When 250 km/h high-speed model helicopters take to the air, all the drive elements need to be perfectly coordinated with one another. This is ensured by high-precision components, as produced by Grenzemann Präzisionstechnik GmbH on a new Sinumerik-controlled Hyundai turning machine.
The high-speed model helicopters from the Minicopter company based in Vellmar, Germany, are fast and flexible and offer superb control. The Sinumerik 828D controlled Hyundai L210LM turning machine, on which various aluminum parts are manufactured for these high-speed helicopters, demonstrates similar qualities.
The modern L210LM turning machine with a bar loader – made in South Korea and distributed in Germany by NCT Reber Maschinen GmbH – has been in place at the Grenzemann Präzisionstechnik contract manufacturing company in Eisenbach since the start of the year. Harald Müller, technical managing director at Grenzemann, had made plenty of positive experiences with dealers and manufacturers and therefore invested in the Hyundai turning machine: “The machine is ideally suited to the drive components of various helicopter models. But ultimately, that is only a small part of what we manufacture with the turning machine.”
The company, which was founded around 35 years ago, has a workforce of 18, has 15 CNC milling and turning machines in production, works in double-shift operation, and serves many different industries. “When we started out, focusing on one customer group almost led to disaster for us. We learned from this, and today no single industry or customer has more than a 15% share of sales,” explains Müller.