Surface Roughness Tester

Surface Roughness Tester

Surface Roughness Tester

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Regular price $1,885.00 $1,705.00 Sale

    • 15 Different roughness parameters

    • Inside/Outside Diameters

    • Stylus position indicator

    • Output to optional printer/PC

    • Extended memory functions


The newest addition to our state-of-the-art surface roughness testers, the SRG-4500 will instill the highest level of confidence in your production, shop floor or QC lab. Extended memory and output coupled with multiple useful functions the SRG-4500 surface roughness tester is clearly the new leader in ultra accurate surface profile testing.
These surface roughness testers are distinguished by a high level of accuracy, multiple parameters and simplicity of operation. Extremely sensitive and highly accurate readings from this Phase II surface roughness tester are offered via 15 popular surface roughness scales including Ra, Rq(Rms), Rt, Rz and Rmax.

The diamond stylus is hypersensitive and sophisticated enough to allow for a .001 (um) micron display resolution. The SRG-4500 surface roughness tester can utilize an easy interface to allow for changes of in/mm (uin/um), cutoff length, sampling length, parameters, level of test(stylus position), digital filters and more! Measurement results are displayed as large characters on the LCD screen for easy recognition.

Battery powered portability allows the SRG-4500 surface roughness testers to mobilize productivity throughout the shop.

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SRG-4500 comes supplied with:

  • Base Instrument with 5µm Stylus
  • Leveling Plates
  • Calibrated Reference Standard
  • A/C Adapter
  • Rugged Carry case
  • Operation Manual
  • Certificate of Calibration

Technical Specifications

  • Measures flat, Inside, Outside Diameters and sloping surfaces
  • Measures grooves and recessions: wider than 0.16in (4mm)
  • Surface Roughness parameters: Ra, Rz, Ry, Rq, Rt, Rp, Rs, Rv, Rsm, Rmax, Rm, R3z, Rsk, Rpc, Rmr.
    Surface Roughness standards: ISO/DIN/JIS/ANSI
  • Display resolutions: 0.01µm/+/-20 µm
    0.02µm/+/-40 µm
    0.04µm/+/-80 µm
  • Measuring accuracy: ≤±10%
  • Repeatability: Less than or equal to 6%
  • Measuring range:
    Ra, Rq: 0.01-40µm
    Rz,Ry,Rp,Rt,R3z, Rm: 0.02-160µm
    Sm, S: 2-4000µm
    Rsk: 0-100%
  • Maximum drive range: 0.7in(17.5mm)
  • Cut-off length: 0.009/0.03/0.09inch (0.25/0.8/2.5mm)
  • Tracing speeds:
    speed 1mm/s (sampling length 2.5mm)
    speed 0.5mm/s (sampling length 0.8mm),
    speed 0.135mm/s (sampling length 0.25mm)
  • Sensor: Inductance type
  • Sensor-stylus: Diamond, radius 5µm
  • Pick up Force: <4mN
  • Filter: RC, PC-RC,GAUSSIAN,D-P
  • Data output: Yes
  • Operating temperature: 41ºF-104ºF (5º-40ºC)
  • Weight: 0.97lb(440g)
  • Dimensions: (119 x 47 x 65mm)
  • Power: Li-Ion rechargeable battery
  • Auto shut-off
Optional accessories available for the SRG-4500 surface roughness testers include:
-Stylus Extension Rod
-Support Stand
-Deep Slot Stylus
-Small Bore Stylus
-Curved Surface Stylus

Main Test Screen

Language selection

Roughness parameters

Parameter setting screen


Stylus level indicator

Roughness Profile