三一重工 STC 750

### SANY STC750 Truck Crane Specifications #### 1. Basic Capacity - **Max. Rated Lifting Capacity**: **75 t @ 3 m radius** - **Min. Working Radius**: 3 m - **Max. Lifting Moment (Basic Boom)**: 2,560.2 kN·m - **Max. Lifting Moment (Full Boom)**: 1,254.4 kN·m #### 2. Boom System - **Boom Type**: 5-section, synchronous telescopic (U-shaped high-strength steel) - **Basic Boom Length**: 11.8 m - **Max. Main Boom Length**: 45 m - **Jib Length (Optional)**: 16 m - **Jib Mounting Angles**: 0°, 15°, 30° - **Max. Lifting Height (Basic Boom)**: 12.5 m - **Max. Lifting Height (Full Boom)**: 45.3 m - **Max. Lifting Height (Full Boom + Jib)**: 61 m #### 3. Dimensions & Weight - **Overall Length**: 14,100 mm - **Overall Width**: 2,750 mm - **Overall Height**: 3,850 mm - **Operating Weight**: 46,000 kg - **Outrigger Span (Transverse × Longitudinal)**: 7.6 m × 6.1 m - **Tail Swing Radius**: 4.116 m #### 4. Chassis & Engine - **Engine Model**: Cummins (Euro III) - **Rated Power**: 275 kW @ 2,100 rpm - **Max. Torque**: 1,550 N·m @ 1,200 rpm - **Max. Travel Speed**: 80 km/h - **Min. Turning Radius**: 12 m - **Drive Axles**: 2 (4-axle chassis, 2× drive) #### 5. Hydraulic & Winch - **Main/Aux. Winch Line Speed**: Up to 130 m/min - **Slewing Speed**: 0–2 rpm (360° continuous) - **Hydraulic System**: Load-sensing, constant-power control #### 6. Safety & Control - **Control System**: CAN-bus, SYMC controller - **Load Moment Indicator (LMI)**: Accuracy ≤5% - **Safety Devices**: Over-wind limiters, height limiters, balance valves