Case 1: Liangshan Port's Smart Terminal Achieves Unmanned Stacking of Steel Coils Weighing Over 35 Tons

Qianhao Magnetic Electric's magnetic control system, designed specifically for Liangshan Port, has successfully achieved unmanned stacking of steel coils weighing over 35 tons, setting a new industry record with millimeter-level positioning accuracy. The system leverages electro-permanent magnet technology to precisely grip and release the steel coils, eliminating the risk of coil slippage—commonly caused by human error in traditional lifting equipment. At the same time, it boosts stacking efficiency by an impressive 40%. This groundbreaking case underscores Qianhao Magnetic Electric's core technological strengths in handling ultra-heavy materials: high precision, exceptional stability, and full-process automation.

Case Two: A large-scale unmanned general cargo terminal installs an electric permanent-magnet lifting device integrated with a generator set.

In the modernized lifting operations at a large-scale unmanned grocery terminal, Qianhao’s electric permanent-magnet lifting device made a stunning debut with its innovative design. This lifting tool is an electric permanent-magnet device independently developed by Qianhao, integrating power-generation functionality. It breaks away from the traditional reliance on external power sources—requiring neither charging nor connection to electricity—and instead relies on its unique self-powered system to achieve energy autonomy, granting the device unparalleled flexibility.

Its design is ingenious and boasts exceptional adaptability. It seamlessly pairs with quay cranes, enabling efficient lifting and handling of cargo right at the pier’s edge—ensuring swift cargo flow. At the same time, it can easily be mounted on front-mounted forklifts, facilitating smooth transitions between various stages of transportation and boosting overall logistics efficiency. Moreover, a specially designed forklift lifting mechanism has been integrated, further expanding the versatility of the lifting equipment to meet a wide range of handling needs.

Notably, this electric permanent magnet lifting device has undergone rigorous testing at a leading, benchmark unmanned port terminal in China. Thanks to its outstanding performance, reliable operation, and exceptional adaptability, it successfully passed inspection and has now been officially put into service. Serving as a "smart envoy" on the terminal, it delivers precise, efficient, and flexible operations, injecting powerful momentum into the seamless functioning of the unmanned facility. As a key driver propelling the port toward smarter, more automated development, it is setting a new industry standard and guiding the sector to unprecedented heights.

Technical Strength Analysis: Four Core Advantages Underpinning Port Applications

• Millisecond-level response with millimeter-level precision
  The Qianhao Electric Permanent Magnet Lifting Device achieves rapid switching of magnetic pole states—occurring in milliseconds—through an intelligent magnetic control system, and works seamlessly with high-precision sensors to ensure accurate positioning of the lifting points—down to the millimeter level. This exceptional capability is crucial for high-frequency, high-precision lifting operations in port environments, such as steel coil stacking or steel plate sorting, significantly enhancing both operational efficiency and safety.
• Power failure does not result in loss of magnetism—safety and redundancy designed.
  Electro-permanent magnet technology combines the rapid response of electromagnets with the enduring holding force of permanent magnets, ensuring that materials remain securely attached even in the event of a power failure—thus eliminating the risk of materials slipping off, which can occur with conventional electromagnets when power is lost. Additionally, the equipment features a built-in magnetic-state detection module that continuously monitors the stability of the magnetic force. In case of any abnormalities, it automatically switches to a safe mode and triggers an alarm, providing port operations with a robust, dual-layered safety guarantee.
• Energy conservation and consumption reduction align with the "Dual Carbon" strategy.
  The Qianhao electric permanent magnet lifting device is energized only briefly during state switching, and once it grips the load, it relies entirely on permanent magnetic force to maintain stability—resulting in energy consumption that’s reduced by more than 90% compared to conventional electromagnets. Take port terminals as an example: a single unit can save tens of thousands of kilowatt-hours of electricity annually, significantly cutting operational costs while also aligning with the nation’s “Dual Carbon” strategy goals.
• All-scenario customized capabilities
  Qianhao Magnetic Electric offers a one-stop service ranging from solution design and manufacturing to installation and commissioning. We can customize specialized lifting tools tailored to the specific materials (such as steel plates, steel coils, and steel pipes) and operating conditions (e.g., humid or salt-spray corrosion environments) found in ports. For instance, addressing the need for lifting thick shipbuilding plates, Qianhao has custom-designed a 35-ton electric permanent magnet crossbeam lifting tool. By optimizing the magnetic circuit design and the crossbeam’s gravitational distribution, we’ve boosted the pull-out force performance to an industry-leading 45 kN/cm², ensuring reliable operation even under harsh environmental conditions.

Industry Position and Market Recognition

• Market Leadership in Market Share: In the field of heavy-material lifting—such as steel pipes, round bars, and steel strip coils—Qianhao Magnetic Electric holds the top position in market share. Its products are exported to markets including Mexico, Thailand, and Southeast Asia, serving over 3,000 industrial enterprises worldwide.
• Technology Barriers Strengthened: The company holds 51 patents related to electro-permanent magnets, including core inventions such as magnetic templates and rechargeable electro-permanent magnets. Notably, its "Automatic Suction-and-Release Lifting Electro-Permanent Magnet" technology has been officially recognized with a national patent (Patent No.: CN223213633U).
• Benchmark customer endorsements: We have established deep partnerships with industry leaders such as Hudong-Zhonghua, Jiangnan Shipyard, Zoomlion, and XCMG Group. Their cutting-edge technology solutions have been seamlessly integrated into national-level smart manufacturing projects, including Tianqiao Jiacheng’s 5G-enabled intelligent production line and Sany Heavy Industry’s Lighthouse Factory.

Conclusion

Through technological innovation, scenario-specific customization, and safety-focused design, Qianhao Magnetic Electric has developed comprehensive solutions tailored to every aspect of port and terminal operations—ranging from ultra-thin plates to ultra-heavy loads, and from simple lifting tasks to complex sorting processes. Their electro-permanent lifting magnets not only enhance operational efficiency and safety but also accelerate the transformation of port logistics toward greener, smarter, and fully automated systems. Looking ahead, with the integration of cutting-edge technologies such as AI-powered visual recognition and IoT, Qianhao Magnetic Electric is poised to further expand into high-end application scenarios, offering a "China Solution" that drives the global maritime industry's transition to intelligent equipment upgrades.