Product

SINOTRUK HOWO 6×4 Tractor Head with Knuckle Boom Crane

SINOTRUK HOWO 6×4 Tractor Head with Knuckle Boom Crane

Item Detailed Specifications
Basic Vehicle Information
Model HOWO 6×4 Tractor Chassis (Knuckle Boom Crane Optional)
Emission Standard Euro III (China III)
Cab HW76 Single-Sleeper Cab, Four-Point Floating Suspension, Manual Hydraulic Tilting, 2 Seats
Drive Type 6×4 (Dual Rear Drive)
Wheelbase 3825+1350 mm
Overall Dimensions 7450 × 2496 × 3450 mm
Chassis Curb Weight 8200 kg (Bare Chassis, Excluding Crane and Fifth Wheel)
Gross Combination Weight 40000 kg
Maximum Speed 85 km/h
Engine
Model D12.48-30 (Original SINOTRUK)
Horsepower / Power 480 HP / 353 kW
Displacement 11.96 L, Inline 6-Cylinder Diesel
Maximum Torque 1900 N·m @ 1200-1500 rpm
Fuel Injection System Mechanical Pump + EGR, Without SCR Urea Aftertreatment System (Euro III)
PTO Interface Transmission-Side PTO (Standard, Used to Drive the Hydraulic Pump of a 20-Ton Knuckle Boom Crane)
Transmission & Drivetrain
Transmission Model HW20716A SINOTRUK 16-Speed Manual Transmission, With High/Low Range
Forward / Reverse Gears 16 Forward, 2 Reverse
Clutch 430 mm Diaphragm Spring Clutch
Front Axle 9-Ton Steering Axle
Rear Axle 16-Ton Tandem Rear Axles With Double Reduction
Rear Axle Ratio 4.42 (Standard for Heavy-Duty Crane Application; Optional 4.8 / 5.73)
Suspension Front 9-Leaf Spring, Rear 12-Leaf Main and Auxiliary Spring (Reinforced Version, Specially Designed for Knuckle Boom Crane Installation)
Braking System
Brake Type Air Brake, Drum Brake
ABS Domestic ABS (Standard for Export)
Parking Brake Spring Brake
Fuel Tank & Tires
Fuel Tank 400 L Aluminium Alloy Fuel Tank
Tire Size 12.00R20-18PR Steel Radial Tires, 10 Tires (Including Spare Tire)
Wheel Rim 8.5-20 Steel Rim
Fifth Wheel Standard 90# Fifth Wheel (Can Be Removed to Provide Installation Space for the Knuckle Boom Crane)
Electrical System & Interior
Voltage 24V, 2 × 150Ah Batteries
Air Conditioning Original Manual Air Conditioning
Seat Mechanical Suspension Driver Seat
Rearview Mirrors Split-Type Outward-Extending Rearview Mirrors
Optional Configuration (Important for Knuckle Boom Crane Installation)
✅ Required Transmission-Side PTO (For Driving the Crane Hydraulic Pump)
Optional RHD, Aluminium Alloy Protection, Fuel-Water Heater, Remote Engine Oil Filter
Not Selected Fifth Wheel (Remove the Fifth Wheel When Installing the Knuckle Boom Crane)
Item Specification
Model HCZ420 (400 kN·m, 20-Ton Knuckle Boom Crane)
Maximum Lifting Capacity 20 t @ 2 m (Full 20-ton capacity only at a close working radius of 2 m)
Maximum Lifting Moment 400 kN·m (40 t·m)
Number of Telescopic Boom Sections Standard 6-section telescopic boom; optional 5-section / 7-section boom
Maximum Working Radius 6-section boom: 16.8 m; 5-section boom: 13.3 m; 7-section boom: 18.2 m
Maximum Lifting Height 6-section boom: 18.5 m (Measured from the crane support surface)
Boom Angle -15° to +80° (Supports negative-angle downward lifting)
Slewing Mechanism 360° continuous rotation; hydraulic slewing motor + planetary gear reducer (not an electric motor); high-torque piston-type slewing motor; slewing speed 1.2–1.5 r/min
Crane Weight Standard 6-section boom: 5500 kg (Crane only, excluding chassis)
System Pressure 31 MPa (310 bar)
System Flow Rate 63 L/min (Hydraulic pump driven by chassis PTO)
Hydraulic Pump Standard gear pump; optional imported piston pump
Valve Block Domestic proportional valve; optional imported HYDAC / HAWE proportional valve
Outrigger Type H-type four outriggers, two-stage telescopic; fully extended span 7.48 m
Installation Width 1480 mm
Hydraulic Oil Tank 200 L
Winch Hydraulic winch, 12-ton winch; φ14 mm wire rope; 20-ton hook
Operation Method Standard manual control levers on both sides; optional wireless remote control
Safety Configuration Load moment limiter, overload protection, height limit, outrigger position detection
Boom Material Slewing platform: BS700 high-strength steel; telescopic boom: BS960 high-strength steel
Optional Dual Power System (External Electric Motor) 15 kW 380 V three-phase asynchronous motor, connected to external industrial power; allows operation without running the engine when parked (optional, not standard)

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