حفارة كاتربيلر 305.5E2 مستعملة

I. Basic Parameters

Model Name: Caterpillar 303 CR Mini Hydraulic Excavator

🔧 Engine

Engine Model: Cat C1.1 Turbo

Net Power (ISO 9249): ~23.6 hp / 17.6 kW

Rated Power (ISO 9249): ~24.7 hp / 18.4 kW

Displacement: ~1.1 L (69 in³)

Emission Standard: Complies with U.S. EPA Tier 4 Final / EU Stage V emission requirements

⚖️ II. Weight and Load Capacity
Item Value
Operating Weight, Maximum ~7,817 lb (~3,545 kg)
Minimum Operating Weight (with canopy) ~6,670 lb (~3,025 kg)
Minimum Operating Weight (with cab) ~6,924 lb (~3,140 kg)
Maximum Operating Weight (with canopy) ~7,552 lb (~3,425 kg)
Maximum Operating Weight (with cab) ~7,817 lb (~3,545 kg)

The above weights depend on configuration, including cab, steel tracks, boom length, and additional counterweights.

📏 III. Dimensions and Operating Range (Long Stick / Standard)
Long Stick

Maximum Digging Depth: ~116.1 in / 2,950 mm

Maximum Horizontal Reach: ~5,110 mm

Maximum Dump Height: ~1,310 mm (~3,600 mm)

Standard Stick

Maximum Digging Depth: ~104.3 in / 2,650 mm

Maximum Ground Reach: ~4,830 mm

Additional Dimensions

Overall Transport Length: ~4,510 mm

Transport Height: ~2,480 mm

Track Width: ~300 mm

Tail Swing Radius: ~775 mm (without additional counterweight)

🚶‍♂️ IV. Travel and Power
Item Value
Travel Speed (High) ~4.5 km/h
Travel Speed (Low) ~2.6 km/h
Maximum Drawbar Pull (High) ~14.7 kN
Maximum Drawbar Pull (Low) ~31.4 kN
Maximum Gradeability ~30 °
Ground Pressure (Min/Max) ~28.3–32.8 kPa

💧 V. Hydraulic System and Operation

Hydraulic System Type: Load Sensing + Variable Displacement Hydraulic Pump

Fuel Tank Capacity: ~45 L

Cooling System Capacity: ~4.0 L

Engine Oil Capacity: ~4.0 L

Hydraulic Tank Capacity: ~18.0 L

Total Hydraulic System Capacity: ~35.0 L

🔉 VI. Noise and Comfort (Reference)

Operator Sound Pressure: ~78 dB(A)

Exterior Sound Pressure: ~94 dB(A)