حفارة مجنزرة Caterpillar 320D2

# Cat® 320D Hydraulic Excavator Full Official Specifications
## 1. Engine System
- Model: Cat C6.4 ACERT™ Turbocharged 6-Cylinder Diesel
- Rated Net Power (ISO 9249, 2000 rpm): 103 kW / 138 hp
- Gross Power (SAE J1995): 111 kW / 149 hp
- Bore × Stroke: 102 mm × 130 mm (4.02 in × 5.12 in)
- Displacement: 6.37 L / 389 in³
- Emission Standard: EPA Tier 3 / China National III
- Fuel Tank Capacity: 410 L / 108.3 gal
- Engine Oil Capacity: 22 L / 5.8 gal
- Cooling System Volume: 25 L / 6.6 gal

## 2. Operating Weight & Ground Pressure
- Standard 320D (cab, 600mm tracks, standard boom/stick): 21,450 kg / 47,290 lb
- Long Track Version 320DL: 22,600 kg / 49,820 lb
- Counterweight Mass: 3,860 kg / 8,510 lb
- Ground Pressure (600mm triple grouser tracks): 44.2 kPa / 6.4 psi

## 3. Hydraulic System
- Pump Type: Twin variable displacement axial piston pumps
- Total Max Main Flow: 429 L/min / 113 gpm
- Implement Circuit Relief Pressure: 350 bar / 5,075 psi
- Travel Circuit Pressure: 343 bar / 4,974 psi
- Swing Circuit Pressure: 275 bar / 3,988 psi
- Bucket Digging Force (ISO): 143 kN / 32,140 lbf
- Stick Digging Force (ISO): 106 kN / 23,910 lbf
- Standard auxiliary hydraulic lines for breaker, grapple attachments

## 4. Working Ranges (Standard 5.7m Boom + 2.9m Stick, 1.0 m³ Bucket)
- Standard Bucket Capacity: 1.0 m³ / 1.31 yd³
- Maximum Digging Depth: 6,640 mm / 21.8 ft
- Max Digging Depth (2.44m level floor): 6,290 mm / 20.6 ft
- Max Vertical Wall Dig Depth: 5,730 mm / 18.8 ft
- Maximum Ground Reach: 9,830 mm / 32.2 ft
- Maximum Dump Height: 6,460 mm / 21.2 ft
- Maximum Cutting Height: 9,420 mm / 30.9 ft

## 5. Swing System
- Swing Speed: 11.3 rpm
- Max Swing Torque: 82 kN·m / 60,300 lbf·ft
- Rear Swing Radius: 2,830 mm / 9.3 ft
- Counterweight Ground Clearance: 1,050 mm / 3.44 ft

## 6. Undercarriage & Travel Performance
- Standard Track Shoe Width: 600 mm / 23.6 in triple grouser
- Track Gauge: 2,380 mm / 7.81 ft
- Track Length on Ground: 3,450 mm / 11.32 ft
- Low Travel Speed: 3.3 km/h / 2.05 mph
- High Travel Speed: 5.6 km/h / 3.48 mph
- Max Drawbar Traction Force: 206 kN / 46,300 lbf
- Maximum Gradeability: 35° (70%)
- Minimum Ground Clearance: 470 mm / 1.54 ft

## 7. Overall Transport Dimensions
- Total Transport Length: 9,650 mm / 31.66 ft
- Total Transport Width: 2,980 mm / 9.78 ft
- Transport Height (Standard Cab): 3,020 mm / 9.89 ft

## 8. Service Capacities
- Total Hydraulic System Volume: 240 L
- Hydraulic Oil Tank Capacity: 147 L
- Swing Drive Gearbox Oil: 8 L / 2.1 gal per unit

## 9. Standard Key Features
1. ACERT engine technology for reliable power output and low fuel consumption
2. Load-sensing electro-hydraulic system with lift mode (380 bar extra pressure) for heavy lifting
3. 7-inch color LCD monitor with multi-language display and fault self-diagnosis
4. ROPS/FOPS pressurized air-conditioned cab with suspension operator seat
5. Auto-deceleration system to reduce engine speed during idle standby
6. Ground-level service access for daily fluid inspection and maintenance
7. Grease-lubricated sealed track links to extend undercarriage service life
8. Boom and arm holding safety valves as standard safety equipment