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NDT TECHNOLOGY ΕΛ

Precision Alignment & Metrology

Surface Roughness Measurements

Surface roughness measurements with the Mitutoyo SJ-400 instrument.

After every grinding or honing operation, roughness decides whether the surface will hold its oil film: the Ra and Rz values document that the machining was done — and done right.

Ra 0.28 μm
Indicative reading (SJ-400)
Rz 1.5 μm
Indicative reading (SJ-400)

Case studies & field applications

Connecting rod's bearing

Roughness measurements in connecting rod's bearing
Roughness measurements in connecting rod's bearing

Crank pin of main-engine crankshaft

Roughness measurements on crank pin of crank shaft of main engine
Roughness measurements on crank pin of crank shaft of main engine

Field photos

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