Hand ToolsSurface roughness testers

Surface roughness testers

Roughness measurement (Ra, Rz…)

Surface roughness testers measure the surface finish of a part through parameters such as Ra, Rz, Rq and Rt, quantifying how smooth or rough the surface is.

A good finish is critical for sealing, friction, wear, and the appearance of a part; that is why it is controlled on machined, ground, and polished surfaces.

Portable models are available for shop-floor measurement, and benchtop models for the laboratory, with analysis software.

Main features
They measure the roughness of the surface finish
Ra, Rz, Rq, Rt parameters and more
Portable and benchtop models
Brand
Typical applications
  • Surface finish control
  • Inspection of ground parts
  • Seal verification
  • Production quality control
  • Product development
  • Process analysis
  • Metrology laboratory
  • Quality assurance
  • Comparison against specification

Featured products

ProductTypeDescriptionParameters
SR100Portable surface roughness testerSimple portable stylus-type surface roughness tester for measuring surface finish in the shop and in the field.Ra · Rz
SR160Portable surface roughness tester with more parametersPortable surface roughness tester with more parameters and memory, ideal for shop-floor inspection.Ra · Rz · Rq · Rt
SR400Surface roughness tester with Bluetooth and automatic calibrationHigh-end surface roughness tester with Bluetooth connectivity, automatic calibration and full parameter analysis.Ra · Rz · Rq · Rt · Rmax
ComparatorsSurface roughness comparator (touch-visual)Reference plates for comparing surface finish by touch and sight against known processes (turning, grinding, milling…).—
AccessoriesSurface roughness tester accessoriesProbes, stands, calibration standards and cables.—

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