Robot Stacker
the robot revolution

Patented technology

Single or double robot working cells to ensure maximum productivity and the largest working area available on the market. The patented gripping systems ensure the highest stacking quality even when dealing with large sheets.

First in the world

LAE was the first company to successfully develop and install robotic lines for core stacking.
We have acquired our experience and know-how since 2016, creating dozens of robotic lines that are now active all over the world.

The past: manual assembly

For a long time, transformer manufacturers devoted significant resources to the core assembling process.

Large spaces, lots of equipment and, above all, an enormous manpower were necessary to carry out repetitive, tyring and low-valued tasks.

Internal logistics was also complex and absorbed space, materials and personnel. All these issues without obtaining a finished product of guaranteed quality.

This situation did not comply with modern industrial needs: the automation of these processes was nowadays mandatory.

However, the first attempts made by various machine builders failed to ensure the productivity and flexibility necessary for the process.

So here came the challenge for LAE: how to automate these processes without compromise?



2014: laying the foundations

To ensure flexible handling of the pieces through a precise and reliable system, LAE's first key decision was to use robots. This eliminated all the complications of rigid transfer systems previously offered on the market.

But how to make a robotic cell productive? Cutting machines cut several dozen sheets per minute, and no robot can place them, one by one, over a large area, in such short work cycles.

Here, then, came LAE's other key decision: pre-stacking the sheets in books, so that the robot could move several sheets per cycle.

The concepts for the modern robotic stacker were thus established: LAE's Research and Development department had its work.



2016: successful debut

LAE decided to develop the robotic stacker for a TO25 machine: the first customer was one of the most important cutting centers in the world.

Once the development was completed, in 2016 the line was installed and, right from the initial months of work, it proved to be productive, precise and reliable.

LAE Robot Stacker was born and immediately became a great success: the era of robotic stackers had begun.

Over the following years, the same customer and many other producers of cores and transformers chose this machine model for their production needs.

2018: expanding the product line

The success of LAE's robotic stacker pushed other manufacturers of cutting machines to propose robotic solutions, adopting the same scheme invented by LAE. But LAE's Research and Development team was already a step ahead.

Thanks to the experience gained, important improvements in performance were achieved: larger working areas, greater productivity and higher flexibility.

As an example, in 2018 the double robot stacker for larger cutting machines was born. Additional proprietary solutions were developed, such as the various transport and gripping systems patented by LAE.


Today: the Revolution is here

Today LAE has dozens of Robot Stackers installed all over the world, with a constantly growing demand.

As a matter of fact, the most forward-thinking entrepreneurs want these technologies, in order for their investments to quickly payback and stand the test of time.

To place themselves at the top of their sector and obtain an immediate competitive advantage, producers of cores and transformers can now find in LAE the most experienced partner on the market for robotic solutions.

The Robot Revolution is here.



  • Constant quality of the finished product
  • High stacking accuracy


  • Only one area for cutting and assembling
  • Simultaneous handling of different cores


  • Highest productivity on the market
  • Reduction of overall cutting and assembling time


  • Reduction of labor-cost
  • Reduced scrap material
  • Compact layout
  • No infrastructural impact


No, the Robot Stacker is suitable for any type of production: it makes possible to cut and assemble up to 4 different cores at the same time, thus giving the same competitive advantage both on small and large batches.

No, there is no need for a specialized technician: the user interface is very friendly and easy to use, cutting and assembly sequences are preprogrammed. During installation LAE technicians will quickly train your operators on how to use the machine and to jog the robot.

Absolutely, robots reached the highest standards of reliability and low need of maintenance, and have been used in the most demanding industrial sectors for decades now (i.e. automotive industry).

Yes, there are a lot of cutting and assembling options available.
You have several step lap possibilities when stacking closed cores, or you can stack open cores with any possible step lap.
Flat yokes, horizontal or vertical hidden tips and a lot of core variants can be used when stacking both closed or open cores.

Searching for the top efficiency

Our innovation in the stacking process led us to optimize the decoiling operation, which is another factor of decreased efficiency for traditional cutting lines.


Thus, our R&D team created the Fast Replacement System, a patented technology for the quick coil changeover.

Find out more here.



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