Technical Parameter
| Conventional parameters | |
|---|---|
| Equipment Model | HT90-7 |
| Model Abbreviation | 90 |
| Excavator Weight (t) | 8.060 |
| Traveling Method | Crawler |
| Bucket Type | Backhoe |
| Operating Conditions | General purpose |
| Engine (Fuel) | |
| Engine Brand | 洋马 |
| Model | 4TNV98T-ZCSTY |
| Type | Vertical、Four-stroke、Water-cooled、Direct Injection、Supercharged |
| Rated Power (kW) | 54.3 |
| Rated Speed (r/min) | 2200 |
| Performance Parameters | |
| Operating Weight (kg) | 8060 |
| Bucket Capacity (m³) | 0.36 |
| Travel Speed (High/Low) (km/h) | 4.5/2.3 |
| Swing Speed (rpm) | 13-14 |
| Slope Climbing Ability(%) | 70 |
| Bucket Digging Force (kN) | 55 |
| Arm Digging Force (kN) | 30 |
| Arm Length (mm) | 3710 |
| Boom Length (mm) | 1800 |
| Machine Dimensions | |
| Length × Width × Height (Transportation Status) (mm) | 6300*2380*2700 |
| Clearance Over Counterweight (mm) | 820 |
| Track Gauge (mm) | 1710 |
| Minimum Ground Clearance (mm) | 380 |
| Rear End Swing Radius (mm) | 1980 |
| Working Range | |
| Maximum Digging Radius (mm) | 6370 |
| Maximum Digging Depth (mm) | 4150 |
| Maximum Digging Height (mm) | 7260 |
| Maximum Dumping Height (mm) | 5200 |
| Blade Width × Height (mm) | 2260*400 |
| Fluid Capacities | |
| Fuel Tank (L) | 125 |
| Hydraulic Tank (L) | 75 |
| Engine Oil Replacement Volume (L) | 12 |
| Coolant Capacity (L) | 25 |
| Hydraulic System | |
| Main Relief Valve Setting Pressure (Mpa) | 27 |
| Maximum Flow Rate of Main Pump (L/min) | 2*80+1*26 |
| Working Hydraulic Circuit (Mpa) | 27 |
| Travel Hydraulic Circuit (Mpa) | 27 |
| Swing Hydraulic Circuit (Mpa) | 24 |
| Maximum Pressure of Pilot System (Mpa) | 3.9 |