The D550H 55-Ton Hydrostatic Bulldozer is a large, high-performance machine developed for mining, heavy earthmoving, quarry operations and major infrastructure construction.
Its 405 kW power system, 55.4-ton operating weight and 13.7 m³ semi-U blade provide the pushing capacity required for loose soil, hard ground, raw material transportation and layered site construction.
The hydrostatic drive system eliminates conventional components such as the torque converter, mechanical transmission and steering clutch. Standardized hydraulic pumps and motors provide smooth power transmission, flexible steering and high operational reliability.
The elevated-drive structure positions major transmission components away from rocks, soil and ground impact. This improves the operating environment of the drivetrain and helps extend component service life.
With a maximum traction force of 709 kN, the D550H is suitable for continuous high-load pushing and large-volume material handling.
Large open-pit mines, quarry sites, heavy road construction, bulk material pushing, industrial site preparation, dam projects and large infrastructure earthworks.
| Parameter | Specification |
|---|---|
| Model | D550H |
| Machine Type | Hydrostatic Crawler Bulldozer |
| Operating Weight, Excluding Ripper | 55,400 kg |
| Rated Power | 405 kW |
| Rated Speed | 1,900 rpm |
| Minimum Fuel Consumption | 195 g/kW·h |
| Drive System | Hydrostatic Drive |
| Ground Contact Length | 3,634 mm |
| Maximum Gradeability | 30° |
| Track Shoe Width | 610 mm |
| Number of Track Rollers | 8 per side |
| Number of Carrier Rollers | 1 per side |
| Maximum Traction Force | 709 kN |
| Blade Type | Semi-U Blade |
| Blade Capacity | 13.7 m³ |
| Maximum Blade Lifting Height | 1,014 mm |
| Maximum Blade Tilt | 410 mm |
| Fuel Tank Capacity | 500 L |
| Overall Dimensions | 6,960 × 4,340 × 4,214 mm |