Since 2019, Ducheng Industrial and Shandong Shouguang Juneng Special Steel Co., Ltd. have embarked on an in-depth and stable cooperative journey hand in hand. Seven years ago, Ducheng Industrial undertook the first maintenance service for the SM150 inverter, the core medium-voltage equipment of Shandong Shouguang Juneng Special Steel. This cooperation carried extraordinary significance and marked an important starting point for the two parties to forge ahead together.
During the initial maintenance operation, the technical team of Ducheng Industrial demonstrated outstanding professionalism and dedication. In strict accordance with industrial standards and specifications, the team carried out comprehensive and refined maintenance on the SM150 medium-voltage inverter. Every procedure was executed with relentless attention to detail: from deep cleaning of precision internal components and tightening inspection of critical electrical connections, to lubrication and commissioning of mechanical transmission parts, as well as precise testing and calibration of all electrical performance indicators. Professional technical approaches and rigorous workflows guaranteed the equipment operated at optimal performance from the very beginning.
Over the past seven years, the SM150 inverter has maintained stable and reliable overall operation, delivering solid support for production activities. Throughout this seven-year partnership, Ducheng Industrial has consistently upheld a client-centric responsibility mindset, offering continuous professional remote technical support and consulting services. The team closely monitors equipment operating conditions, promptly resolves all types of technical inquiries, and honors its commitments to customers through tangible actions.
Maintenance Site in 2019
Relying on the solid reputation built from the first maintenance service and profound technical capabilities, the Shandong technical team of Ducheng Industrial was once again commissioned by Shandong Shouguang Juneng Special Steel Co., Ltd. in April 2025 to conduct the second maintenance service for the pivotal SM150 inverter. Covering multiple key areas including preventive maintenance, hidden danger inspection and rectification, performance optimization and technical upgrading, this maintenance work aims to comprehensively boost the operational performance and stability of the equipment and provide a robust backing for the customer’s production and operation.
Throughout the project implementation, the technical team of Ducheng Industrial maintained a professional, rigorous and accountable work ethic and fully leveraged in-depth expertise and abundant practical experience. Maintaining close communication and coordination with the customer’s team, the team carried out on-site operations in strict compliance with operating specifications and performed meticulous inspections and maintenance on the equipment. The team successfully detected and eliminated numerous potential equipment risks, properly resolved long-standing complex technical issues plaguing the customer with sophisticated technologies, and patiently and professionally answered various technical questions accumulated by the client over the years. In addition, drawing on industry experience, the technical team put forward a set of scientific, reasonable and actionable suggestions to guarantee the safe and stable operation of the equipment, covering the optimization of daily operation and maintenance management as well as the formulation and improvement of emergency response plans.
Maintenance Site in 2025
The outstanding performance delivered by Ducheng Industrial’s technical team during this maintenance service has won high recognition and praise from Shandong Shouguang Juneng Special Steel Co., Ltd. The client fully affirmed Ducheng Industrial’s technical strength, stating that it was the remarkable results of the initial maintenance service seven years ago, the long-term stable operation of equipment, and prompt and efficient repair support in the event of malfunctions that prompted them to choose Ducheng Industrial without hesitation once again for this maintenance work. The successful completion of this maintenance service further consolidates and deepens the cooperative relationship between the two parties, laying a solid foundation for broader and more in-depth collaboration in the future.
