| Category | Item | Specification |
|---|---|---|
| Basic Data | Model | ZX120-3G |
| Type | Crawler Hydraulic Excavator | |
| Operating Weight | 12200 kg (standard configuration) | |
| Bucket Capacity (PCSA heaped) | 0.52 m³ | |
| Optional Bucket Range | 0.19 ~ 0.66 m³ | |
| Engine | Engine Model | Isuzu AJ-4JJ1XYSA-03, 4-cylinder turbocharged intercooled diesel |
| Rated Power | 66 kW (90 PS) @ 2000 rpm | |
| Displacement | 2.999 L | |
| Aspiration | Turbocharged, Intercooled | |
| Cooling Type | Liquid cooling | |
| Fuel Type | Diesel | |
| Hydraulic System | Main Pump | Variable displacement axial piston pump |
| Max System Pressure | 34.3 MPa | |
| Pump Flow | 2 × 120 L/min | |
| Control System | HIOS II load sensing hydraulic system | |
| Working Modes | H/P, P, E, L | |
| Swing & Travel | Swing Speed | 13.7 rpm |
| Swing Torque | 34.5 kN·m | |
| Travel Speed (High / Low) | 5.5 / 3.6 km/h | |
| Gradeability | 35° (70%) | |
| Ground Pressure | 38.5 kPa (with 500mm track shoes) | |
| Working Range
(Standard Boom 4.60m + Arm 2.52m) |
Max Digging Depth | 5570 mm |
| Max Digging Reach | 8270 mm | |
| Max Digging Height | 8570 mm | |
| Max Dumping Height | 6160 mm | |
| Bucket Digging Force (ISO) | 99 kN | |
| Arm Digging Force (ISO) | 78 kN | |
| Overall Dimensions | Overall Length | 7660 mm |
| Overall Width | 2490 mm | |
| Overall Height (Cab) | 2740 mm | |
| Rear Swing Radius | 2130 mm | |
| Standard Track Shoe Width | 500 mm; optional 600/700 mm | |
| Track Gauge | 1990 mm | |
| Undercarriage | Track Type | Triple grouser steel track |
| Track Rollers per Side | 5 pcs | |
| Carrier Rollers per Side | 2 pcs | |
| Fluid Capacity | Fuel Tank | 250 L |
| Hydraulic Oil Tank | 140 L | |
| Cab & Attachment | Cab | ROPS / FOPS cabin with air conditioning |
| Standard Boom | 4.60m monoblock boom | |
| Optional Arm Length | 2.10 m / 2.52 m / 3.01 m |
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