The road to perfection in automation

Much has changed since then. The focus is no longer on reducing start-up times, but rather on longer automated production runs. Digitalization also provides even more impetus. However, Hermle's basic philosophy remains unchanged: a single point of contact for a complete solution - from original design to service, even after the warranty period.

"When we introduced pallet changers, we wanted above all to make the machines and the production process in general as flexible as possible," Gerd Schorpp, CEO of HLS Hermle Systemtechnik GmBH begins his story. But to optimize productivity, the manufacturer took the step to the top tier in terms of automation 15 years ago with the introduction of its first robotic system. "Those robotic systems - unlike the pallet changers - had to be able to be combined with almost all machines in the Hermle program. Using a robot system allows machines to run unmanned, because a robot can be used for handling components, tools as well as pallets," the CEO clarified. "However, pallet changers are not redundant today. Especially for handling long and heavy workpieces, there is still no alternative available. While fast and flexible robots can lift pieces up to 420 kg, the PW 3000 pallet changer, developed for our Hermle C 52 U and C 62 U series, can be used for workpieces up to 3 tons."

A new approach

Hermle therefore invested in developing solutions that could be combined with different machines, allowing the manufacturer to also produce them in larger quantities. Space for even more pallets and intuitive operation were other specifications, and the machining center had to remain accessible so that operators could also operate it manually, for example, for machining heavy pieces. After all, the maximum weight of a workpiece is always determined by the automation system and not the machine. "In 2017, we launched the HS flex system, compatible with six machine types and equipped with one or two storage modules for up to forty pallets. With the Hermle Automation-Control-System (HACS), we developed our own automation software, which allows intuitive operation and control. The software calculates run times and tool usage in advance and provides an overview of system, work plans, pallets, jobs, tools and more," Schorpp continued. "Last year we introduced the HS flex heavy for handling workpieces up to 1,200 kg, compatible with four machines in our range, including for the first time also the C 650." 

A flexible solution tailored to each application

Today, HLS Systemtechnik offers a robot system for each individual application, from the RS 05-2 for small pallets and components to the RS 3 system for workpieces up to 420 kg. "Thanks to these automation solutions, our customers can increase productivity without the need for more personnel. This is important in a society where it is not easy to find specialized workers," Schorpp concludes. "We provide a customized solution, operated via the Soflex control system. If the robot is combined with more than three machines, we implement a linear axis. This gives the robot sufficient freedom of movement and also allows dimensional equipment and maintenance devices to be integrated into the automated system."