KAPP NILES KX 300 P

The KAPP NILES KX 300 P is a 6-axis CNC generating and profile grinding machine built for high-precision gear finishing up to 300 mm tip diameter. KAPP NILES has been grinding gears in Coburg, Germany since the 1950s, and the KX 300 P represents decades of refinement in their medium-size gear grinding platform. It's a machine you'll find in aerospace, automotive, and precision industrial gear shops worldwide.

The KX 300 P handles modules from 0.5 to 8 mm in generating mode and 0.5 to 10 mm in profile mode, with a maximum face width of 320 mm and helix angles up to 45 degrees. That module range covers everything from fine-pitch instrument gears to heavy-duty industrial pinions. The tool spindle features counterbearing support on both ends, and auxiliary spindles allow the use of grinding wheels as small as 25 mm diameter — critical for grinding gears in tight spaces or with interference-prone geometries.

At 9,500 kg, the KX 300 P has serious mass behind it, which translates to vibration damping and thermal stability during long grinding cycles. The Siemens Sinumerik 840D control runs KAPP NILES' proprietary grinding software, which handles everything from standard involute profiles to complex modifications including tip relief, root relief, crowning, and bias corrections. The software also integrates with KAPP NILES' in-process measurement systems for closed-loop quality control.

The machine competes with the Liebherr LCS 300 (now LCS 380), Reishauer RZ 260, and Gleason Genesis 200GX. Where the Genesis wins on raw cycle time with its dual-spindle design, the KX 300 P wins on versatility: generating and profile grinding, dressable and non-dressable tools, manual or automated loading, and the ability to grind with wheels down to 25 mm diameter. For job shops and aerospace gear producers that value flexibility over pure throughput, it's the right choice.