Gantry crane
Rubber-Tyred Gantry Crane (RTG)
Product Overview
The Rubber-Tyred Gantry Crane is a mobile, self-propelled gantry crane mounted on rubber tyres instead of rail wheels, giving it the ability to move freely across a yard and change lanes without a fixed track. RTGs are widely used for container stacking and general yard handling where flexibility of movement matters as much as lifting capacity.
Structure Composition
- Main Girder: Box-type double girder structure, engineered for the additional dynamic loads of tyre-mounted travel.
- Legs: A-frame legs mounted on bogie assemblies with multiple rubber tyres per corner for load distribution and steering.
- Steering System: Independently steerable wheel bogies allow the crane to travel straight, crab sideways, or turn within its own footprint to change lanes.
- Power Unit: Diesel generator set (diesel-electric) or, on newer models, hybrid or fully electric power supply via cable reel or busbar.
- Trolley/Spreader: Container spreader, hook, or grab, depending on the cargo handled.
Application
- Container terminal yards (stacking and lane-to-lane transfer)
- Bulk cargo yards requiring frequent repositioning
- Intermodal freight yards and logistics parks
- Any outdoor yard operation where a fixed rail runway is impractical due to yard layout changes
Key Features
- No fixed rail required — travels on a paved or compacted yard surface
- Independent steering allows lane-changing without repositioning the whole yard layout
- Higher lift height typically engineered to stack containers multiple tiers high
- Diesel, hybrid, or fully electric power options available to match emissions and operating-cost requirements
Technical Parameters (Reference Range)
Lifting Capacity: 20–65 t (container/general cargo)
Span: 16–24 m (typically 6+1 or 7+1 container rows)
Stacking Height: 1-over-3 to 1-over-6 tiers
Travel Speed: Up to 130 m/min (unloaded)
Power: Diesel-electric, hybrid, or full electric
Safety Devices
Anti-sway control, overload protection, container twist-lock verification (for spreader models), collision-avoidance sensors, wheel/tyre monitoring, emergency stop, and operator cab with elevated visibility.
Customization Options
Power source (diesel, hybrid, or electric), spreader type (fixed, telescopic, twin-lift), automation level (manual, remote-operated, or semi-automated), and stacking configuration to match yard layout.
