Klingelnberg P 65

Cyclo-Palloid is Klingelnberg's proprietary face-milling process for producing spiral bevel and hypoid gears. In this process, a face-mill cutter head with multiple blade groups rotates continuously while the workpiece indexes between each cut. The resulting tooth has a lengthwise curvature (the 'Palloid' characteristic) that provides favorable load distribution across the tooth face. Cyclo-Palloid gears can be lapped after cutting (conventional finishing) or hardened and then ground on Klingelnberg G-series machines. The process is dominant in automotive axle production.

KIMoS (Klingelnberg Integrated Manufacturing of Spiral Bevel Gears) is Klingelnberg's proprietary software platform that connects machine design, setup, cutting, grinding, and inspection data in a single integrated system. On the P 65 cutting machine, KIMoS manages the machine setup from bevel gear design parameters (module, spiral angle, number of teeth, face width), generates the cutting cycle automatically, stores process data for quality traceability, and exports measurement data for closed-loop feedback from gear inspection machines. This integration reduces setup time and enables true SPC-controlled bevel gear production.

Yes. The P 65 cuts both spiral bevel gears (where pinion and ring gear axes intersect) and hypoid gears (where the axes are offset — the common configuration in automotive rear axles). Hypoid offset enables larger pinion diameter relative to the ring gear, improving strength and NVH performance. Klingelnberg's Cyclo-Palloid process handles both geometries within the machine's capacity envelope. Hypoid gears require additional KIMoS setup parameters for the offset calculation.

The Gleason Phoenix 450G uses Gleason's face-hobbing process (Sequential Duplex), which produces a different tooth geometry than Klingelnberg's Cyclo-Palloid. Both are valid for automotive bevel gear production; the geometric differences affect noise, efficiency, and ease of matching between mating pairs. Automotive OEMs typically standardize on one process or the other across their axle production. Switching between processes is a major investment in new tooling, software, and engineering — so the P 65 vs Phoenix 450G choice is typically determined by the existing process ecosystem at the production plant.

The P 65 supports dry cutting — machining without cutting oil — using CBN (cubic boron nitride) coated carbide blade tooling designed for high-temperature interrupted cutting. Dry cutting eliminates the cost and environmental burden of cutting oil management, heating, and disposal in high-volume production. Dry cutting also improves chip handling because chips are not contaminated with oil. The requirement is CBN tooling specifically designed for dry bevel gear cutting — conventional HSS or uncoated carbide blades cannot sustain the heat load of dry cutting.