
Smooth power transfer is achieved through a combination of a reliable power shift transmission, a stable hydraulic torque converter, and a two-stage straight-tooth structure final drive, all working together to ensure consistent performance during demanding tasks.

The hydraulic tank uses an integrated valve design that not only saves space but also keeps the system clean and well-organized during assembly. This layout meets NAS 9 cleanliness standards, reducing the risk of hydraulic system failures.

A semi-enclosed grille structure with elongated ventilation slots helps protect the engine while improving airflow and cooling efficiency. This design also plays a role in minimizing operational noise.

The wiring harness complies with TS16949 quality standards, providing a dependable foundation for the machine’s electrical system and reducing the chance of circuit-related issues over time.

The tooth blocks are manufactured from high-grade alloy steel and go through advanced forging and die quenching processes. This results in excellent wear resistance and longer service life, outperforming many comparable components on the market.

A semi-rigid suspension system expands the undercarriage’s contact area with the ground, boosting the bulldozer’s traction force up to 203 kN. This setup improves stability, especially when working on uneven terrain or in tough soil conditions.
- Model YD320
- Type Standard Hydraulic Crawler Type
- Engine model Cummins
- Displacement 14.01L
- Rated power 257kW@2000rpm
- Max. torque 1440N.m@1400rpm
- Operating weight 37.2ton
- Dimensions (without ripper) 6535×4150×3515mm
- Grounding length 3150mm
- Ground pressure 0.105MPa
- Track gauge 2140mm
- Dozing capacity 10m³
- Blade width 4150mm
- Blade height 1610mm
- Max. drop below ground 560mm
- Track shoe width 560mm
- Pitch 228.6mm
- Number of track link 41
- Number of carrier roller 4
- Number of track roller 14
- Max. working pressure 14MPa
- Discharge 355L/min
- Max. traction force 280kN
- Forward Speed (F1) 0-3.6km/h
- Forward Speed (F2) 0-6.6km/h
- Forward Speed (F3) 0-11.5km/h
- Rear Speed (R1) 0-4.4km/h
- Rear Speed (R2) 0-7.8km/h
- Rear Speed (R3) 0-13.5km/h
SINOMACH has developed a global footprint, with marketing and service systems covering over 100 countries and regions.
Subsidiaries in West Africa, India, and South Africa, a joint venture in Malaysia, with offices in Mexico, Argentina, and the Philippines.
Supplied large-scale turnkey equipment packages including excavators, loaders, bulldozers, rollers, and graders for major infrastructure projects in Africa, mining operations in South America and the CIS, highways in West Africa, and engineering projects across Central Asia.









Rated power 257 kW@2000 rpm
Dimensions (without ripper) 6535×4150×3515 mm
Max. traction force 280 kN















