One Belt, One Road, Fruitful Achievements | YGW-500 PC-controlled sleeper static load testing machine of Jinan Liling Testing Machine Co., Ltd. was exported to Serbia and highly recognized by overseas customers.

In 2025, YGW-500 computer-controlled sleeper static load testing machine independently developed and manufactured by Jinan Liling Testing Machine Co., Ltd. was successfully shipped and delivered to Serbian rail transit building materials enterprises, and has now been put into the local sleeper quality inspection production line. After a period of on-the-spot production and use, Serbian customers sent feedback and spoke highly of the stability, test accuracy and intelligent control level of the equipment. This equipment export is an important breakthrough for the high-end railway inspection equipment of Jinan Liling Testing Machine Co., Ltd. to land in the Balkan market, and it is also a vivid epitome of the cooperation between China and Serbia in building the "Belt and Road" infrastructure industry chain.
Hard-core equipment meets the needs of European railway detection
The YGW-500(500kN) sleeper static load testing machine exported to Serbia this time is designed and manufactured in strict accordance with the industry standards of GB/T2611-2007 and JJG (Railway) 158-96, and is specially designed to test the static load crack strength and ultimate bearing capacity of I/II/III concrete sleepers, fork sleepers, bridge sleepers and wide sleepers, which completely matches the reconstruction of the local Hungarian Railway in Serbia.
The equipment adopts a four-column stable host structure, equipped with a fully digital electro-hydraulic servo closed-loop loading system, equipped with 500kN and 200kN multi-channel high-precision load sensors, and the loading rate can be continuously adjusted, which can automatically complete the whole process test of rapid jacking, slow approaching, constant speed loading, 180 seconds load preservation and automatic unloading; Supporting special microcomputer measurement and control software, real-time display of force-time curve, automatic collection, storage and printing of test reports, support for local area network data exchange, full Chinese visual operation, giving consideration to accuracy and ease of use.
The advantages of core technical parameters are outstanding: the indicating accuracy of the whole machine is ≤ 1%, the effective measuring range covers 4%-100% of the full range, the maximum test force is 500kN, the piston stroke is 250mm, the structure of the whole machine is firm and durable, it is suitable for long-term continuous working conditions in overseas factories, the self-weight of the whole machine is about 3 tons, and the integrated servo oil source control cabinet is compact in layout, which is convenient for on-site installation and debugging.
Serbian customers' field use has been well received.
After the equipment has been installed, debugged and trained on site, it has been used in batch for factory sampling inspection of local prestressed concrete sleepers. In the feedback, the technical person in charge of Serbian customers said, "We have compared many European and American testing equipment before, and finally chose China as the sleeper static test machine. The servo loading response of the equipment is sensitive, the load control is stable, the load is kept for a long time without pressure fluctuation, and the positioning of multi-specification sleepers and the transfer design of loading and unloading trolleys are very convenient, which greatly improves our sleeper detection efficiency. The supporting measurement and control system has accurate data and flexible report export, which fully meets the European railway engineering quality inspection and filing standards. The manufacturer's on-site debugging and one-day complete practical training service are in place, and local operators can independently complete all tests and basic maintenance. The equipment has been running in zero failure so far, and it is a professional testing equipment with excellent cost performance and reliability. "
In view of the needs of overseas customers, Jinan Liling Testing Machine Co., Ltd. has equipped the mobile loading trolley, full set of loading supports, jacking mechanism, brand industrial control microcomputer, complete spare parts and Chinese and English operation manuals, arranged professional engineers to remotely guide the installation and wiring during the delivery stage, and completed the training of equipment operation, troubleshooting and daily maintenance procedures simultaneously to ensure the rapid production of overseas customers.
Deeply cultivate overseas markets, China's testing equipment goes to Europe.
Serbia, as the core node of China-Europe land and sea express and Hungary-Serbia railway, is the key fulcrum for China's rail transit equipment to enter the Central and Eastern European market. In recent years, many local railway reconstruction and new construction projects have been concentrated, and the production capacity and quality inspection demand of concrete sleepers have continued to grow.
The YGW-500 sleeper static load testing machine was successfully exported and won favorable comments overseas, which indicated that the railway concrete testing equipment of Jinan Liling Testing Machine Co., Ltd. was substantially recognized in the European market. In the next step, the enterprise will continue to optimize the product internationalization adaptation scheme, upgrade the equipment software and hardware according to the rail transit standards in Europe and Central and Eastern Europe, improve the overseas long-distance after-sales and localization technical service system, deeply participate in the railway infrastructure construction of countries along the Belt and Road with high-precision and intelligent domestic testing equipment, and continuously expand the overseas influence of high-end test equipment made in China.