In March 2025, Zhengbo Technology, a subsidiary of Xianheng International, achieved an important milestone as its self-developed SA-QY-180 Hydraulic Puller and SA-ZY-2×80 Hydraulic Tensioner successfully completed a comprehensive performance testing program conducted by a leading power engineering research institution in China.

The successful testing demonstrates that Zhengbo Technology's stringing equipment is capable of meeting the demanding requirements of modern high-voltage and ultra-high-voltage (UHV) transmission line construction projects.

Supporting the Growth of Modern Power Transmission Networks

As power grids continue to expand and renewable energy integration increases worldwide, transmission projects require higher levels of efficiency, safety, and reliability.

Stringing equipment plays a critical role during transmission line construction, particularly in UHV projects where long-span conductor installation, high mechanical loads, and strict safety requirements present significant challenges.

From conventional high-voltage transmission lines to advanced UHV and HVDC projects, reliable pullers and tensioners are essential for ensuring safe and efficient conductor installation.

Dedicated to Transmission Line Construction Equipment

Zhengbo Technology specializes in the development, manufacturing, sales, and rental of transmission line construction equipment.

As part of Xianheng International, the company focuses on providing innovative solutions for utility companies, EPC contractors, and power infrastructure projects. Through continuous investment in research and product development, Zhengbo Technology has expanded its portfolio of stringing and construction equipment to meet the evolving needs of the global power industry.

Verified Performance Across the Product Portfolio

The successful completion of the testing program further validates the performance and reliability of Zhengbo Technology's full range of stringing equipment, including:

Hydraulic Pullers

• SA-QY-80 Hydraulic Puller
• SA-QY-150 Hydraulic Puller
• SA-QY-180 Hydraulic Puller
• SA-QY-250 Hydraulic Puller

Hydraulic Tensioners

• SA-ZY-40 Hydraulic Tensioner
• SA-ZY-60 Hydraulic Tensioner
• SA-ZY-2×40 Hydraulic Tensioner
• SA-ZY-2×50 Hydraulic Tensioner
• SA-ZY-2×80 Hydraulic Tensioner

Puller-Tensioner Machines

• SA-ZQY-2×40 Puller-Tensioner
• SA-ZQY-2×50 Puller-Tensioner

These products are designed to support conductor stringing operations for transmission projects up to 1100 kV, covering a wide range of conductor sizes and construction requirements.

One Year, Multiple Product Validations

Within a single year, Zhengbo Technology successfully completed performance validation for more than ten different equipment models, covering its entire portfolio of transmission line stringing equipment.

The product range is capable of supporting conductor installation for transmission projects across multiple voltage levels and conductor specifications, providing flexibility for a wide variety of grid construction applications.

By combining advanced engineering, intelligent control technologies, and robust manufacturing standards, Zhengbo Technology continues to help improve construction efficiency, reduce project timelines, and enhance operational safety in transmission line projects.

Expanding into Global Markets

In line with Xianheng International's global development strategy, Zhengbo Technology continues to expand its international presence.

Today, the company's transmission line construction equipment has been exported to several countries, including Ethiopia and Uzbekistan, supporting power infrastructure development in emerging markets.

Through ongoing innovation and international cooperation, Xianheng International and Zhengbo Technology remain committed to delivering reliable construction equipment solutions for transmission projects around the world.