STL's zirconia liners offer lifetime cost savings, significantly longer service, better
In addition, STL's zirconia liner is a proprietary Zirconium-based matrix that has significantly
Zirconia exhibits better impact strength.
Zirconia is harder than alumina.
Zirconia can be honed to finer surface finishes than alumina, Finished to 4 RMS, the
All three of these property advantages translate to lower ownership costs. The improved wear
Reduced liner and piston wear.
Increased impact characteristics.
Lower thermal load on the liner wash.
Higher thermal ratings.
HP design with shoulder-on-hull to prevent sleeve.
D tolerances of +0.010"/-0.000".
Surface finish of 4-8 RMS.
Hardness is HV 0.3 kg/mm -1100/1200 (92-94 Rc).
Improved performance for high temperature applications.
Liner sizes are available from 4"-8" for all popular mud.