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luglio 19, 2022 - renault.group

Retrofitting robots: the other operation at the Refactory

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At the end of 2020, the Renault plant in #flins (France) embarked on a new path, to focus entirely on the circular economy.

This is how the Refactory was born. It is well known for refurbishing used vehicles and for its role in Renault Group’s approach – i.e. generating value throughout the life cycle of its brands’ models.

But the vehicles are not the only ones that are enjoying the benefits of transformation. The Refactory in #flins now houses a new #workshop that retrofits robots. How can the Group's industrial resources be made 20 years younger? We asked the experts.

19 July 2022  14:00

Dozens of robots are waiting in line for their metamorphosis at the Refactory in Flins. A bit like Benjamin Button, the character in the short story by F. Scott Fitzgerald who ages backwards. How? In this case, at the Retrofit unit, which is tasked with refurbishing them before they return to production lines. This unit has revamped 40 robots so far this year to contribute to starting up substantial projects such as the All-new Megane E-TECH Electric in Douai. Let’s find out more about this new “rejuvenating” operation, starting at the #workshop where it all began!

Sandouville, Maubeuge and Douai... sharing robots

It looks like a senior-citizen get-together of sorts. The robots that retired from the plants in Sandouville, Maubeuge and Douai are gathered in the #workshop that Nathalie, Deputy General Manager Tooling in #flins, runs. In the past, each plant retrofitted its own machines. Now, the Refactory revamps them all, to enjoy the benefit of specialist teams pooling their expertise in a dedicated #workshop. By 2023, the team will double in size and have eight technicians and a scheduler.

Once the robots are cleaned through and through, the roboticists examine them to determine what they need to do to “revitalise” them. It can be replacing the electronic card, harness, motor or wrist (part of the arm). And the Refactory can handle them all. In total, it takes about 40 hours to retrofit a robot these days.

The robots that got here in 2021 came from Maubeuge plant, when it stopped producing the previous Kangoo and started producing the new version in a new #workshop. The first 18 welding and handling robots were dismantled and sent to #flins for a makeover. Once they are refurbished, they will take up their new duties in Douai, on the All-new Megane E-TECH Electric assembly line.

“By pooling #robot retrofits, we have reduced investments in new projects and repair costs.

This operation has also shortened supply chains – which are getting longer and longer for new robots – 40 weeks instead of 20 weeks initially.”

Nathalie, Deputy General Manager Tooling

The stages of the metamorphosis

There are several steps to go through before retrofitting robots: recording the models’ end-of-production dates, determining when facilities will be available and centralising plants’ requirements. This is what Gabriel, an industrial capacity life cycle architect, does. His job is to coordinate all the inventorying operation with a correspondent at each plant and liaising with future clients. After the first step, i.e. assigning, the retrofit crew takes over robot dismantling, transport and transformation. They clean them, drain them, change parts, update the system, test their accuracy and endurance, and prepare them to ship out. All those steps are necessary to revamp production systems properly.

Next stop: Spain!

The #workshop, which started up barely a year ago, is already extremely successful and orders for robots are flowing in. Even Spain has signed up to revamp part of the sheet metal shop at the plant in Valladolid. The plant has ordered six robots (including four crimping ones), which will be supplied by Sandouville then retrofitted in Flins. To deal with all these requests, the #workshop is also planning a makeover: in July, it will be extended and house new facilities to increase its capacity. And, in full disclosure, it is already preparing a few robots for an eagerly anticipated model: the future electric Renault 5, which will be made in Douai within the Renault ElectriCity sites.

“We are using every opportunity to increase our choice of robots and meet Group plants’ requirements.

Starting in 2023, our objective is to retrofit more than 170 robots a year to supply ElectriCity projects. This operation will save three million euros a year.”

Pascal, Assembly Process Design Expert

This new and economically virtuous operation is meeting challenges around the ecological transition and more sustainable consumption. Buying less, extracting value from products that already exist and creating a new industrial model centred on the circular economy is one of Renault Group’s priority commitments.

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