POMA, the world leader in cable transportation, has used Enerpac strand jack technology to streamline aerial cable maintenance operations on the 3 km Téléo cable car in Toulouse - the longest urban cable car ever built in France. Developed in collaboration with cable maintenance specialist, COMAG, the new system significantly reduces cable tensioning times.
The 3-kilometer Téléo cable car route connects Paul Sabatier University to the Oncopole Institute via the Rangueil Hospital, in just 10 minutes, with an overflight up to 70 meters above ground level. It uses four carrier cables, with two carrier cables per track, as well as a looped traction cable. The cabins run on these cables, similar to a railway track. The cables run without breaks from Paul Sabatier University to Oncopole-Lise Enjalbert station.
Rope repositioning is a key part of cable car maintenance. POMA wished to optimise the time required for the operation and, above all, to leave the cable sliders in position by pulling two track ropes at the same time. To achieve this, the two track ropes were attached to a lifting beam which in turn was attached to an Enerpac HSL 20006 strand jack. By stroking the strand jack, the cables can be tensioned up to a maximum of 240 tons in incremental steps of 480 mm.
After slackening the cables at Paul Sabatier station, the track ropes were tensioned by the strand jack positioned at the Oncopole-Lise Enjalbert terminus 3 km away - at the end of the cable car run. During the tensioning operation, 30 m of cable were moved to regain the correct cable position.
“Pulling both cables at the same time, in perfect synchronisation, was a major objective of the operation, until now we’re relied on a pulling winch and hauling system for each cable, a time consuming process,” said David Blanchet, project manager, COMAG. “The Enerpac strand jack was the right choice for us thanks to its operating speed, ease of use and small size, which allowed us to place it between the two track ropes in a horizontal frame. We look forward to deploying the stand jack system on other cable maintenance projects.”
Enerpac Strand Jack technology
The Enerpac HSL 20006 strand jack was supplied by Faure Technologies, an authorised Enerpac distributor and strategic Enerpac Heavy Lifting Technology (HLT) partner. Throughout the project, Faure Technologies played a key role in supporting POMA and COMAG. This collaboration reflects the strong partnership between Enerpac and HLT, as well as Faure Technologies’ dedication to providing reliable and high-quality solutions.
The Enerpac strand jack is a hydraulic lifting and tensioning device that works by gripping and pulling on multiple steel strands in a controlled, step-by-step manner. By alternately gripping and releasing the strands, the jack effectively ‘displaces’ or ‘lifts’ heavy loads.
For more information on Enerpac Strand Jacks, visit www.enerpac.com.
For more information on POMA, visit www.poma.net.
