S29 High-Horsepower Engine Debut: Cummins Sets a New Benchmark for Global Mining
November 08,2026
On October 28, under the theme "A Legend in Mining, Born for the New," Cummins held the global debut of its S29 next-generation high-horsepower engine platform in Chongqing. Executives from Cummins globally and in China, industry associations, construction-machinery OEM representatives and media attended to witness the opening of Cummins' new era in mining power.
The new 29-liter high-horsepower mining engine launched this time is built on a next-generation platform and produced at the Chongqing Cummins engine intelligent plant. It is suited to 100–120-ton-class mining dump trucks and 150–220-ton-class large excavators, and can be extended to mining equipment such as surface miners, dozers and wheel loaders, with global supply planned to begin in mid-2027. The launch of the S29 marks Cummins' China high-horsepower business moving from "localized import" to a new stage of "China R&D and manufacturing serving global mining."
Harsh conditions drive powertrain upgrades
The demands of global mining scenarios are never a single engine-displacement number. Facing long-term operation under high temperature, extreme cold, high altitude, heavy dust and high intensity — compounded by national emission regulations and operational supervision — mining equipment and powertrains must be highly coordinated, with mining engines in particular delivering excellent performance in power, reliability, economy and adaptability.
Su Zimeng, Chairman of the China Construction Machinery Association, speaking on the newly released "15th Five-Year Plan for the Construction Machinery Industry," stressed that OEMs and suppliers must cooperate fully, with component supply systems adhering to five principles: "demand orientation, anchor leadership, main-supplier integration, joint development and benefit sharing," avoiding formalism that blindly chases the biggest and highest, and ensuring product R&D and manufacturing never depart from market logic. Chairman Su said, "Products must be sellable; what users need, we must be able to build. Final product usability is judged by the OEM, and market acceptance is confirmed by end users." This sets clearer requirements for high-horsepower engine R&D — not just parameters, but reliability under real working conditions and full-lifecycle value.
Jenny Bush, Cummins Vice President and President of the Power Systems business, said: "The S29 is not just a brand-new engine, but a new benchmark for mining power. It brings together multiple innovations in fuel economy, reliability and high power density, delivering strong power to customers through superior performance, optimized total cost of ownership over the lifecycle and future-oriented flexibility." Against the pressure mining customers face in material extraction, transport capacity, lower operating costs and higher efficiency, the S29 launch is essentially Cummins' answer to the need for mining-power iteration with an all-new platform.
A new platform for advancing mining efficiency
The Cummins S29 next-generation high-horsepower engine is not a simple upgrade of an existing platform or a localized adaptation, but an all-new platform designed from the early planning stage for global mining conditions. Wang Tao, Chief Engineer of Cummins Power Systems China, noted that the QSK60 released in the first half of 2026 met the need for localized China power, while the S29 is an all-new platform development led by the China team and benchmarked against the international market — a landmark product marking Cummins' shift from "using supply-chain advantages for localization" to "custom-building from scratch for Chinese and global OEMs."
According to on-site reporting by First Construction Machinery Network, the S29 mining engine delivers excellent power density, with a maximum output of up to 1,300 hp (2,100 rpm, intermittent; final figures subject to validation and certification), providing the power and performance of a larger-displacement engine in a compact installation package. Compared with the previous generation, the S29 achieves a 15% power increase, 10% reliability improvement and 20% improvement in low-speed torque/transient response. Actual data shows the S29 has completed 7,000 hours of bench durability validation and 30,000 hours of on-road planning tests, honing mining-equipment adaptation and long-term stability under real working conditions.
Under current development targets, the S29's minimum brake-specific fuel consumption (BSFC) is expected to reach as low as 180 g/kWh under specific conditions, potentially delivering industry-leading fuel economy in its power class and helping users lower operating costs. For remote mining areas, the S29 maintains strong power at altitudes up to 3,000 meters and achieves cold starts at -25°C without auxiliary preheating.
Source : www.51cm.org
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