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igus® Vietnam Company Limited

Unit 4, 7th Floor, Standard Factory B, Tan Thuan Export Processing Zone, Tan Thuan Street

District 7, HCM City, Vietnam

+84 28 3636 4189

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The alternative to cable trolleys: energy chain systems

With cable trolleys, the cables hang unprotected on cranes in wind and weather. The cables themselves and the cable trolleys are exposed to varying temperatures as well as sand and salt (at outdoor facilities). The wind often lets the cables get tangled, which quickly results in downtime. igus offers a reliable and modular alternative to cable trolley systems on cranes, which helps you save cable length and avoid downtime. Energy, data, fibre optics, oil and air are safely managed in one system. More than 1,300 STS and over 6,500 RTG/RMG ASC cranes have been fitted with energy chains.

Energy chain system in cranes

White paper energy chain system vs. cable trolley

White paper: efficient energy supply systems for cranes in steel plants

Plastic energy chains compared to cable trolleys

In this white paper, you can find the following topics:

Advantages and disadvantages of energy chain systems and cable trolleys for steelworks cranes
The most innovative solution for cranes for steel plants
Future technologies: roller energy chains

Download white paper now

What is the difference between energy chain systems and cable trolleys?

We have compared energy chain systems and cable trolleys at a 100m plant:

Energy chain systems

Energy chain systems

In the solution with energy chains, the cables are fed into the e-chain in the middle of the travel. The e-chain is pushed or pulled halfway.

Cable lengths/space requirements

About 50% less cable (52m cable length with centre-fixed installations and approx. 100m travel)
Approx. 800mm system height
About 10% less structural steel (for the cable festoon)

Influencing the crane girder construction
No cable station required

Dynamic parameters
Rolling energy chains can be operated at a speed of over 600m/min and with an acceleration of over 2m/sec² .

Secure cable guidance
Cables are safely guided in the energy chain and cannot get caught anywhere.

cable trolleys

Cable trolley systems

In a cable trolley system, the cables are attached at the end of the travel and the cable loops are pulled all the way by the trolley.

Cable lengths/space requirements

Approx. 115m cable (115% travel length) for 100m travel
About 3,500mm length for the "cable loops", system height approx. 5,000mm

Influence on the crane girder construction
Cable festoon is required

Dynamic parameters
Cable trolley systems reach their limits at speeds of 240m/min. and accelerations of more than 0.8m/sec.²

Secure cable guidance
Cables hang uncontrollably and may get caught in the crane structure (e.g. by wind).

For maximum service life with optimised design - P4HD.56R heavy-duty rol e-chain

The new heavy-duty rol e-chain meets all the relevant requirements for container cranes of the next and future generations.Longer and longer travels, greater dynamics, short stress cycles, zero failures: in brief, this is what is demanded by the manufacturers of ship-to-shore container cranes for energy chains on the crane bridges. The new P4HD.56R fulfils these requirements - with maximum economy.

Ask for a free sample now

Energy chain systems recommended by us

E4.1 system

E4.1 system

High loads, long unsupported lengths and also for sliding applications.

About the E4.1 system

E2/000 system

E2/000 system

The all-rounder for unsupported applications. Cost-effective.

To the E2/000 system

System 4040R/5050R

System 4040R/5050R

Travels up to 800m possible. Speeds up to 6m/s possible.

To the 4040R/5050R system

System 4040HD/5050HD

System 4040HD/5050HD

Very high stability. High tensile stability (20% higher tensile strength than in 4040 series). Standard for long travels.

To the 4040HD/5050HD system

P4.1 system

P4.1 system

Travels of more than 1,000m. Speeds of more than 5m/s. Low vibration and noise thanks to split profile roller

To the system P4.1

Predictive maintenance

Predictive maintenance

Defects are detected before they occur, unscheduled downtime and failures are avoided.

To the systems for predictive maintenance

chainflex cables

chainflex cables

Designed for use in energy chains. Numerous types of cable with different approvals and certificates of conformity.

To the chainflex cables

readychain harnessing

readychain harnessing

Ready-to-install e-chain systems and pre-assembled cables for your machines. No minimum order quantity, delivery in 1 to 10 days!

Selected application examples

Bulk handling crane

Bulk handling crane with durable energy chain

On 441 metres travel with a max. acceleration of 01m/sec², a motor cable drum and thus slip rings were used for the main power and data supply. Due to the high maintenance requirements, the operator opted for a new roller energy chain and fail-safe chainflex cables. This arrangement is not only simpler, safer and more secure than the motorised cable drum previously used, it also facilitates the supply of data via fibre optic cables.

Go to complete user report

STS crane

Customised solution for STS cranes

This STS application is exposed to strong wind and consequently requires an energy supply that reliably withstands such conditions. For the customer, it was important that the cables were safely and securely guided in a controlled manner at all times, despite the double boom pivot point. igus designed and tested a customised solution that was subsequently installed together with the crane manufacturer: now, a P4 energy supply and a range of chainflex cables from igus are in use; these guide cables at a speed of up to 240m/min. over a travel of 117 metres.

RTG crane

More than 10 years of trouble-free use

With this RTG crane, the e-chain system from igus has been working trouble-free for more than 10 years, without even one component of the energy chain having to be replaced. With a travel of 19.2m and a speed of 70m/min and an acceleration of 0.7m/sec², the system keeps its promises: reliable cable guidance. The energy chain guides a range of chainflex cables which were developed specifically for moving applications.

You might also be interested in

Energy chain systems in crane facilities

Energy chain systems in crane facilities

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Energy chain systems instead of motor cable drums

Energy chain systems instead of motor cable drums

Energy chain systems instead of motor cable drums

Energy chain systems instead of busbars

Energy chain systems instead of busbars

Energy chain systems instead of busbar system

Tư vấn

Tôi sẽ rất vui được trả lời trực tiếp các câu hỏi của bạn

Theo Diehl

+49 2203 9649 340

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