Wat is een rondloper?

Een rondgaande kabelrups die een draaibeweging volgt in plaats van een rechte rijweg. Rondlopers worden gebruikt waar vaak een rotatie van meer dan 360 graden nodig is.

Welke kabelrups gebruik je voor een draaibrug?

Een rondlopende kabelrups die de draaibeweging volgt. Bij de draaibruggen in Zeeland gebruikten we S1250 rondlopers uit de stalen S/SX-serie, in een eigen behuizing met loop- en geleidewielen.

Kan een kabelrups ook in drie richtingen bewegen?

Een kabelrups buigt in één vlak. Voor bewegingen in drie dimensies, zoals langs een robotarm, kies je een beschermslang of een dresspack.

Draaien de kabels mee in een rondloper?

Nee, ze buigen in het vlak van de rups en draaien niet om hun eigen as. Zo blijft torsie uit de kabels.

Kunnen jullie een rondloper op maat ontwerpen?

Ja. Voor Sas van Gent en Sluiskil ontwierp onze engineering een eigen behuizing, en we deden assemblage en montage op locatie. Stuur je tekening en draaihoek mee met je aanvraag.

Rotary cable carrier

Rotating in one plane,or moving in three.

A rotary cable carrier follows a rotating movement, such as on a swing bridge or the axis of a telescope. If the cable moves in three directions at once, a protective hose fits rather than a cable carrier. Here you read when to choose which.

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cables and hoses in a rotary carrier under a swing bridge

Explanation

What is a rotary cable carrier?

Movement: Rotation in one plane
Rotation: Often more than 360°
Used: S1250 from the S/SX series
Guidance: Housing with running and guide wheels

An ordinary cable carrier moves back and forth along a straight line. A rotary cable carrier moves with a rotating structure. The bend of the carrier then travels around the pivot point instead of along a travel path.

Rotary carriers are intended for rotating applications that often need a rotation of more than 360 degrees. The power and signalling cables move along without twisting around their own axis: they bend in the plane of the carrier, just as in a straight cable carrier.

For the swing bridges of Sas van Gent and Sluiskil we used Kabelschlepp S1250 rotary carriers from the steel S/SX series. In the cramped pivot chamber the carrier was placed in a housing of our own design with running and guide wheels, so it runs smoothly through the bend without touching the walls.

When to use which

Rotary carrier or protective hose?

Static is a cable tray, linear is a cable carrier, three-dimensional is a protective hose. A rotating movement in one plane is the exception: that is where a rotary cable carrier runs.

Rotary cable carrierProtective hose or dress pack

Movement: Rotary cable carrierRotating around one axis, in one plane; Protective hose or dress packTwisting and bending at the same time, in all directions
Where: Rotary cable carrierSwing bridges and rotating axes; Protective hose or dress packRobot arms
Cable guidance: Rotary cable carrierCable carrier in a guide or housing; Protective hose or dress packCorrugated hose with holders, ball joints and retraction system
Cables: Rotary cable carrierFlexible cables for the cable carrier; they bend but do not twist; Protective hose or dress packTorsion-resistant cables, made to length
From practice: Rotary cable carrierSwing bridges Sas van Gent and Sluiskil, telescope antennas; Protective hose or dress packRetrofit at Mujin Europe, protective hoses at CREDUN Automation

Choose

What to look out for with a rotary carrier

01Rotation angle and direction
How many degrees does the structure rotate, and in one or two directions? That determines the length of the carrier and where the fixed point goes.
02Installation space
Space around a pivot axis is often tight. Measure the pivot chamber or housing before choosing a series.
03Guidance in the bend
The carrier must run supported and guided. At Sas van Gent, running and guide wheels in a dedicated housing did that.
04Environment
Outdoors and above water you choose a robust design. For the swing bridges that became a steel carrier.
05Cables and radius
Use flexible cables for the cable carrier and keep to the radius: at least 7.5 × the diameter of the thickest cable.
06Maintenance
Bridges and locks do not move often, but they must always work. Agree on a fixed maintenance plan.

Movement in 3D

Moving in three directions: the protective hose

A cable carrier bends in one plane. If the cable twists and bends at the same time, as on a robot arm, a Reiku protective hose or dress pack takes over.

01Follows every direction: A protective hose follows movement in all directions, including rotation. That is why it runs along robot arms.
02Absorbs the rotation: Ball joints and swivel flanges with 360° rotation absorb the rotation, so the cables do not twist.
03Keeps the length right: A retraction system pulls the package back so it does not whip or sag.
04Wear parts replaceable separately: The most heavily loaded spots get wear parts that you replace without renewing the whole package.

In practice

Rotation and movement in practice

All projects

Circular carrier with cables and hoses under the swing bridge

Featured project

Cable management for the swing bridges at Sas van Gent and Sluiskil with Kabelschlepp rotary carriers

For the swing bridges at Sas van Gent and Sluiskil, we used Kabelschlepp S1250 rotary carriers in a housing of our own design with running and guide wheels, and took care of assembly and installation on site.

Customer: Central government
Location: Sas van Gent and Sluiskil
Sector: Infrastructure
Solution: Cable carriers
Environment: Outdoors, rotating movement in a tight housing
Assembly: Own housing with running and guide wheels, installation on site

Read the project