•It adopts originally imported Cummins B3.3T engine which features Tier 2 standards, energy saving, environmental care, and convenient service and maintenance; •It adopts radial seal air filter with pre-filter which effectively prolongs engine life, with fuel filling pump as standard device. •It adopts originally imported hydraulic parts, which features stable and reliable quality, high efficiency, and big digging force;•It adopts reinforced working devices and undercarriage for good adaptability.•The electric control system features real time monitoring, automatic self-diagnosis and recording, electric throttle, and 4 kinds of work modes.•The dozer blade and breaker pipeline are available as standard devices for multiple operations like digging, landfill, breaking, and grading.•The multifunctional GPS can achieve remote control and data transfer so that the real time machine conditions can be known.•The oil return filter element adopts powerful magnet, which effectively improves the safety in the hydraulic system.