小松 PC 55 MR

### KOMATSU PC55MR – Specifications #### 1. General - Model: **KOMATSU PC55MR** - Type: Mini Crawler Excavator (Short‑tail swing) - Operating Weight: **5,150 kg (canopy) / 5,270 kg (cab)** - Standard Bucket Capacity: **0.15 m³** (range: 0.055–0.18 m³) - Emission Standard: **EU Stage V / EPA Tier 4 Final** #### 2. Engine - Model: **Komatsu 4D88E‑7** (4‑cylinder, water‑cooled, diesel) - Rated Power (Net): **28.3 kW @ 2,400 rpm** (38 HP) - Gross Power: **29.1 kW (39 HP)** - Displacement: **2.189 L** - Fuel Tank Capacity: **65 L** #### 3. Hydraulic System - Main Pumps: 2 variable displacement pumps - Main Pump Flow: **2 × 38.5 L/min** - Main Relief Pressure: **24.5 MPa** - Auxiliary Flow: **~20 L/min** #### 4. Working Performance - Max. Digging Depth: **4,130 mm** - Max. Digging Reach: **6,220 mm** - Max. Dumping Height: **4,350 mm** - Bucket Digging Force: **42.8 kN** - Swing Speed: **9.0 rpm** - Travel Speed (High/Low): **4.6 km/h / 2.8 km/h** - Gradeability: **30° (58%)** #### 5. Transport Dimensions - Length × Width × Height: **5,550 × 1,960 × 2,550 mm** - Track Width: **400 mm** (rubber track) - Rear Swing Radius: **850 mm**