بلدوزر Caterpillar D8R

# Caterpillar D8R LGP Track-Type Tractor Full Specifications
(LGP = Low Ground Pressure, Wide swamp undercarriage; Metric + Imperial dual units)


## 1. Engine
- Model: Cat 3406C DITA / 3406C TA Inline 6-Cylinder Diesel
- Displacement: 14.6 L (893 cu in)
- Bore × Stroke: 137 mm × 165 mm
- Rated Net Power @2100 rpm (ISO 9249): 226 kW / 303 hp
- Maximum Flywheel Power: 252 kW / 338 hp
- Gross Power: 247 kW / 331 hp
- Rated Speed: 2100 rpm
- Emission Tier: Tier 1 / Stage I (Early); Tier 3 (Late version)

## 2. Weight (LGP Configuration, ROPS Cab + SU Straight Blade + Ripper)
- Operating Weight (LGP): 35,176–36,763 kg / 77,550–81,050 lb
- Shipping Weight (LGP, no blade/ripper): 29,257–30,506 kg / 64,500–67,250 lb

## 3. Undercarriage & Ground Pressure (LGP Core Feature)
- Track Shoe Width (LGP): 915 mm / 36 in
- Track Length on Ground: 3,206 mm / 126.2 in
- Ground Clearance: 528 mm / 20.8 in
- Ground Contact Pressure (LGP): 65 kPa / 9.4 psi
- Standard SU version reference: 560mm shoe, 92kPa ground pressure
- Grouser Height: 84 mm / 3.3 in
- Track Pitch: 216 mm / 8.5 in

## 4. Transmission & Travel Speeds
3-speed power shift transmission, differential steering
### Forward Gears
1st: 3.4 km/h / 2.1 mph
2nd: 6.1 km/h / 3.8 mph
3rd: 10.6 km/h / 6.6 mph
### Reverse Gears
1st: 4.5 km/h / 2.8 mph
2nd: 8.0 km/h / 5.0 mph
3rd: 13.8 km/h / 8.8 mph

## 5. Overall Dimensions (LGP + SU Straight Blade, ROPS Cab)
- Total Length (with blade): 7,540 mm / 296.9 in
- Basic Tractor Length (without blade): 4,554 mm / 179.3 in
- Overall Width (LGP tracks): 3,090 mm / 121.7 in
- Height to Cab Top: 3,447 mm / 135.7 in
- Height to Exhaust Stack: 3,729 mm / 146.8 in

## 6. Service Refill Capacities
- Fuel Tank: 625 L / 158.5 US gal
- Engine Crankcase Oil: 144 L / 38 US gal
- Cooling System: 92 L / 24.3 US gal
- Hydraulic System: 72 L / 19 US gal
- Each Final Drive: 41 L / 10.8 US gal

## 7. Hydraulic System
- Main Pump: Variable Displacement Piston Pump
- System Working Pressure: 276 bar / 4,000 psi
- Maximum Hydraulic Flow: 240 L/min / 63.4 US gal/min

## 8. Working Equipment
### Standard SU Straight Blade (LGP matched)
- Blade Capacity: 5.8 m³ / 7.6 cu yd
- Blade Width: 3,660 mm / 144 in
- Max Lift Height: 1,140 mm / 44.9 in
- Max Digging Depth: 540 mm / 21.3 in
### Optional U-Blade
- Capacity: 8.2 m³ / 10.7 cu yd
- Blade Width: 4,262 mm / 167.8 in
### Single / Multi-Shank Ripper
- Maximum Ripper Penetration Depth: 680 mm / 26.8 in

## 9. Key LGP Feature Description
LGP (Low Ground Pressure) configuration equips extra-wide track shoes and extended track frames, distributing machine weight over a larger contact area. Delivers superior flotation for soft ground, marsh, swamp, mud and low-bearing-capacity construction sites, preventing sinking compared to standard SU dozer.