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Surface Roughness Tester Profilometer # SRG-4500

Range/Size: See specs below

Graduations: See specs below

This product has been discontinued.
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Product Description

SRG-4500 Surface Roughness Tester Profilometer

The newest addition to our state-of-the-art surface roughness testers profilometer, 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 profilometer is clearly the new leader in ultra accurate surface profile testing. These surface roughness testers profilometers 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 profilometers 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 profilometer 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 profilometers to mobilize productivity throughout the shop.

The range of the SRG-4500 Surface Roughness gage is:

  • Ra, Rq: 0.01-40 microns
  • Rz,Ry,Rp,Rt,R3z, Rm: 0.02-160 microns
  • Sm, S: 2-4000 microns
  • Rsk: 0-100%

The accuracy of the SRG-4500 Surface Roughness gage is less than or equal to 10%

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:
    • 0.01 microns +/-20 microns
    • 0.02 microns +/-40 microns
    • 0.04 microns +/-80 microns
  • Repeatability: Less than or equal to 6%
  • 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 5 microns
  • Pick up Force: <4mN
  • Filter: RC, PC-RC,GAUSSIAN,D-P
  • Data output: Yes
  • Operating temperature: 41-104 Degrees F (5-40 Degrees C)
  • Weight: 0.97lb(440g)
  • Dimensions: (119 x 47 x 65mm)
  • Power: Li-Ion rechargeable battery
  • Auto shut-off


  • 15 Different roughness parameters
  • Inside/Outside Diameters
  • Stylus position indicator
  • Output to optional printer/PC
  • Extended memory functions


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

To see a video on the Phase II SRG-4500 surface roughness/profilometer: Click Here

If you have any questions about the SRG-4500 Surface Roughness Tester or want to see if this gage will work for a specific application, please call, live chat or email us at info@higherprecision.com.


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