小松 PC 20 MR

### KOMATSU PC20MR– Technical Specifications (English) **Mini Excavator Standard Configuration Factory Data** --- #### 1. Basic Data - **Model**: PC20MR - **Type**: Compact Crawler Excavator (Zero Tail Swing) - **Operating Weight**: - PC20MR-2: **2,140–2,390 kg** (canopy/cab) - PC20MR-5: **1,940–1,950 kg** - **Standard Bucket Capacity**: **0.055–0.066 m³** (range: 0.04–0.09 m³) - **Counterweight**: **340 mm ground clearance** --- #### 2. Engine - **Model**: **Komatsu 3D76E-5N (PC20MR-2)** / **3D76E-6 (PC20MR-5)** - **Type**: 3-cylinder, water-cooled, 4-cycle diesel - **Rated Power**: - **15.5 kW (20.8 HP) @ 2,500 rpm** (PC20MR-2) - **15.4 kW (20.9 HP) @ 2,500 rpm** (PC20MR-5) - **Emission Standard**: **EU Stage V / Tier 4 Final (PC20MR-5)** - **Fuel Tank Capacity**: **28 L** --- #### 3. Hydraulic System - **System Type**: Load-sensing hydraulic system - **Main Pumps**: 1 × variable displacement piston pump + 1 × gear pump - **Max Flow**: **53.4 L/min** - **System Pressure**: **24.5 MPa (245 bar)** - **Swing Speed**: **8.9 rpm** --- #### 4. Working Ranges (std. boom & arm) - **Max Digging Depth**: **2,750 mm** - **Max Ground Reach**: **4,170 mm** - **Max Dumping Height**: **2,820 mm** - **Max Digging Height**: **4,100 mm** - **Bucket Tear-out Force**: **19.2 kN** - **Arm Crowd Force**: **13.9 kN** --- #### 5. Travel Performance - **Max Travel Speed**: **4.5 km/h (High) / 2.5 km/h (Low)** - **Track Shoe Width (Std)**: **300 mm** (rubber track) - **Ground Pressure**: **26.9 kPa** - **Gradeability**: **30° (58%)** --- #### 6. Dimensions (mm) - **Transport Length**: **3,810** - **Transport Width**: **1,200** - **Transport Height**: **2,520** - **Tail Swing Radius**: **800 mm** --- #### 7. Capacities - **Hydraulic Tank**: **19 L** - **Engine Oil**: **3 L** - **Cooling System**: **4 L**