Connecting the Mountain City's Arteries! Chongqing Yonggui Helps Customized First Train of Rail Transit Line 27 Roll Off the Production Line

Connecting the Mountain City's Arteries! Chongqing Yonggui Helps Customized First Train of Rail Transit Line 27 Roll Off the Production Line

On July 2, 2026, the first train of Chongqing Rail Transit Line 27 officially rolled off the production line at CRRC Changchun, marking this east-west cross-city express line entering the final sprint phase toward opening. As the core supplier of the project's gangway systems, Chongqing Yonggui Transportation Equipment Co., Ltd. has customized a gangway system tailored to mountainous operating conditions, leveraging robust connection technology to drive the intelligent and green upgrading of Chongqing's rail transit equipment.

A Custom Express Line for the Mountain City, Tackling Complex Mountainous Operations

With a total length of approximately 56 kilometers and a maximum operating speed of 140 km/h, Rail Transit Line 27 connects Bishan to Banan, spanning three major valley zones and featuring extensive sections with steep gradients and sharp-radius curves. It is one of China's most complex urban rail express lines running through the central urban area.
The train unveiled this time is specifically customized for Chongqing's mountainous environment, boasting strong climbing performance, smooth start-stop operation, high passenger capacity, low noise, and energy efficiency. As the flexible connection joint between carriages, the gangway directly determines the train's curve-negotiating capability and passenger safety, making it a core component critical to adapting to such a challenging route.

Yonggui's Custom Gangway – Unlocking Adaptability for Mountainous Rail Transit

Leveraging years of R&D and manufacturing expertise in rail vehicle gangway systems, Chongqing Yonggui has developed a complete customized gangway solution for Line 27, perfectly matching the unique conditions of the mountain city:
✅ Strong environmental adaptability: Withstands swinging caused by steep gradients and sharp-radius curves, ensuring stable carriage connections and long-lasting sealing performance;
✅ Authoritative certifications: Holds IRIS (ISO/TS22163) and EN15085-CL1 international industry certifications, and is recognized as a National High-Tech Enterprise and a "Specialized and Sophisticated" enterprise;
✅ Full-scenario supporting capabilities: Products cover subways, metropolitan express lines, high-speed railways, and rack railways; serves as a long-term supplier to CRRC Changchun and other major manufacturers, and has repeatedly won gangway system centralized procurement projects;
✅ Local engineering expertise: Deeply rooted in Chongqing's mountainous rail transit, with extensive hands-on experience in rack railway and steep-gradient line deployments.

Connecting Citywide Hubs to Build a One-Hour Living Circle in the Mountain City

Upon completion, Rail Transit Line 27 will connect core business districts including University Town, Shapingba, Daping, Nanping, and Chayuan, as well as three major transportation hubs – Shapingba Station, Chongqing Station, and Chongqing East Station. Commuting time from Bishan to Banan will be compressed to less than one hour, forming an integrated metropolitan commuter network.

As a locally based rail transit equipment manufacturer, Chongqing Yonggui continues to deepen its involvement in the city's rail construction: from the nation's first flexible-consist train on Line 24 to the fully automated metropolitan express train on Line 27, Yonggui's gangway systems have consistently served as the "invisible joints" of trains, quietly safeguarding the smooth operation of the city's transportation arteries.
The countdown to Line 27's opening has begun. Looking ahead, Chongqing Yonggui will remain committed to precision manufacturing, relying on reliable gangway systems, door systems, and other core products to connect the city's arteries and propel Chongqing's rail transit forward at full speed.

Source: Rail Transit Trends, Rail World
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