SD42-3 crawler bulldozer is characterized by advanced structure, high productivity, good economy, high adaptive capacity, and comfortable driving and operation and is a high-power bulldozer applicable to national large-scale infrastructure construction. This bulldozer is mainly used for large-scale project such as mine and open pit coal mine and can adapt to severe operating conditions.
●The working device uses pilot control, having good micro-action performance and needing less operational efforts.
●The floating running system makes the bulldozer apply to various complex road conditions, realizes the high-efficiency vibration reduction and increases comfort and reliability of chassis.
●The cab with FOGS producing low noise and complying with national safety standard is used, having high tightness. 
●Key positions of large-sized structural parts are strengthened on design, thus the reliability is increased.
●Large display instrument is used, realizing fault self-detection.
●The combination of large-capacity semi-U-shaped blade and high-efficiency engine provides excellent operating capacity for the bulldozer.
●The hexahedral shock absorbing cab, which has artistic appearance, wide field of vision and is comfortable to operate and used.
●SD42-3 is equipped with high-efficiency supercharged engine, having high power performance, reliability and durability.
●SD42-3 adopts the modified hydraulic drive, hydraulic control and other advanced technologies, thus it has advanced structure, reliable quality and is flexible to operate; SD42-3 also adopts patented technologies of Shantui such as centralized lubrication and pressure measurement and automatic track tensioning.
●SD42-3 can be equipped with various working devices such as straight-tilt blade, angle blade, U-shaped blade, semi-U-shaped blade, single-tooth/3-tooth scarifier and mechanical winch, having strong earth-rock working capacity and wide application field.