Product Description
Engineered with precision hydraulics and proven power systems, this 2015 Hitachi ZX70-5G represents a benchmark in the 7-ton excavator class. At its core sits a Yanmar 4TNV98-AVHBW engine delivering 42.4 kW at 2100 rpm through a water-cooled, 4-cylinder configuration with 3.318L displacement. The hydraulic architecture features three variable axial piston pumps plus one gear pump, generating a combined maximum flow of 178.5 L/min at 26 MPa working pressure, ensuring responsive control across all functions.
Performance specifications demonstrate the model's capability:
- Maximum digging reach: 6,320 mm with 4,170 mm depth capacity
- Bucket digging force: 55 kN; arm digging force: 40 kN
- Operating weight: 6,700 kg with 0.33 m³ bucket capacity
- Travel speeds: 5.0 km/h (high) / 3.4 km/h (low)
- Rotation speed: 10.7 rpm with 70% grading ability
Currently located in Hangzhou, Zhejiang, this joint-venture manufactured unit combines Japanese engineering standards with practical jobsite durability. Compact transport dimensions (6,080 × 2,260 × 2,600 mm) facilitate efficient mobilization while maintaining robust structural integrity for demanding excavation applications.
| Specifications | Value |
|---|---|
| No. | 1010205 |
| Tonnage (tons) | 7 |
| Working weight (kg) | 6700 |
| Bucket capacity (m³) | 0.33 |
| Country of origin | Hefei, China |
| power | Traditional power |
| manufacturer | Joint venture/Import |
| bucket | backhoe |
| Engine type | Yanmar Yanmar 4TNV98-AVHBW |
| Rated power (kw/rpm) | 42.4/2100 |
| Cooling mode | water-cooling |
| Cylinder diameter × stroke (mm) | 98 mm×110 mm |
| Number of cylinders (PCS) | 4 |
| Displacement (L) | 3.318 |
| Working form | 4 stroke, water cooled, direct injection |
| Ground specific pressure (Kpa) | 31 |
| Rotation speed (rpm) | 10.7 |
| Climbing ability (%) | 70% (35 °) |
| Bucket digging force (kN) | 55 |
| Rod digging force (kN) | 40 |
| Maximum tractive force (kN) | 47.8 |
| Travel speed (km/h) | High 5.0/ Low 3.4 |
| Turning torque (Nm) | 12.9 |
| Rotary hydraulic motor type | 1 axial plunger motor |
| Type of walking hydraulic motor | 2 variable axial piston motors |
| Maximum flow of main pump (l/min) | 2 x 63 x 52.5 + 1 |
| Traveling Hydraulic Circuit (Mpa) | 31.4 |
| Rotary Hydraulic Circuit (Mpa) | 22.6 |
| Main pump type | 3 variable axial piston pumps +1 gear pump |
| Working Hydraulic Circuit (Mpa) | 26 |
| Pilot Oil Circuit (MPa) | 3.9 |
| Pilot pump flow (L/min) | 21 |
| Bucket cylinders - Number × diameter × stroke (mm) | 1 x 85 x 55 |
| Bucket rod cylinders - Number × diameter × stroke (mm) | 1 x 95 x 60 |
| Boom cylinders - Number × diameter × stroke (mm) | 1 x 115 x 65 |
| Fuel Tank (L) | 135 |
| Hydraulic Tank (L) | 60 |
| Engine Oil changes (L) | 12.3 |
| Coolant (L) | 8 |
| Hydraulic System (L) | 100 |
| Total transport length (mm) | 6,080 |
| Total transport width (mm) | 2,260 |
| Total transport height (mm) | 2,600 |
| Full cab height (mm) | 2,600 |
| Counterweight ground clearance (mm) | 760 |
| Minimum ground clearance (mm) | 360 |
| Minimum turning radius of front working device (mm) | 1,720 |
| Back end turning radius (mm) | 1,750 |
| Onboard width (mm) | 2,260 |
| Total track length (mm) | 2,765 |
| Track gauge (mm) | 1,750 |
| Track plate width (mm) | 450 |
| Total track width (mm) | 2,200 |
| Maximum digging radius (mm) | 6320 |
| Maximum digging depth (mm) | 4,170 |
| Maximum excavation height (mm) | 7150 |
| Maximum unloading height (mm) | 5060 |
| Maximum vertical digging depth (mm) | 3,730 |
| Bulldozer lift or depth (mm) | 400 x 280 |
| Dodging plate width × height (mm) | 2320 x 435 |
| Maximum excavation radius of stop surface (mm) | 6,170 |
| Maximum effective digging depth (mm) | 3,800 |
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