SPK Silicon Nitride Ceramic
High Performance in turning and milling
The main application area of SPK-Silicon Nitrides is the High-Performance machining of cast iron also under difficult cutting conditions such as heavily interrupted cuts and varying depths of cut.
SL 508
This new silicon nitride is ideal suited for high-performance rough milling of cast iron. The outstanding wear resistance in combination with excellent toughness promise good process reliability under the roughest conditions.
SL 506
Special grade for finish turning operations on grey cast iron materials. The grade incorporates mechanically resistant materials which enable an enormous improvement of the grade’s edge stability and wear resistance without affecting its toughness.
SL 500
Universal silicon nitride grade particularly suited for roughing and finishing of grey cast iron materials performed with both continuous and interrupted cuts.
SL 200
This grade is distinguished by etreme toughness and is particularly suited for roughing of cast iron even under unfavourable cutting conditions.
SL 554 C
The gold colored TiCN-TiN multilayer coating increases wear resistance while reducing the frictional forces between insert and workpiece. It is especially suited for rough turning of high-strength nodular cast iron with both continuous and highly intermittent cutting.
SL 550 C
This silicon nitride grade comes with a TiN-Al2O3 coating which enables roughing and semifinishing operations on nodular graphite cast iron even under severe cutting conditions.
SL 808
This new silicon nitride is ideal suited for high-performance rough milling of cast iron, The outstanding wear resistance in combination with excellent toughness promise good process reliability under the roughest conditions.
SL 854 C
is a coated all purpose milling grade for roughing and finishing operations of cast and ductile cast iron.

