Product Description
Engineered with precision in Hefei, this 2021 ZX70 demonstrates Hitachi's commitment to hydraulic excellence and mechanical reliability. Powered by a robust ISUZU CC-4JG1 engine delivering 40.5kW at 2000rpm, this 7-ton excavator combines a sophisticated variable piston pump system (3 main pumps plus 1 gear pump) with 31.4 MPa main overflow pressure for consistent, responsive performance across demanding applications.
Technical specifications underscore its capability: 55kN bucket digging force, 38kN arm digging force, and a maximum digging reach of 6,320mm provide substantial working range for its class. The reinforced 1,620mm arm and 3,720mm boom configuration optimize breakout force while maintaining a compact 6,080mm transport length. Water-cooled 4-cylinder direct injection ensures thermal stability during extended operation.
Key performance metrics include:
- Operating weight: 6,510kg with 0.3m³ bucket capacity
- Dual-speed travel: 3.4/5.0 km/h for site mobility
- 11.3 rpm rotation speed with 1,750mm tail swing radius
- 70% (35°) grading ability on challenging terrain
- 135L fuel capacity supporting extended shifts
Currently located in Shenzhen, Guangdong, th
| Specifications | Value |
|---|---|
| No. | 994146 |
| Tonnage (tons) | 7 |
| Working weight (kg) | 6510 |
| Bucket capacity (m³) | 0.3 |
| Boom length (mm) | 3.72 |
| Rod length (mm) | 1.62(reinforced type) |
| Country of origin | Hefei, Anhui Province |
| power | Traditional power |
| manufacturer | Joint venture/Import |
| bucket | backhoe |
| Engine type | ISUZU CC-4JG1 |
| Rated power (kw/rpm) | 40.5/2000 |
| Cooling mode | water-cooling |
| Number of cylinders (PCS) | 4 |
| Displacement (L) | 3.318 |
| Working form | Direct injection |
| Ground specific pressure (Kpa) | 30 |
| Rotation speed (rpm) | 11.3 |
| Climbing ability (%) | 70/35 ° |
| Bucket digging force (kN) | 55 |
| Rod digging force (kN) | 38 |
| Travel speed (km/h) | 3.4/5.0 |
| Main overflow set pressure (Mpa) | 31.4 |
| Rotary hydraulic motor type | Variable piston pump ×1 |
| Type of walking hydraulic motor | Variable piston pump ×2 |
| Main pump type | Variable piston pump ×3+ gear pump ×1 |
| Fuel Tank (L) | 135 |
| Hydraulic Tank (L) | 60(over 100) |
| Engine Oil changes (L) | 12 |
| Total transport length (mm) | 6080 |
| Total transport width (mm) | 2260 |
| Total transport height (mm) | 2600 |
| Full cab height (mm) | 2600 |
| Counterweight ground clearance (mm) | 760 |
| Minimum ground clearance (mm) | 360 |
| Back end turning radius (mm) | 1750 |
| Total track length (mm) | 2765 |
| Track gauge (mm) | 1750 |
| Track plate width (mm) | 450 |
| Total track width (mm) | 2200 |
| Track ground length (mm) | 2140 |
| Maximum digging radius (mm) | 6320 |
| Maximum digging depth (mm) | 4170 |
| Maximum excavation height (mm) | 7150 |
| Maximum unloading height (mm) | 5060 |
| Maximum vertical digging depth (mm) | 3730 |
| Bulldozer lift or depth (mm) | No bulldozer |
WhatsApp
Facebook
