코벨코 7080

### KOBELCO 7080 – 80-ton Crawler Crane (English Specifications) #### 1. Lifting Performance - **Max. Lifting Capacity**: **80 t × 4.0 m** - **Max. Lifting Moment**: ~668 t·m - **Main Boom Length**: **12.19 m – 57.91 m** - **Fixed Jib Length**: 13 m – 31 m - **Luffing Jib Length**: 22 m – 52 m - **Max. Boom + Jib Combination**: **79.25 m** - **Max. Lifting Height**: ~82 m (with jib) #### 2. Engine - **Model**: **Mitsubishi 6D22CT** - **Type**: Water-cooled, 6-cylinder inline diesel, turbocharged, direct injection - **Rated Power**: **180 kW (245 PS) @ 2,000 rpm** - **Max. Torque**: **1,030 N·m (105 kg-m) @ 1,200 rpm** - **Displacement**: **11.945 L** - **Fuel Tank Capacity**: ~600 L #### 3. Winch & Speed - **Main Hoist Line Speed**: **90 / 60 / 45 / 30 m/min** - **Aux. Hoist Line Speed**: **90 / 60 / 45 / 30 m/min** - **Boom Hoist Speed**: **50 m/min** - **Swing Speed**: **High 3.3 rpm / Low 1.6 rpm** - **Travel Speed**: **High 4.0 km/h / Low 0.9 km/h** - **Gradeability**: **30% (≈16.7°)** #### 4. Undercarriage & Dimensions - **Track Length**: 6.22 m - **Track Width (Operating)**: 4.90 m - **Track Width (Transport)**: 3.50 m - **Counterweight**: **23.5 t (10.0 + 7.0 + 6.5 t)** - **Working Weight (Approx.)**: **77.9 t** - **Tail Swing Radius**: 4.5 m #### 5. General - **Noise Level**: 70 dB(A) @ 7 m / 64 dB(A) @ 15 m - **Wire Rope Diameter**: 26 mm (main hoist) - **Brake System**: Hydraulic + mechanical brakes - **Cab**: Tempered glass, noise-insulated, adjustable seat