Surface Roughness Tester Gauge
Surface Roughness testers use a contact stylus sensor or pick-up to accurately determine the finish or roughness of a machined surface. We offer a complete range of options to suit your application and budget.
Basic testers allow you to test in the most common scales of Ra, Rz, Rq and Rt to BS EN ISO 4287:2000.
Advanced units can measure up to 30 more profile parameters and show waveform graphs and conversions. They also have the ability to test internal bores, deep grooves and hard to reach locations with optional styluses and extension arms.
The most common type of Surface Roughness Testers include both Ra and Rz test parameter scales as standard, with the Ra Scale being measured between 0.05µm - 10µm and Rz Scale between 0.1µm - 50µm on the base models and wider ranges available on advanced units.