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Kalmar Zero-Emission RTG

Kalmar Zero-Emission Rubber Tyred Gantry Crane.

The all-electric design of the Kalmar Zero Emission RTG removes the need to use fossil fuels, which greatly reduces their emissions, making them our most eco-efficient rubber tyred gantry crane available.

Eco-efficient RTGs Webinar

Technical information

Technical info E-One2 RTG Specifications
Hoisting speed
58 m/min., 5 s
Trolley speed
70 m/min., 4 s
Gantry speed
130 m/min., 8 s
Safe working load SWL
41 t
Technical info

An electrically powered RTG with no emissions at source.


The Kalmar Zero Emission RTG can be powered by either:

  • A busbar system situated alongside the stack
  • A cable reel system that is mounted onto the RTG crane’s frame.

Both systems allow a seamless flow of power and data to be transferred from your RTG to other systems, if required.

Regenerative power is used to keep the optional auxiliary Li-ion batteries charged for use when needed for cross-stack travel and maintenance operations. The Li-ion batteries come with a 5-year guarantee as standard for complete peace of mind.

A Kalmar Zero-Emission Rubber Tyred Gantry Crane enables you to:


  • cut your carbon emissions to zero
  • reduce operating and maintenance costs in your terminal
  • improve occupational health and safety levels for your RTG crane operators
  • improve availability so your can maintain the highest levels of productivity when moving containers
  • extend your crane's lifespan as your new RTG crane will have a longer operational life and cost you less in the long run.

Why you should consider Kalmar Zero-Emission RTG cranes?

Kalmar Zero-Emission Rubber Tyred Gantry Cranes are ideal for terminal or intermodal operations and for businesses that want to significantly reduce their carbon footprint.


  • Fully electric drive 
  • Zero emissions at source
  • Available with busbar or cable reel 
  • Optional onboard battery system for stack changing
  • Ability to support variable input voltage levels
  • Optimised portal structure
  • From 4+1 to 10+1 wide
  • 1 over 3 to 1 over 6 high
  • New optional cabin with improved visibility and ergonomics
  • New optimised 16wheel bogie option
  • Shorter wheelbase with less than 12m total crane width
  • New Crane Management System with intuitive interface
  • New PLC and PLC control logic
  • New optional anti-sway system
  • Cloud connectivity as standard
  • Improved access for servability.

Saigon Newport Company, Vietnam

Saigon Newport Company, Vietnam’s largest container terminal operator, relies on Kalmar Zero Emission rubber-tired gantry cranes (RTGs) to provide the capacity and environmental performance it needs.

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OPA, Port of Oslo

The world’s most advanced RTG crane automation takes efficiency to a new level at Norway’s largest freight port

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