コマツ（小松製作所） PC 40 MR-3

# KOMATSU PC40MR-3 Mini Crawler Excavator Specification ## 1. Basic Machine Data - Model: KOMATSU PC40MR-3 Short Tail Swing Mini Hydraulic Excavator - Standard Operating Weight (Enclosed ROPS cab + 300mm steel track + full fluids + standard bucket): **4035 kg** - Standard Heaped Bucket Capacity (ISO): **0.14 m³; optional range: 0.12~0.16 m³** - Standard Track Shoe Width: 300 mm steel track; rubber track optional - Fuel Tank Capacity: 65 L - Hydraulic Oil Tank Capacity: 55 L - Standard Boom Length: 2750 mm; Standard Dipper Arm Length: 1370 mm ## 2. Engine System - Engine Manufacturer: KOMATSU - Engine Model: **4D88E-5** - Engine Type: 4-cylinder inline, water-cooled, naturally aspirated 4-cycle direct injection diesel engine - Displacement: 2189 cc (2.189 L) - Gross Rated Power: 29.5 kW @ 2400 rpm - Net Rated Power (ISO 9249): **28.5 kW @ 2400 rpm** - Max Torque: 134 N·m @ 1400 rpm - Air filter: Single-stage dry type with cyclone pre-cleaner ## 3. Hydraulic System - Main Pumps: 2 variable displacement axial piston pumps (CLSS closed-center load sensing system) - Total Max Main Pump Flow: 98 L/min - Auxiliary Hydraulic Max Output Flow (for hydraulic breaker/auger): 19 L/min - Main System Relief Pressure: 26.5 MPa - Swing Circuit Pressure: 21.0 MPa - Standard proportional auxiliary piping for breaker, auger & log grapple - Boom & arm cylinder safety holding valves equipped - Two working modes: Standard / Economy ## 4. Working Performance Parameters (Unit: mm) - Max Digging Depth (blade lowered): 3350 - Max Vertical Wall Digging Depth: 2680 - Max Ground Digging Radius: 5680 - Max Dumping Height: 3535 - Max Digging Height: 5155 - Bucket Breakout Force (ISO): 30.4 kN - Arm Crowd Force (ISO): 22.1 kN - Travel Speed (Low / High): 2.4 / 4.5 km/h - Max Travel Speed: **4.5 km/h** - Swing Speed: 9.0 rpm - Boom Swing Angle: Left 85° / Right 50° - Gradeability: 30° (58%) - Minimum Ground Clearance: 290 mm ## 5. Overall Transport Dimension (Standard Cab Configuration, mm) - Overall Transport Length: 5160 - Overall Transport Width: 1960 - Overall Transport Height (Cab Top): 2550 - Transport Size (L × W × H): **5160 × 1960 × 2550**