卡特 303.5 E CR

### CAT 303.5E CR – Mini Excavator Technical Specifications (English) #### 1. Basic Information - **Model**: CAT 303.5E CR (Compact Radius) - **Type**: Mini Hydraulic Excavator - **Operating Weight (Canopy)**: 3,508 kg (7,734 lb) - **Operating Weight (Cab)**: 3,692 kg (8,139 lb) - **Brand**: Caterpillar (CAT) #### 2. Engine - **Model**: Cat C1.7 - **Net Power**: 17.6 kW (23.6 hp) @ 2,200 rpm - **Gross Power**: 18.4 kW (24.7 hp) @ 2,400 rpm - **Displacement**: 1.7 L (104 in³) - **Emission Standard**: EPA Tier 4 Final / EU Stage V #### 3. Performance - **Bucket Digging Force**: 33.0 kN (7,419 lb) - **Arm Digging Force (Standard)**: 18.9 kN (4,249 lb) - **Swing Speed**: 9.0 rpm - **Travel Speed (High/Low)**: 4.7 / 2.7 km/h - **Gradeability**: 58% #### 4. Dimensions & Capacities - **Max Digging Depth (Standard Stick)**: 2,880 mm (9.6 ft) - **Max Reach (Ground Level)**: 5,200 mm (17.1 ft) - **Transport Length**: 4,730 mm (15.5 ft) - **Transport Width**: 1,780 mm (5.8 ft) - **Transport Height**: 2,500 mm (8.2 ft) - **Track Shoe Width**: 300 mm (11.8 in) - **Fuel Tank Capacity**: 46 L - **Hydraulic Tank Capacity**: 42.3 L #### 5. Hydraulic System - **Main Pump Flow**: 60 L/min (15.9 gal/min) - **Auxiliary Circuit (Primary)**: 60 L/min @ 186 bar - **Auxiliary Circuit (Secondary)**: 27 L/min @ 174 bar