Feature sponsored by Test & measurement
Yuchai, the machinery group based in southern China, opts for the NCFN and NCFT electromechanical joining systems from Kistler to manufacture components for engines that comply with the China VI standard. Thanks in part to custom-designed press-fit solutions, Yuchai achieves high product quality, energy efficiency and process transparency.
C
hina’s latest exhaust emission standard for commercial vehicles shows that the country is taking a very serious approach to protecting the environment - in
spite of the pandemic. “China VI”, which is based on Euro VI in many respects, is being introduced in two stages: the VI-a standard already came into force on 1 July 2020, and the strict VI-b norm will apply from 1 July 2023 onwards - with some
drastic goals for reductions of CO2, particulate matter (PM) and oxides of nitrogen (NOx) in the mid double-digit percentage range. Over the long term, this should significantly reduce air pollution due to exhaust gases, especially in the nation’s mega-cities. But how will these requirements impact automobile manufacturers and suppliers to the automotive industry? There will certainly be major changes to the way vehicles are designed, manufactured and operated. Guangxi Yuchai Machinery Co., Ltd. (GYMCL
or Yuchai for short), has its headquarters at Yulin in the Guangxi Zhuang Autonomous Region (southern China). Yuchai numbers among those automobile manufacturers who foresaw the transformation at an early stage. Founded in 1951, this corporate group has seven other plants throughout China where it produces engines for trucks, buses and other commercial vehicles. With over 15,000 employees, Yuchai posts annual sales of RMB 40 billion (more than €5 billion). As one of China’s market and technology leaders for combustion engines,
Three maXYmos NC process monitoring systems - with the matching display module - are used to control joining systems from Kistler at Yuchai’s engine production plant in southern China.
GYMCL embraces cutting-edge technologies and collaborates with universities across the globe including Brunel University in London, RWTH Aachen University in Germany, and Shanghai Jiao Tong University.
FOCUSING ON PRODUCT QUALITY AND RESOURCE EFFICIENCY Back in 2016, the foundation stone was laid at Yuchai’s Yulin site for two new production halls geared to manufacturing exceptionally resource- efficient, low-emission diesel engines. From day one, electromechanical joining systems from Kistler were deployed at the relevant stations for the press-fit processes - a choice based on their combination of accuracy, energy efficiency and real-time process monitoring. On 8 January
2018, Yuchai became the first manufacturer in the country to produce China VI-compliant engines with the low emission levels required by the standard - and in 2019, the production line in the second hall also went into operation. This new manufacturing environment features state-of-the-art production lines. As head of Operational Safety, Mr. Liu is responsible for technical equipment, maintenance and troubleshooting in the plant. He explains how things have changed: “We used to operate hydraulic and pneumatic press-fit systems. They
Sustainable driving... and manufacturing
36 September 2022 Instrumentation Monthly
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