久保田 U 55-4

### KUBOTA U55-4 (Mini Excavator) – Specifications #### 1. Basic Information - **Model**: U55-4 - **Type**: Zero Tail Swing Compact Excavator - **Operating Weight**: **5,400 kg** (11,905 lbs) - **Bucket Capacity (Standard)**: **0.13 m³** (0.17 yd³) - **Bucket Width (Standard)**: **650 mm** (25.6 in) - **Track Width (Rubber/Steel)**: **400 mm** (15.7 in) #### 2. Engine & Emissions - **Engine Model**: Kubota **V2607-CR-E4** (4-cylinder, diesel) - **Rated Power (Net)**: **33.8 kW (45.4 hp)** @ 2,200 rpm - **Gross Power**: **35.5 kW (47.6 hp)** @ 2,200 rpm - **Displacement**: **2,615 cc** (159.6 cu.in) - **Emission Standard**: **Stage V / Tier 4F** - **Fuel Tank Capacity**: **68 L** (18.0 US gal) #### 3. Digging & Lifting Performance - **Max. Digging Depth**: **3,630 mm** (11 ft 11 in) - **Max. Horizontal Reach**: **6,100 mm** (20 ft 0 in) - **Max. Digging Height**: **5,580 mm** (18 ft 4 in) - **Max. Bucket Breakout Force**: **4,315 kgf** (9,513 lbf) - **Max. Arm Breakout Force**: **2,770 kgf** (6,107 lbf) #### 4. Hydraulic System - **Main Pumps**: 2 × variable displacement pumps (**56.1 L/min each**) - **Gear Pump**: 1 × gear pump (**37.0 L/min**) - **Auxiliary Hydraulic Flow (AUX1)**: **37 / 75 L/min** - **Hydraulic Oil Tank**: **45 L** (11.9 US gal) #### 5. Dimensions (mm) - **Transport Length**: **5,500** (18 ft 0 in) - **Transport Width**: **1,960** (6 ft 5 in) - **Transport Height**: **2,550** (8 ft 4 in) - **Min. Ground Clearance**: **310** (1 ft 0 in) - **Tail Swing Radius**: **1,045** (3 ft 5 in) #### 6. Travel & Swing Speeds - **Travel Speed (Rubber Tracks, Low/High)**: **2.8 / 4.9 km/h** (1.7 / 3.0 mph) - **Travel Speed (Steel Tracks, Low/High)**: **2.6 / 4.6 km/h** (1.6 / 2.9 mph) - **Swing Speed**: **9.3 rpm** - **Max. Climbing Angle**: **20° (36%)** #### 7. Standard Equipment - **Canopy / Cab**: ROPS/FOPS certified - **Undercarriage**: Rubber tracks (standard), steel tracks (optional) - **Blade**: Standard dozer blade (770 mm width) - **Swing Boom**: Left 70° / Right 55°