ZOOMLION

Stiff Boom Cranes ZLT3500V5

Stiff boom cranes are truck-mounted loader cranes that lift, move, and load or unload cargo using a rigid, straight telescopic boom. The boom sections slide in and out to adjust the reach while remaining aligned, rather than fold at articulated joints as they do on knuckle boom cranes. ZOOMLION stiff boom cranes handle loads such as construction materials and equipment, both during loading and unloading and when placing them at the worksite. Since they are mounted on cargo trucks, the same vehicle can transport the cargo and unload it at the site.

  • Max. lifting moment: 350 kN·m
  • Max. lifting height: 21.5 m
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Features

Crane

  • ZOOMLION stiff boom cranes have a five-section boom made from high-strength steel. Its large hexagonal cross-section provides strength without unnecessary structural weight, while two telescopic cylinders extend the boom to a maximum length of 20 m.
  • The outriggers extend to an 8 m span to provide a broad base of support when lifting loads.
  • Overall lifting performance at medium to long boom lengths is more than 10% higher than that of competing models.
  • Two hydraulic oil pumps increase hoisting speed and supply oil for simultaneous movements, so the cranes can perform more than one movement at a time.
  • During extended operation, the standard hydraulic oil cooler helps keep the oil temperature under control. The cranes also include an overwinding warning and a control-panel start/stop function for easier operation.

Truck Chassis and Cab

  • The truck measures 12 m long, 2.55 m wide, and 3.9 m high, so site entrances and access routes need enough clearance for the entire vehicle.
  • For road travel, the truck has a 350 hp Weichai engine paired with a Fast Gear 12-speed transmission. The engine complies with China VI emissions standards.
  • The Delong New M3000 cab has hydraulic suspension and an air-suspension driver’s seat to reduce the effect of road bumps during travel.
  • Inside the cab, electric air conditioning and power windows provide additional comfort. The cab also has a manual tilt mechanism and a Celestial Rover Smart Elegance Edition BD vehicle terminal.
  • The truck has 12.00R20 steel-cord tires and a four-channel anti-lock braking system (ABS) manufactured in China, which helps keep the wheels from locking when the driver brakes.
  • The chassis has a front axle rated for 7.5 tons and a rear axle rated for 16 tons, along with a three-layer frame beam that measures 308 mm and runs the full length of the chassis.
  • Distances between successive axles are 2100 mm, 4575 mm, and 1400 mm, and the complete vehicle has a curb weight of 20860 kg.
Technical Specifications
Item Parameters Unit Remarks
Max. lifting moment 350 kN·m
Max. lifting height 21.5 m
Max. working radius 19.6 m
Rated lifting capacity 15000/2.2 kg/m
6900/5.0
3600/8.5
2100/12.0
1410/16.0
1060/19.0
Boom length 5.8-20 m
Boom extension time 53 S System Flow
Luffing angle 0-75 °
Min. boom raising time 34 S System Flow
Wire rope for lifting 13/115
58
mm/m
m/min
System Flow
Lifting speed (single rope) 360°Continuous °
Slewing angle 1.5 r/min System Flow
Slewing speed 18 S System Flow
Rated flow rate of hydraulic system 80/60 L/min
Rated pressure of hydraulic system 28 MPa
Capacity of hydraulic oil tank 270 L
Outriger lateral span 2340-8000 mm
Dimensions (L × W × H) 6215 × 2540 × 2580 mm
Crane's deadweight 5750 kg Crane Unit Only
Lifting Height Curve
Overall Dimensions
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