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Four Link Portal Crane

Four Link Portal Crane

The Hybrid Diesel-Electric Tyre Crane is a dual-power lifting system that combines diesel engines with electric motors, integrating the high power output of conventional fuel-powered equipment with the energy-efficient and environmentally friendly features of electric drive. Utilizing hybrid technology, it prioritizes electric operation during light loads or low-speed operations to reduce fuel consumption and emissions.

Product Description

 

 

The Hybrid Diesel-Electric Tyre Crane is a dual-power lifting system that combines diesel engines with electric motors, integrating the high power output of conventional fuel-powered equipment with the energy-efficient and environmentally friendly features of electric drive. Utilizing hybrid technology, it prioritizes electric operation during light loads or low-speed operations to reduce fuel consumption and emissions. When handling heavy loads or requiring high power output, it automatically switches to diesel engine mode to ensure operational efficiency.

 

1. Main Features of the Hybrid Diesel-Electric Tyre Crane

 

 

  • Energy saving and environmental protection: Compared with pure fuel-powered cranes, fuel consumption is reduced by 20%–40%, lowering CO₂ and particulate matter emissions.
  • Low noise: The operating noise is low (approximately 50–60 dB) in electric mode, making it suitable for sensitive areas such as cities and hospitals.
  • Energy recovery: When lowering loads or braking, the motor generates electricity in reverse and stores the energy in the battery.
  • Flexible operation: The tyre chassis offers strong mobility, making it suitable for site transfers, port loading and unloading, and other scenarios.

 

2. Power System Composition

 

 

Diesel engine: Provides the main power, suitable for heavy loads and long-duration operation.

Motor + battery: Handles light loads and low-speed operation, supporting pure electric operation for short durations (e.g., 1–4 hours).

Energy management system: Intelligently switches between diesel and electric modes to optimize energy utilization.

Hydraulic system (optional): Some models use an electric-driven hydraulic pump to further reduce energy consumption.

 

3. Core Advantages

 

 

Environmental protection and energy saving:
Compared with traditional cranes, fuel consumption is reduced by 20%–40%, and CO₂ and particulate matter emissions are lowered.
Pure electric mode achieves zero emissions, making it suitable for areas with strict environmental requirements (e.g., indoor or urban environments).

Low noise: Electric mode significantly reduces noise (approximately 50–60 dB), making it suitable for hospitals, schools, and other noise-sensitive environments.

Economy: Long-term use saves fuel and maintenance costs, with a return on investment cycle of about 3–5 years under certain working conditions.

 

4. Typical Configuration

 

 

Power unit: Diesel engine (e.g., 50–300 kW) + motor (30–150 kW) + energy storage system (lithium battery/supercapacitor).

Chassis structure: Full hydraulic or electromechanical hybrid drive tyre chassis, with multi-axle steering (e.g., 4×2, 6×4), offering strong mobility.

Lifting capacity: Covers small to medium tonnage (25–100 tons), with a lifting height of up to 30–80 meters.

 

5. Application Scenarios

 

 

  • Port container loading and unloading: Energy recovery is highly effective under frequent start-stop conditions.
  • Urban construction: Reduces noise and pollution interference in surrounding environments.
  • Emergency rescue: Rapid transfer capability adapts to remote areas without power supply.
     

6. Design Codes

 

 

The deck crane is designed and manufactured according to GB3811-2008 (Crane Design Code) and GB6067-85 (Safety Code for Lifting Machinery).

 

Main specifications and technical parameters

 

 

Parameter

Value

Lift capacity

50t

running speed

50m/min

spin velocity

2.5r/min(maximum)1r/min(Leg, rated)

Maximum speed

10km/h

Variation time (30~75 degrees, arm length 12m)

55s

Arm mount assembly

12,15,18,21,24,27,30m

footstep

2.4m

wheel base

3.175m (front of the bridge) 1.45 (middle and rear bridge)

Expand the side spacing of the arm

6.4m

Extend the longitudinal spacing of the arm

7m

Reactive potency

550KN

Tire response

230KN

Radius of turn

4.2m

Minimum turning radius

9.6m

Maximum climbing gradient

12.20%

Overall quality

~54,000 kg (12 m arm length)

Shape and size of crane arm (L × W × H)

8.064m*3.535*4.544m

Engine

WD615-68 175KW/1500rpm

Generator

TZH-150 150KW/1500rpm

Jacking motor

ZZGJZF280-53 55KW 750rpm

Variable amplitude motor

ZZGJZF280-43 37KW 750rpm

Drive motor

ZZGJ225-43 30KW 1000rpm

Electric rotating machinery

ZZGJ225-42 22KW 1000rpm

Note: It can be customized according to customer needs

 

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