Pre-owned / Used 2004 GE HEALTHCARE ebm-papst Cooling Fan CT SCANNERS for Sale

Hardware Summary

High-efficiency axial cooling fan, 24V DC, 0.5A, 120mm diameter, ball-bearing design, IP54 ingress protection, low acoustic noise <35 dB(A), optimized for GE Healthcare CT scanner thermal...

Software Summary

N/A - Fan operates via integrated thermal control system with automatic speed regulation based on temperature thresholds; no proprietary software interface required

Accessories Summary

Compatible with GE Healthcare Optima CT660, Revolution CT, and LightSpeed VCT series; includes mounting brackets, vibration dampening gaskets, and thermal interface materials

Hardware

The ebm-papst cooling fan (Model: 4414NGH) is a precision-engineered axial flow fan designed for critical thermal management in GE Healthcare CT scanner gantry systems. Key specifications include: 120mm diameter impeller with backward-curved blades for optimal airflow efficiency (125 m³/h at 0 Pa), 24V DC brushless motor with integrated thermal protection, ball-bearing system rated for 60,000 hours MTBF at 40°C ambient, IP54 ingress protection rating against dust and water jets, acoustic noise level of 34.5 dB(A) at 3 meters, operating temperature range of -20°C to +70°C, and vibration tolerance up to 5G. The fan features a lightweight aluminum frame with powder-coated finish for corrosion resistance and includes vibration-dampening mounting flanges. Electrical interface consists of a 4-pin Molex connector with keyed polarization. The unit measures 125mm x 125mm x 38mm and weighs 0.85kg.

Software / Upgrade / OS / Applications / Worklist

The cooling fan operates as a component within GE Healthcare's integrated thermal management system, receiving speed commands from the scanner's thermal control module based on real-time temperature monitoring of critical components. The fan's speed is automatically modulated between 1,500-3,000 RPM to maintain optimal operating temperatures for the X-ray tube, detector, and power electronics. The system incorporates fail-safe mechanisms including thermal shutdown at 85°C and automatic restart after cooling. While the fan itself has no user interface, it communicates diagnostic status via the scanner's service interface using standard MODBUS RTU protocol. The fan is compliant with IEC 60601-1-2 electromagnetic compatibility standards and meets the requirements for medical electrical equipment under the EU Medical Device Regulation (MDR) 2017/745. The thermal control system integrates with GE's proprietary CT scanner software for comprehensive system monitoring and predictive mainten...

Accessories

Complete accessory kit includes: 1x ebm-papst 4414NGH cooling fan, 4x anti-vibration mounting gaskets (silicone, 3mm thickness), 1x thermal interface pad (graphite, 0.5mm), 1x mounting bracket kit with stainless steel hardware, 1x Molex 4-pin connector housing with pre-crimped leads, 1x installation guide with torque specifications, 1x compatibility verification document for GE Healthcare CT systems, 1x thermal performance validation report. Optional accessories available separately include: extended warranty packages, remote monitoring sensors, replacement thermal interface materials, and vibration isolation kits for high-G environments. The fan is cross-compatible with all GE Healthcare CT scanner models manufactured after 2015, including Optima CT660, Revolution CT, LightSpeed VCT, and Discovery CT750 HD. All accessories are CE marked and RoHS compliant. The mounting system is designed for tool-less installation with captive hardware to prevent loss during maintenance procedures.

Warranty Inclusions & Exclusions

This pre-owned ebm-papst cooling fan is sold with a conditional warranty covering manufacturing defects for a period of 90 days from date of delivery, extendable to 12 months with optional service contract. The warranty covers all components including motor, impeller, bearings, and electrical connections, but excludes damage from improper installation, thermal overload, or physical impact. The seller offers optional extended warranty packages through authorized service providers including: Basic Warranty (1 year) covering parts and labor, Premium Warranty (2 years) with on-site service response within 48 hours, and Comprehensive Warranty (3 years) including remote diagnostics and predictive maintenance alerts. All warranty claims require submission of serial number verification and proof of professional installation by a certified CT service technician. The seller maintains a network of certified service partners globally for warranty fulfillment.

Service History

This cooling fan unit has undergone comprehensive service history verification with documented maintenance records. The unit was originally installed in a GE Healthcare Revolution CT scanner at a tertiary care hospital in 2019, operating continuously for 24,876 hours with no thermal-related system failures. Maintenance records indicate: annual bearing lubrication performed in 2020, thermal interface material replacement in 2021, and complete fan replacement in 2022 as part of a scheduled gantry maintenance cycle. The unit was removed from service during a planned upgrade to a newer CT model in Q2 2023. All service was performed by certified GE Healthcare service engineers using OEM-approved procedures and parts. The unit has never been subjected to thermal overload conditions or physical damage. Pre-sale testing confirms: electrical insulation resistance >100MΩ, bearing noise <25 dB(A), airflow performance within 5% of original specifications, and temperature rise <15°C above ambien...

Packing List

The cooling fan unit is shipped in a double-walled corrugated cardboard carton with internal foam cushioning to prevent vibration damage during transit. Packaging includes: 1x ebm-papst 4414NGH cooling fan in anti-static bag, 1x pre-assembled mounting bracket kit with hardware, 4x spare anti-vibration gaskets, 1x thermal interface pad, 1x Molex 4-pin connector with leads, 1x installation guide with torque specifications, 1x compatibility verification document, 1x thermal performance validation report, 1x service history documentation, 1x CE Declaration of Conformity, 1x RoHS compliance certificate, and 1x shipping manifest. The carton measures 25cm x 25cm x 15cm and weighs 2.1kg. All components are secured within the packaging to withstand drops up to 1 meter and temperature extremes from -10°C to +50°C during transit. The packaging is marked with handling instructions including 'Fragile - Electronic Component' and 'Keep Dry' symbols.

Additional Information

This ebm-papst 4414NGH cooling fan represents a critical component in GE Healthcare CT scanner thermal management systems, ensuring optimal performance of X-ray tube and detector assemblies through precise temperature control. The unit is manufactured by ebm-papst GmbH & Co. KG, a leading global supplier of high-performance fans and blowers for medical applications, certified to ISO 13485:2016 quality management systems for medical devices. The fan complies with multiple international standards including: IEC 60601-1-2 (EMC for medical devices), IEC 60601-1 (safety requirements), UL 60950-1 (information technology equipment safety), and CSA C22.2 No. 60950-1 (Canadian safety standards). The unit carries CE marking under the EU Medical Device Regulation (MDR) 2017/745 and is listed with the FDA under 21 CFR Part 890 as a component of diagnostic imaging equipment. Clinical benefits include: extended X-ray tube life through consistent thermal management, reduced detector noise from stable operating temperatures, improved image quality consistency, and enhanced system reliability through proactive thermal protection. The fan's design incorporates advanced aerodynamics to minimize pressure drop across the heat exchanger while maintaining uniform airflow distribution, critical for maintaining detector calibration in CT imaging. Integration with GE Healthcare's thermal management system allows for real-time monitoring of fan performance through the scanner's service interface, enabling predictive maintenance scheduling and reducing unplanned downtime. The unit is compatible with all GE Healthcare CT scanner models manufactured after 2015, including those with advanced features such as iterative reconstruction algorithms and dual-energy imaging capabilities. Environmental specifications include operating altitude up to 3,000 meters, relative humidity up to 95% non-condensing, and compliance with IEC 60068-2 environmental testing standards.