卡特 303.5 E CR

### CAT 303.5E CR – Mini Excavator #### 1. Engine - **Model**: Cat C1.8 (3-cylinder, diesel) - **Net Power (ISO 9249)**: **23.6 kW / 31.6 hp @ 2,400 rpm** - **Gross Power**: 24.8 kW / 33.3 hp - **Displacement**: 1.8 L / 110 in³ - **Bore × Stroke**: 87 mm × 102.4 mm - **Emission**: EU Stage IIIA / Tier 4 Interim #### 2. Operating Weight - **Canopy**: **3,508 kg (7,734 lb)** - **Cab**: **3,692 kg (8,139 lb)** #### 3. Dimensions (Standard Stick) - **Overall Length**: 4,730 mm (15.5 ft) - **Overall Width**: 1,780 mm (5.8 ft) - **Overall Height (Cab Top)**: 2,500 mm (8.2 ft) - **Tail Swing Radius**: 1,005 mm (39.6 in) - **Track Shoe Width**: 300 mm (12 in) #### 4. Digging Performance - **Max Digging Depth**: **3,180 mm (10'4")** - **Max Horizontal Reach**: 5,200 mm (17.1 ft) - **Max Cutting Height**: 4,920 mm (16.2 ft) - **Bucket Capacity**: **0.11–0.18 m³ (0.14–0.24 yd³)** - **Bucket Breakout Force**: 28.5 kN - **Arm Tearout Force**: 20.2 kN #### 5. Travel & Swing - **Travel Speed – Low**: 2.6 km/h (1.6 mph) - **Travel Speed – High**: 4.6 km/h (2.8 mph) - **Max Traction Force**: 31.0 kN (low) / 16.9 kN (high) - **Swing Speed**: **9 rpm** - **Swing Torque**: 8.5 kN·m - **Gradeability**: 30° #### 6. Capacities - **Fuel Tank**: 52 L - **Engine Oil**: 5.5 L - **Cooling System**: 5.5 L - **Hydraulic Tank**: 38 L #### 7. Key Features - **Zero Tail Swing (ZTS)**: Rear stays within track width - **Boom Swing**: Left 75° / Right 50° - **Auxiliary Hydraulics**: 2-way, variable flow (0–25 L/min) - **Certifications**: ROPS/TOPS/FOPS Level I