コベルコ建機 SK 55 SR

### KOBELCO SK55SR #### 1. Engine - Model: **Yanmar 4TNV88C** - Type: Water-cooled, 4-cylinder, direct-injection diesel - Rated Power: **27.9 kW / 37.9 hp @ 2,400 rpm** (ISO 14396) - Displacement: **2.189 L** - Emission: **Stage V / Tier 4 Final** - Fuel Tank: **75 L** #### 2. Weight & Dimensions - Operating Weight: **5,260 kg** (cab) - Transport Length: **5,230 mm** - Transport Width: **1,960 mm** - Transport Height: **2,600 mm** - Track Shoe Width: **400 mm** - Ground Pressure: **28.7 kPa** (cab) - Standard Bucket Width: **650 mm** #### 3. Digging Performance - Bucket Capacity: **0.16 m³ (heaped)** - Max Digging Depth: **3,590 mm** - Max Ground Reach: **5,750 mm** - Max Dumping Height: **3,680 mm** - Bucket Digging Force: **35.2 kN** - Arm Crowding Force: **24.6 kN** #### 4. Hydraulics - Pumps: 2 variable displacement pumps + 1 gear pump - Max Flow: **2×49.9 + 33.8 L/min** - System Pressure: **23.0 MPa** - Hydraulic Oil Tank: **27.9 L** #### 5. Travel & Swing - Travel Speed (High/Low): **4.0 / 2.2 km/h** - Swing Speed: **8.5 rpm** - Gradeability: **58% (30°)** - Drawbar Pull: **54.9 kN** #### 6. Standard Equipment - 1.69 m arm - 1,960 mm dozer blade - ROPS/FOPS cabin - Short tail swing (rear overhang: 980 mm)