Products like LWCA-50190SN-07 models are standard products, which have a manufacturing lead time of 15-30 days for 500-unit order quantities.
Q: Are these fans certified for sale in Europe or North America?
A: Yes, the LWCA series Cross-flow fans are certified for different countries. The LWCA-50190SN-07 model is specifically for 230V/50Hz markets and is CE-marked for the European market. For North America, the LWCA-50190UN-06 model variants operate on 115V/60Hz.
Q: Can the speed of this AC-powered fan be controlled?
A: The standard LWCA-series fans use a single-speed AC induction motor designed for optimal performance at a fixed speed. They are not designed for speed control via voltage or VFD. For applications requiring variable airflow, LONGWELL recommends the equivalent cross-flow fan series equipped with a SmartEC™ motor, which supports 0-10V, PWM, or RS485 control inputs.
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: 7026677738-LWCA-50150SN-07/LWCA-50190SN-07 3D
Project Date: 2026-06-24 06:33:46
