Technical Parameter
| Conventional parameters | |
|---|---|
| Equipment Model | JYL621E |
| Model Abbreviation | 621 |
| Excavator Weight (t) | 21 |
| Traveling Method | Tire Type |
| Engine | |
| Engine Brand | Cummins |
| Model | 6B5.9 |
| Rated Power (kW) | 129 |
| Rated Speed (r/min) | 2200 |
| Performance Parameters | |
| Operating Weight (kg) | 21000 |
| Bucket Capacity (m³) | 0.9 |
| Travel Speed (High/Low) (km/h) | 28 |
| Swing Speed (rpm) | 12.5 |
| Slope Climbing Ability(%) | 40 |
| Bucket Digging Force (kN) | 120 |
| Arm Digging Force (kN) | 90 |
| Boom Length (mm) | 2600 |
| Machine Dimensions | |
| Length × Width × Height (Transportation Status) (mm) | 9550*2760*3585 |
| Cabin Full Height (mm) | 3260 |
| Clearance Over Counterweight (mm) | 1435 |
| Wheelbase (mm) | 2960 |
| Minimum Ground Clearance (mm) | 320 |
| Rear End Swing Radius (mm) | 2835 |
| Working Range | |
| Maximum Digging Radius (mm) | 9615 |
| Maximum Digging Depth (mm) | 5915 |
| Maximum Digging Height (mm) | 9665 |
| Maximum Dumping Height (mm) | 6900 |
| Blade Width × Height (mm) | 2400*630 |
| Blade Lifting or Cutting Depth (mm) | 1345 |
| Hydraulic System | |
| Main Relief Valve Setting Pressure (Mpa) | 30 |
| Maximum Flow Rate of Main Pump (L/min) | 200 |