Their first KNUTH Cylindrical Grinding Machine was a used RSM 500 CNC. In 2011, two brand-new machines were added, which are now being fully utilized every day. Kopp and KNUTH share the common goal of constantly providing reliable quality and great service. In addition, both companies put great emphasis on ensuring costeffective processes at their customers’ sites.
In 1970, Helmut Kopp Sr. founded the tool grinding business, Kopp Schleiftechnik GmbH, with three manual tool grinding machines. Today, the company is headquartered in Lindenfels, Germany, has 40 employees and serves customers in the automotive, aerospace, medical, energy, and engineering industries across Germany and in neighbouring countries. In 2016, Kopp expanded and moved into its newly constructed headquarters and 1,500 m² production area. At this location, they operate 20 CNC grinding machines for an annual production of approximately 400,000 high-precision carbide milling tools for cutting and drilling metals and plastic materials. Their standard portfolio alone includes approximately 1,000 individual products. All tools can be reground or reshaped multiple times. This is part of Kopp’s standard offering, just as their inhouse delivery and pick-up service.
Kopp remembers, how he read “in a trade magazine about KNUTH Werkzeugmaschinen, and shortly thereafter, a dealer from Hamburg offered us a suitable used KNUTH Cylindrical Grinding Machine.” The dimensions, precision, and the price of the RSM 500 CNC were just right. Kopp accepted the offer. KNUTH brought the machine back to its headquarters in Wasbek, Germany, to test the machine functions, accuracy, and to restore any deviations, if needed. “Cylindrical grinding is an exacting discipline,” explained Patrick Jöhnk, Sales Associate at KNUTH Werkzeugmaschinen. “On one hand, we often have to deal with extremely hard metals, and on the other hand, it requires exact calculations that consider heating and expansion of the material during machining, which has to be compensated for by the machine.” More intricate workpieces require a more exacting machine and operator processes. The RSM 500 CNC features a solid machine base with wide V guideways and box ways to ensure minimum vibration and smooth operation for optimum work results. The grinding spindle provides superior precision and features hydrodynamic bearings.
Accuracy Within One-Thousandth of a Millimetre
After the machine was set up at the Lindenfels facilities, a KNUTH service technician provided training to familiarize Kopp employees with the machine. “We use the RSM 500 for exact cylindrical grinding of solid carbide metal rods, where an accuracy within one-thousandth of a millimetre is required, before moving the rods on to the next step, where they are refined with a stepped cutter,” explained Kopp. Kopp was fully convinced of this machine’s capabilities. In 2011, Kopp bought two more RSM 500 CNC machines, which now are fully utilized every day. Kopp states that he is very satisfied. “We rarely have downtimes with our KNUTH machines, and the occasional replacement of a spindle or minor repairs are quick and easy. Both companies pursue the common goal of providing reliable quality and excellent service, while always considering the cost-effectiveness of the processes at the customer’s site.
“Our customers should be able to focus on their core business”, says Jöhnk to summarize the common core value. “That is why KNUTH offers individualized service packages that are customized for every machine and every workload. This way, we can prevent failures caused by wear and tear, and support an interruption-free”.
Cylindrical grinder with powerful CNC control for inside and outside grinding
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