Corundum Grinding Machines Have Different Specialties
Junker corundum grinding machines fulfill the requirements of series production for a wide range of different workpieces.
Junker’s Zema line of corundum grinding machines fulfill the requirements of serial production for a range of workpieces. The CNC machines grind elements such as flanges and journals on crankshafts as well as gear, turbocharger, and cardan shafts or spray nozzles with both precision and reliability. In total, the corundum line comprises three models, each of which has different areas of focus.
The Numerika is designed for the series production of various workpieces as long as 3.5 m. The Kargo cylindrical grinding machine takes ultra-heavy workpieces such as shafts weighing as much as 6 tons for generators or electric motors. Rounding off the Zema series is the Flexa corundum grinding machine, which is capable of processing as many as three grinding assignments with precision. The modular design of the series is designed for small- and medium-size production runs, including internal, external and thread grinding.
Whether grinding precision parts for vehicle engines or heavy shafts and axles, the machines are said to provide high-quality results. They come with a robust machine bed, hydrostatic guides and grinding spindles mounted on rolling or hydrostatic bearings. A user-friendly control system comes with all the necessary input masks for precision corundum grinding and surface quality.
Designed for integration into production lines, the machines also come with a high level of automation. Several workpieces in a part family can be stored in the control system, enabling quick change-over from one workpiece to another in production. To ensure a trouble-free production sequence, the machines are also equipped with automatic loading and unloading systems.
In vertical grinding, the workpiece is held upright in a rotary chuck with the grinding spindle overhead. This configuration can improve roundness, facilitate single-setup processing and prolong the life of the machine. Loading and unloading may gets easier, too. Workpieces with relatively large diameters and short lengths benefit the most from vertical grinding.
Roughing and finishing on a single machine, using a single setup, has appeal for most shops. The advantages in time savings and accuracy are obvious. Eliminating the transport of workpieces between machines, as well as the setup for those secondary operations, is a boon for throughput. Critical features that need to maintain dimensional relationships can be much more reliably produced if machined complete in one clamping.
Advanced grinding equipment gives this shop the flexibility and automation it needs to serve customers with either rapid-response or high-volume jobs.