Hollow rod
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Hollow rod

The reason the Hollow Rod (or Hollow Structural Sections, HSS) is such an important structural component lies in its perfect combination of superior mechanical performance and lightweight design. By distributing the material primarily to the perimeter, far from the cross-section's neutral axis, the hollow profile significantly increases the Moment of Inertia. This design allows the component to maintain or even improve its bending capacity and stiffness while reducing weight. This construction offers an excellent strength-to-weight ratio and makes it an efficient closed section for resisting torsional loads. Whether it features the common Circular (CHS), Square (SHS), or Rectangular (RHS) cross-section, the hollow rod exhibits high axial load stability, effectively resisting buckling, which ensures efficient material utilization and structural lightness in building frames, trusses, and mechanical structures.

Why QUNKE
Jiangsu Newqunke Intelligent Technology Co., Ltd.
Jiangsu Newqunke Intelligent Technology Co., Ltd.

Founded in 2008, Wuxi Qunke Machinery Co., Ltd. is a technology-focused enterprise specializing in the R&D, design, mass production and comprehensive solutions of high-performance hydraulic cylinders, pneumatic cylinders and precision hydraulic piston rods.


Headquartered in Wuxi, Jiangsu – a core manufacturing base in the Yangtze River Delta region – the company now covers a total plant area of more than 25,000 square meters and employs hundreds of skilled professionals. Driven by continuous innovation, Qunke develops hundreds of new products each year to meet diverse industrial demands. Its products are widely applied across numerous key sectors, including water conservancy, metallurgy, construction machinery, marine and port equipment, as well as oil fields, mining, piling machinery and excavators.
To support the long-term growth and global layout, Qunke established Jiangsu New Qunke Intelligent Technology Co., Ltd. in 2022 for foreign market expanding and trading. In 2026, we founded Qunke Europe Co., Ltd. , which serves as its European regional headquarters and operation center. The European subsidiary is responsible for local market development, customer sales and support, after-sales service, technical communication and logistics coordination, enabling Qunke to better respond to European customer needs, shorten delivery cycles, and provide efficient, localized services to partners throughout the region. 

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