Rtg Mobile Container Gantry Crane

Key Features of RTG Mobile Container Gantry Cranes:

Mobility:

Equipped with rubber tires (typically 4 or 8) for easy movement.

Can be diesel-powered, electric (with cable reel or battery), or hybrid.

Lifting Capacity:

Typically handles 30 to 50 tons, suitable for 20ft, 40ft, 45ft, and even high-cube containers.

Span & Stacking Height:

Can span multiple container rows (usually 4 to 8 rows wide).

Stacking capability of up to 5-high (1-over-4) or more, depending on design.

Automation & Control:

Manual operation via cabin or remote control.

Some advanced models feature semi-automated or fully automated systems for optimized container handling.

Power Options:

Diesel-electric: Common for flexibility but has higher emissions.

Electric RTG (E-RTG): Uses a cable reel or battery for eco-friendly operation.

Hybrid: Combines diesel and electric power for efficiency.

Comparison with Other Cranes:

Core Components PLC, Engine, Bearing, Gearbox, Motor, Pressure vessel, Gear, Pump

Place of Origin Henan, China

Warranty 1 Year

Weight (KG) 30000 kg

Application Precast yard, construction site, warehouse, etc.

Product name 40 ton straddle carrier rubber tired single girder gantry cranes

Crane Type A Type, Single Girder, Double Girder Straddle Carrier

Lifting mechanism Customer Requirements

Control Method Cabin Control+Remote Control

Lifting Capacity 5~1200 Ton

Multiple Steering Modes Go straight, transverse traveling, carousel steering, etc.

Install On-site and online

Motor Famous brand

Work Duty A3~A5

An RTG (Rubber-Tired Gantry) Mobile Container Gantry Crane consists of several key components that work together to lift, move, and stack shipping containers efficiently in ports, terminals, and intermodal yards. Below is a breakdown of its major components:

1. Structural Components

A. Gantry Frame (Main Bridge)

The primary steel structure spanning the container stacks.

Supports the hoisting mechanism and trolley system.

Designed to withstand heavy loads and dynamic forces.

B. Legs & End Carriages

Vertical supports at both ends of the gantry frame.

Equipped with rubber tires (typically 4 or 8) for mobility.

May include steering mechanisms for directional control.

C. Boom (Optional)

Some RTGs have a cantilevered boom for extended reach.

Helps in handling containers in wider areas.

2. Lifting & Handling Components

A. Hoisting Mechanism

Electric or hydraulic motors power the lifting system.

Includes wire ropes, sheaves, and drums for vertical movement.

Lifting capacity typically ranges from 30 to 50 tons.

B. Spreader (Container Lifter)

Attaches to containers using twist locks.

Can handle 20ft, 40ft, 45ft, and high-cube containers.

Some models have auto-latching for faster operations.

C. Trolley System

Moves horizontally along the gantry beam.

Carries the hoist and spreader for precise positioning.

Can be manual, semi-automated, or fully automated.

3. Mobility & Drive System

A. Rubber Tires

Usually 8 or 16 tires (4 or 8 per side).

Made of heavy-duty, puncture-resistant rubber.

Allows movement without rails (unlike RMGs).

B. Drive Units (Wheel Motors)

Electric or hydraulic drives power the wheels.

Some RTGs use diesel-electric or hybrid systems.

May include regenerative braking for energy efficiency.

C. Steering System

Crab steering (all wheels turn in sync for diagonal movement).

90-degree steering for tight turns.

Can be manual, joystick-controlled, or automated.

4. Power System

A. Diesel Engine (Conventional RTG)

Powers electric generators for motors.

Common in older models (higher emissions).

B. Electric RTG (E-RTG)

Uses cable reel or battery for power.

More eco-friendly, lower operating costs.

C. Hybrid RTG

Combines diesel + battery/electric for efficiency.

Reduces fuel consumption and emissions.

5. Control & Automation Systems

A. Operator Cabin

Mounted on the gantry for visibility.

Equipped with joysticks, monitors, and safety controls.

B. Remote Control (Optional)

Allows operators to control the RTG from the ground.

Enhances safety in busy yards.

C. Automation Features (Advanced RTGs)

GPS/RTK positioning for precise container handling.

Anti-sway & collision avoidance systems.

Automated stacking programs for optimized yard operations.

6. Safety & Auxiliary Components

A. Braking System

Hydraulic disc brakes for stopping.

Emergency brakes for fail-safe operation.

B. Outriggers/Stabilizers

Extendable legs for stability during lifting.

Prevent tipping under heavy loads.

C. Lights & Sensors

LED lights for night operations.

Laser scanners & cameras for obstacle detection.

D. Wind Resistance Features

Anemometer to monitor wind speed.

Automatic shutdown in high winds.

7. Optional Add-Ons

Generator sets (for backup power).

Battery-powered RTGs (zero emissions).

AI-based optimization software for smart stacking.

Sketch

1. High Mobility & Flexibility

Rubber tires allow free movement (unlike Rail-Mounted Gantry cranes).

Can be relocated easily to different yard sections.

Suitable for multi-purpose terminals with changing layouts.

2. Space Efficiency & High Stacking

Can stack containers up to 5-high (1-over-4) or more.

Maximizes yard storage density (ideal for congested ports).

Handles 20ft, 40ft, 45ft, and high-cube containers.

3. Lower Infrastructure Cost

No need for rails or fixed tracks (unlike RMGs).

Requires only a paved yard surface (reduces setup costs).

4. Versatile Power Options

Diesel-electric (traditional, high power).

Electric (E-RTG) with cable reel or battery (eco-friendly).

Hybrid RTG (combines diesel + battery for fuel savings).

5. Operational Efficiency

Faster container handling than reach stackers or forklifts.

Can work in narrow lanes between container rows.

Automation-ready (remote control, GPS positioning, anti-sway systems).

6. Reduced Environmental Impact (E-RTGs & Hybrids)

Electric RTGs produce zero emissions (ideal for green ports).

Regenerative braking recovers energy during lowering.

1. Port Container Terminals

Stacking and reshuffling containers in storage yards.

Transferring containers between trucks, trains, and STS cranes.

2. Intermodal Rail Yards

Loading/unloading containers from trains to trucks.

Temporary stacking before onward transport.

3. Depot & Logistics Hubs

Empty container storage and repositioning.

Handling containers in private freight terminals.

4. Temporary & Mobile Operations

Used in emergency logistics (e.g., disaster relief).

Deployed in new port expansions before permanent infrastructure is built.

5. Automated & Smart Ports

Automated RTGs (A-RTGs) with AI-based stacking optimization.

Integrated with terminal operating systems (TOS) for real-time tracking.

1. Design stage: Determine the parameters of the crane, such as rated load, span and lifting height, according to the customer's needs and working environment. Carry out detailed structural design, including main beam, end beam, crane, lifting mechanism, etc., to ensure that the design meets safety standards and usage requirements. Select appropriate materials according to the design, usually high-strength steel to ensure the stability and durability of the structure.

2. Manufacturing stage: Prepare the required raw materials and parts according to the design drawings. Cut, bend and shape the steel to prepare structural components such as main beams and end beams. Weld the various components and assemble them into an overall structure. This step requires guaranteed welding quality to ensure strength and stability.

3. Machining: Machining key components such as motors, gears, bearings, etc. to ensure that their size and accuracy meet the requirements. Anti-corrosion treatment of components, such as painting and galvanizing, increases the durability and aesthetics of the equipment.

4. Electrical system installation: Install electrical components such as motors, controllers, switches, sensors and alarm systems. Connect and wire cables to ensure the normal operation of the electrical system.

5. Assembly phase: Assemble all components and systems as a whole, connect the lifting mechanism, trolley running mechanism and control system. Perform a comprehensive inspection of the assembled crane to ensure that all components and systems are working properly, and perform preliminary debugging.

6. Testing phase: Perform static load test on the crane to check the structural strength and stability. Perform dynamic test on the crane, including tests on lifting, moving, braking and other functions, to ensure that its performance meets the design requirements. Check the functions of safety devices, such as limit switches, overload protection, etc., to ensure the safety of the equipment during operation.

7. Quality control: Perform quality control on each link in the production process to ensure compliance with industry standards and customer requirements. Record various data and inspection results in the production process for subsequent traceability and analysis.

8. Delivery and installation: Pack and prepare the completed crane for transportation to ensure that it is not damaged during transportation. Deliver the crane to the customer's site for installation, and perform on-site debugging and acceptance. Provide operation training to customers to ensure that they are proficient in the use and maintenance of the crane.

Workshop view:

The company has installed an intelligent equipment management platform, and has installed 310 sets (sets) of handling and welding robots. After the completion of the plan, there will be more than 500 sets (sets), and the equipment networking rate will reach 95%. 32 welding lines have been put into use, 50 are planned to be installed, and the automation rate of the entire product line has reached 85%.