KATO（カトウ・加藤製作所） NK 500 E-3

### KATO NK500E-Ⅲ – Technical Specifications **50-ton Class Hydraulic Truck Crane Standard Configuration** #### 1. Basic Parameters - **Brand**: KATO - **Model**: NK500E-Ⅲ - **Type**: Hydraulic truck crane - **Max Rated Lifting Capacity**: **50.5 t @ 3 m radius** - **Operating Weight (GVW)**: **39,200 kg** - **Counterweight**: **11,000 kg** #### 2. Boom & Jib - **Main Boom**: 5-section telescopic, **10.8 m – 40.0 m** - **Boom Luffing Angle**: **-2° to 81°** - **Max Lifting Height (Main Boom + Jib)**: **54.7 m** (with 15 m jib, 5° offset) - **Jib Length**: **9.2 m / 15.0 m** (optional) #### 3. Engine (Chassis) - **Model**: Mitsubishi **8DC8A / 8DC8-2A** - **Type**: V8, 90°, water-cooled, turbocharged diesel - **Net Power**: **213 kW / 290 PS @ 2,300 rpm** - **Max Torque**: **970 N·m / 99 kg·m @ 1,400 rpm** - **Displacement**: **14.886 L** - **Fuel Tank Capacity**: **300 L** #### 4. Performance - **Max Travel Speed**: **80 km/h** - **Swing Speed**: **2.4 rpm** (360° continuous) - **Boom Luffing Time**: **48 s** (0°–81°) - **Winch Line Speed**: **119 m/min** (2nd layer, 1 part line) - **Hook Speed**: **111 m/min** (12 part line) #### 5. Dimensions (mm) - **Transport Length**: **12,950** - **Transport Width**: **3,190** - **Transport Height**: **3,750** - **Outrigger Spread (Fully Extended)**: **7,200 mm** (width) - **Wheelbase**: **5,800 mm** - **Tire Size**: **12.00-20-18PR** #### 6. Chassis & Drivetrain - **Chassis Model**: Mitsubishi **K503LK3** (8×4) - **Transmission**: Manual, **10-forward / 2-reverse** synchromesh - **Suspension**: Front: semi-elliptic leaf springs; Rear: equalizer beams #### 7. Hydraulic System - **Main Pump**: Variable displacement piston pump - **System Pressure**: **31.4 MPa** - **Hydraulic Tank Capacity**: **650 L** #### 8. Manufacturing Data - **Production Years**: **1989 – 1996** - **Emission Standard**: Tier 1 / Stage Ⅰ