حفارة مجنزرة Hyundai R305LC-9T

1. Weights and Dimensions
• Operating Weight: Typically 30,200 kg (66,580 lb). This can change based on the choice of arm (e.g., mono-arms are more common in this class), track shoe width, and counterweight.
• Transport Dimensions:
◦ Length: 10,690 mm (35 ft 1 in)
◦ Width: 3,190 mm (10 ft 6 in) - With 600mm shoes.
◦ Height: 3,350 mm (11 ft 0 in) - To top of cab.
2. Engine (Power & Emissions)
• Manufacturer & Model: Cummins B6.7
• Emission Standard: Compliant with Tier 4 Final (USA) and Stage V (Europe) regulations. It uses a simple DOC/SCR after-treatment system (with Diesel Exhaust Fluid - DEF/AdBlue), eliminating the need for a complex and maintenance-heavy Diesel Particulate Filter (DPF).
• Net Power: 162 kW (217 hp) @ 2,000 rpm. This provides strong performance for digging and lifting.
3. Hydraulic System
• Pumps: Two variable displacement axial piston pumps provide a high combined flow, ensuring smooth, powerful, and responsive operation.
• Main Relief Valve Pressure: 34.3 MPa (4,974 psi) - This high pressure contributes to the strong digging forces.
• Pilot Pressure: 3.9 MPa (566 psi) - Provides smooth and easy control of the machine.
4. Performance
• Digging Forces:
◦ Bucket Digging Force: 220 kN (49,450 lbf)
◦ Arm Digging Force: 183 kN (41,140 lbf)
• Digging Reach: Up to 10,450 mm (34 ft 3 in)
• Digging Depth: Up to 7,320 mm (24 ft 0 in)
• Loading Height: Up to 7,190 mm (23 ft 7 in)
• Travel System:
◦ Speed: Two-speed (High/Low)
◦ Drawbar Pull: 257 kN (57,780 lbf)
◦ Gradeability: 70% (35°)
5. Capacities
• Fuel Tank: 460 Liters (121.5 US gal) - Provides long operating hours between refuels.
• DEF Tank: Typically around 25 Liters (6.6 US gal).
• Hydraulic Oil: ~230 Liters (61 US gal) (including system + tank).
• Swing System: ~18 Liters (4.8 US gal)
6. Undercarriage
• Shoe Widths: Available in various widths, with 600 mm (24 in) being a common standard.
• Track Gauge: 2,590 mm (8 ft 6 in)
• Length of Track on Ground: 3,770 mm (12 ft 4 in) - Provides good stability.