Five-Axis Spark Grinder Sharpens Diamond Cutting Tools

The universal five-axis Dia-2200-Mini from Lach Diamond is designed for the automatic sharpening of diamond tools and saw blades.


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The universal five-axis Dia-2200-Mini CNC spark grinding machine from Lach Diamond is designed for the automatic sharpening of diamond tools and saw blades with diameters as wide as 530 mm. The machine is capable of sharpening new or servicing old diamond end mills and jointing cutters both with and without axis angles. It is also effective on diamond scoring saws and saw blades of all tooth types. The grinder offers profiling programs (both contour-controlled programs with copper electrodes and in-feed programs with graphite electrodes).

A program for multiple production is available, capable of automatically sharpening multiple diamond tools or axis angle jointing cutters. The company has also developed an axis angle program that allows for extreme axis angles of more than 45 degrees during production and service.

The system was designed for grinding tools for machining fiber composites such as glass fibers (GFP), carbon fiber reinforced plastic (CFRP) and basalt fabrics in the aerospace, agricultural machinery and automotive industries.


  • Vertical Grinding Has Advantages

    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.

  • Adaptive Machining For Turbine Blade Repair

    Real-time-responding CNC brings new possibilities to difficult machining applications.

  • Jig Grinding On A Machining Center

    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.