Reliable energy chains for RTG cranes

Rubber-tyred gantry cranes (RTG) are characterised by large spans and lifting heights in order to be able to stack many containers when handling goods in a tight space. Our heavy duty roller energy chains in sliding or rolling versions provide a remedy for this, as they reduce the required drive force even for long travels and contribute to the reliability of the entire crane. To date, well over 7,000 RTG cranes have been equipped with our energy chain systems worldwide. Usually installed on the outside along the footpath, they are easily accessible for maintenance purposes and do not block any footpaths. Together with a large selection of suitable supplementary products such as guide troughs, floating moving ends, clamps for strain relief or TPE cables for the highest demands, we offer you the optimal complete package for your crane solution.

Heavy-duty roller energy chains

• Stainless steel energy chains with rollers
• Long travels of up to 800m
• Speeds of up to 5m/s
• 10x longer service life whilst using less drive force

Gliding energy chains

• Complete sets for travels of 8 - 24 metres
• Easy movement at speeds of 10m/s and fill weights of 50kg/m
• With guide troughs and housings for smooth and low-friction guidance

Guide troughs

• Available in stainless steel or aluminium for seawater resistance to EN6060 and weight reduction
• Available as cost-effective and corrosion-free plastic trough

chainflex cables

• chainflex cables with 36-month guarantee
• E.g., new 18% thinner and therefore lighter unshielded and shielded control cables CF9.UL and CF10.UL thanks to the new UL style.

E4.1R energy chain

• Can be rolled or glided
• For use on cranes with less high fill weights
• Reduces noise and vibration

Energy chain systems instead of festooning
Provide guidance for cables and energy chains while keeping them protected and safe in wind and fluctuating temperatures. This minimises downtime.

Energy chain systems instead of motor cable drums
No slip ring on long travels. Guide all media safely in one system. Travels of up to 1,000 metres.

Energy chain systems instead of busbar systems
Deliver data, energy, fluids and air safely in a single energy chain system. For narrow compact spaces and fast lane movement. 

Trouble-free for over 10 years

In this RTG crane, the installed energy chain travels over 19.2 metres of travel at a speed of 70m/min and an acceleration of 0.7m/sec². The system has been running without incident for over 10 years.

Exceptionally compact energy supply

A very compact energy chain and the chainflex cables guided in it travel 34.2 metres at a speed of 120m/min and an acceleration of 0.7m/s².

... and other success stories

In other application examples, discover how our energy chains and chainflex cables are used in the crane industry for different requirements.

A look at the chainflex and e-chain test laboratory Take a look at our chainflex and e-chain test laboratory, where 10 billion cycles are tested annually.

Long travels in outdoor tests Up to 400m of travel can be achieved on our 200m long test track for energy chains.