Surface Roughness Tester
  • Surface Roughness Tester

Surface Roughness Tester


  • Product description
  • Specifications
  • Surface Roughness Tester

    RUG-400 Roughness tester is a probe-style profile measuring instrument. It is applicable to measure surface of various types of parts, such as planar, incline, cylinder, circular and spherical parts, grooves and bores. It is also applicable for measuring roughness of roll path, either outer or inner, of bearings. A precision locating mechanism is provided to ensure different type of parts to be adjusted into proper position of measurement. The profile shape of the test piece is dynamically displayed on the screen and the portion to be tested is selected quickly and conveniently. All the evaluated roughness parameters, the profile curve and the tp curve are display on the screen clearly. 

    It is in compliance with ISO5436, ISO11562.

    Key words:
    • Surface Roughness Tester
  • Evaluation Parameters

    Ra, Rz, RS, RSm, Rp, Rv, Rq, Rt, Rmax, D, Rmr

    Roughness range

    Ra 0.01 - 10 μm

    Sampling length

    L: 0.08 ,0.25, 0.8, 2.5 mm

    Measuring length

    Ln: 1L, 2L, 3L, 4L, 5L Selectable

    Evaluation length

    0.08, 0.25, 0.8, 2.5mm

    Measurement error

    ± 5 %


    0.001 μm

    Max.specimen height



    Standard type  Height<8mm
    Special probe for small bore
    radium:2um, pressure: 4 mN

    Scanning speed

    0.5 mm/sec

    Linear range

    Vertical 600 um

    Longitudinal rangey

    40 mm


    ISO 2CR
    Gaussian, RC Filters

    Measurable range of bore

    ≥ф5 mm

    Universal stage

    Rotation 360 degree 
    Declination ±10 degree 
    X-Y  Adjustment 15 mm

    For measurement of bearing

    Max.outer dia. of inner ring 280mm
    Min.inner dia. of outer ring 12mm
    Thickness:≤160 mm

    Operation System


    Standard parts & attachments

    Column & Base
    Control box
    Driving unit
    Universal adjustable stage,
    Standard type probe
    Special probe for small bore
    Glass roughness sample
    Computer & printer

    Power supply

    220 VAC ±10%, 50Hz

    Gross weight

    100 kg


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