Komatsu PC 40 MR

### Komatsu PC40MR（4‑ton Mini Crawler Excavator）Specifications #### 1. Engine - Model: **Komatsu 4D88E‑5** (4‑cylinder, water‑cooled, diesel) - Rated Power: **29.4 kW / 40.0 hp @ 2,200 rpm** - Displacement: **2.2 L** - Emission: **Tier 3 / Stage IIIA / China National III** - Fuel Tank Capacity: **65 L** - Hydraulic Tank Capacity: **55 L** #### 2. Operating Weight & Bucket - Operating Weight: **4,790 kg** - Standard Bucket Capacity: **0.16 m³ (ISO 7451)** - Bucket Width (std): **650 mm** - Bucket Digging Force: **30.4 kN** - Arm Digging Force: **22.1 kN** #### 3. Hydraulics & Performance - Main Pump: **Variable displacement piston pump** - Main Pump Flow: **110 L/min** - Relief Pressure: **22.0 MPa (220 bar)** - Swing Speed: **9.0 rpm** - Travel Speed (High/Low): **4.6 / 2.8 km/h** - Ground Pressure: **26.3 kPa** - Gradeability: **58% (30°)** #### 4. Working Range - Max Digging Radius: **5,580 mm** - Max Digging Depth: **3,820 mm** - Max Dumping Height: **4,650 mm** - Max Digging Height: **5,155 mm** - Rear Swing Radius: **1,060 mm** #### 5. Transport Dimensions - Length × Width × Height: **5,160 × 1,560 × 2,550 mm** - Track Shoe Width: **400 mm** - Blade (W × H): **1,560 × 300 mm**