These are tools for the automotive industry for machining crankcases, cylinder heads and other components made of aluminum or non-ferrous metals where no chips are allowed inside. The special design of the insert seats and insert topology, supported by the coolant pressure, creates a suction effect at high speeds that removes almost 100 percent of the chips from the workpiece.

During conventional face milling of crankcases and cylinder heads, chips fall into the existing water spaces and get stuck there in such a way that they cannot be completely removed by the automated washing process. They have to be removed manually in a laborious process. If this is not successful, the expensive component is actually a reject.

The new PCD face milling cutter MaxiMill SEC12 (Suction Effect Cutter / insert size 12) solves this problem. Thanks to inserts with a ground chip evacuation notch and their ingenious positioning in the cutter body, the tool develops a suction effect that evacuates the chips from the component. The jet angle from the flat surface is around 30 degrees, which means that virtually no chips can penetrate the inside of the component. The removal is supported by the cooling lubricant, which brings the appropriate pressure behind the chips thanks to its special guidance.

The new Ceratizit MaxiMill SEC12 also has numerous other advantages to offer. One of the key factors here is its modular design using standard components from stock, which enables versions for every requirement. The milling cutter consists of a milling holder in HSK-A63, -A80 or -A100 design, which accommodates the respective base body of the slip-on milling cutter. These are available in various diameters. Other sizes and variants can be customized.

The PCD-tipped inserts are characterized by long tool life and cutting speeds of up to 3500 m/min. Fine-tuned insert geometry allows feed rates of 0.1 to 0.2 mm per tooth. The number of teeth is optimally matched to the performance of standard machining centers on the market. Ceratizit offers two variants for roughing: one for up to 8 mm infeed and one for a maximum of 4 mm infeed, which is somewhat more cost-effective due to the lower PCD input.

The MaxiMill SEC12 is easy to assemble. Even the inserts can be mounted without any adjustment effort thanks to the high precision. For particularly high quality requirements, the user can fine-balance the tools using heavy metal screws on the cutter collar. The resulting high concentricity protects the spindle, ensures longer tool life, lower vibrations and enables a surface quality of around Rz=20 µm during roughing.