Product Description
Engineered with Komatsu's proven SAA6D125E-3 turbocharged diesel engine, this PC450-7 delivers 259 kW at 1850 rpm through a 6-cylinder, water-cooled direct injection system with 11.04L displacement. Hydraulic performance centers on a high-capacity 690 l/min main pump, driving dual axial plunger travel motors and a single rotary motor for precise control across demanding excavation cycles. Operating at 43,000 kg working weight with 2.1 m³ bucket capacity, the machine generates 278 kN bucket digging force and 233 kN arm digging force—sufficient for deep trenching and mass earthmoving applications.
Dimensional capabilities include:
- Maximum digging reach: 12,005 mm
- Maximum digging depth: 7,790 mm
- Maximum dumping height: 7,625 mm
- 7,060 mm boom and 3,380 mm arm configuration
Built under Komatsu's joint-venture manufacturing standards, this 2016 unit from Zhejiang Province combines robust hydraulic architecture with field-proven mechanical components. Three-speed travel system (3.0/4.4/5.5 km/h) and 70% gradeability ensure mobility across variable terrain. Currently located in Wenzhou, ready for international shipment.
| Specifications | Value |
|---|---|
| No. | 1027452 |
| Tonnage (tons) | 45 |
| Working weight (kg) | 43000-43420 |
| Bucket capacity (m³) | 2.1 |
| Boom length (mm) | 7060 |
| Rod length (mm) | 3380 |
| power | Traditional power |
| manufacturer | Joint venture/Import |
| bucket | backhoe |
| Engine type | Komatsu SAA6D125E-3 |
| Rated power (kw/rpm) | 259/1850 |
| Cooling mode | water-cooling |
| Cylinder diameter × stroke (mm) | 125 x 150 |
| Number of cylinders (PCS) | 6 |
| Displacement (L) | 11.04 |
| Working form | 6-cylinder, water-cooled, direct injection, turbocharged, electronic speed regulation; Cylinder diameter × stroke: |
| Ground specific pressure (Kpa) | 84.1 |
| Rotation speed (rpm) | 9 |
| Climbing ability (%) | 70/35 ° |
| Bucket digging force (kN) | 278 |
| Rod digging force (kN) | 233 |
| Travel speed (km/h) | 3.0/4.4/5.5 |
| Rotary hydraulic motor type | Axial plunger type ×1 |
| Type of walking hydraulic motor | Axial plunger type x 2 |
| Maximum flow of main pump (l/min) | 690 |
| Traveling Hydraulic Circuit (Mpa) | 37.3 |
| Rotary Hydraulic Circuit (Mpa) | 27.9 |
| Control Hydraulic Circuit (Mpa) | 3.2 Pilot oil circuit |
| Hydraulic crushing pipeline is standard | no |
| Bucket cylinders - Number × diameter × stroke (mm) | 160 * 1270 * 110 |
| Bucket rod cylinders - Number × diameter × stroke (mm) | 185 * 1985 * 130 |
| Boom cylinders - Number × diameter × stroke (mm) | 160 * 1570 * 110 |
| Fuel Tank (L) | 650 |
| Hydraulic Tank (L) | 248 |
| Engine Oil changes (L) | 37 |
| Coolant (L) | 36 |
| Total transport length (mm) | 12040 |
| Total transport width (mm) | 3340 |
| Total transport height (mm) | 3660 |
| Full cab height (mm) | 3265 |
| Counterweight ground clearance (mm) | 1320 |
| Minimum ground clearance (mm) | 555 |
| Back end turning radius (mm) | 3605 |
| Total track length (mm) | 5055 |
| Track gauge (mm) | 2890(2392 when contracted) |
| Track plate width (mm) | 600/700 |
| Total track width (mm) | 3490(2992 when contracted) |
| Track ground length (mm) | 4020 |
| Maximum digging radius (mm) | 12005 |
| Maximum digging depth (mm) | 7790 |
| Maximum excavation height (mm) | 10925 |
| Maximum unloading height (mm) | 7625 |
| Maximum vertical digging depth (mm) | 6600 |
| Bulldozer lift or depth (mm) | No dodging plate |
| Maximum excavation radius of stop surface (mm) | 11800 |
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