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Rittal AX enclosures sped up machining and fitting out

Rittal AX enclosures sped up machining and fitting out

Can enclosures be machined and fitted out even faster? Emma Ryde – Rittal UK’s product manager for enclosure systems – looks at how the company’s AX compact enclosure speeds things up.

A new working day dawns at Murer-Etechnik in Germany’s Westerwald region. In the incoming goods section, a young man wearing a black T-shirt with the company logo on the front and the sleeve is taking delivery of a pallet with eight AX compact enclosures from Rittal. Production manager Steven Lauer is already waiting for their arrival. In just a week’s time, the UL-compliant enclosures are set to be delivered to a special-purpose machinery manufacturer based in the Cologne area. Lauer, can’t wait to see how the new AX enclosures differ from the pre decessor model, the AE.

Lauer has assigned the task of fitting out the AX enclosures to three of the plant electricians. One of them is already clamping the first enclosure door into the Perforex CNC machining centre. The mounting plates are next. Progress is rapid, because the doors and mounting plates are simply added to the delivery package and staff don’t have the hassle of first detaching them from the enclosure, as is normally the case. Using the digital twin’s manufacturing data from Eplan Pro Panel, the machine cuts all the necessary holes in double-quick time. “There are hardly any questions to deal with and you can see the results straight away,” Lauer comments.”

It’s now time for pre-assembly, configuration and wiring. A fully automatic wire processing machine has already produced the necessary cable harnesses – also using data from the design engineering department. In this way, Meurer-Etechnik is gradually implementing ‘enclosure manufacturing 4.0’.

Lauer indicates an area in the rear part of the light-filled factory building to three members of staff, who lift the compact enclosures onto small metal trestles. Next to each of the plant electricians is a trolley with tools and a number of boxes containing electronic components. The enclosures are now lying on their backs with the doors fitted. Beside them are the mounting plates, to which the men next attach the mounting rails and cable ducts. Contactors, terminals, inverters and similar components are then installed.

During this configuration process, the electricians regularly consult their tablets to compare their work with the 3D model. Next comes the wiring. Last but not least, the fully wired mounting plate is fitted into the enclosures.

Lauer has been with Meurer-Etechnik for ten years. Back when he was an apprentice, he still had to learn how to position each hole manually. “The technology has come a long way since then,” he says.

But what is different about the AX?” The answer: “It feels like there’s more room on the gland plate.” And there is indeed 30 per cent more space for inserting cables. “That’s a huge advantage,” insists Lauer, because digitalisation is continuously increasing the number of components in the enclosure and thus also the number of cables that need to be routed inside via the gland plate.”

He also takes a closer look at the interior wall of the compact enclosure. “There always used to be problems with the interior fit-out, because there weren’t enough options for fitting the depth stays. That has now changed,” he notes. Being able to install the rails at a variety of heights makes the process of designing the levels more flexible. Lauer points to a grey box on one of the trolleys. There are now only three cable harnesses left in it. “Once the box with the cables starts looking empty, I know we’re on the finishing straight,” he says.

 

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