Weichai Power (WEICHAI) and Yuchai Machinery (YUCHAI), as leading enterprises in China's engineering vehicle engine industry, have set global technical benchmarks in the field of heavy machinery and engineering vehicles. Chongqing Wendy Vehicles will systematically analyze the differentiated advantages of the two brands in power performance, adaptation scenarios and service systems through multi-dimensional technical comparison.
Weichai Power: Originated from the industrial accumulation in 1946, its WP series heavy-duty engines use a combination of high-pressure common rail fuel system and selective catalytic reduction (SCR) technology, with a torque reserve coefficient exceeding 1.3, and are designed for extreme working conditions such as mining trucks above 50 tons and large excavators.
Yuchai Machinery: Founded in 1951, it innovatively integrates exhaust gas recirculation (EGR) and particulate matter capture (DPF) technology. The YC6K series of medium and heavy-duty engines have excellent performance in the field of 30-50 tons urban construction vehicles with its lightweight structure.
|
Core indicators |
Weichai WP13G (580 hp) |
Yuchai YC6K13 (560 horsepower) |
|
Cylinder displacement |
12.54L |
12.94L |
|
Peak Torque |
2550 Nm @ 1000 rpm |
2400 Nm @ 1100 rpm |
|
Fuel efficiency |
185 g/kWh |
190 g/kWh |
|
Design life |
1.8 million km |
1.6 million km |
|
Environmental certification |
National VI/Euro VI dual standards |
National VI/Euro VI dual certification |
Technical advantages of Weichai:
High-altitude low-temperature adaptive system, power loss in extreme environment <5%;
Integrated powertrain design, maintenance interval extended to 1,000 service hours;
Global service network includes 78 overseas parts centers;
Adopting German technology, original reverse cooling technology solves heat load problems;
Equipped with large-flow water pump and stratified cooling system, the heat dissipation capacity is leading in the industry;
The thermal efficiency of the body reaches 53.09%, breaking the world record four times in four years.
Technical features of Yuchai:
Low-speed high-torque adjustment, fuel consumption in urban cycle conditions is reduced by 8%;
Dual vortex combustion technology achieves 72dB ultra-quiet operation;
The response time of hybrid special models is shortened by 40%;
Integrating German FEV and Japanese Yamaha technologies, key components are imported from American Ford products, and high-efficiency combustion technology is used to reduce heat source emissions and reduce the pressure of the cooling system.
Weichai recommended scenarios: open-pit mining equipment, transoceanic port tractors, 100-ton crawler cranes;
Yuchai adapted areas: municipal engineering vehicles, fresh food logistics fleets, pumping machinery below 200 tons;
The two brands jointly promise:
International emergency spare parts air transport service;
Resident engineers respond 24/7 hours;
Powertrain 3-year/million-kilometer extended warranty.
The core differences between Weichai and Yuchai are reflected in the three aspects of technology route, market positioning and applicable scenarios: Weichai is good at heavy-duty power systems, and its technology emphasizes redundant design and hardware performance; Yuchai has more advantages in fuel economy and system matching optimization, focusing on the medium and light power market.
