#Surface Roughness Testing

They are many devices you can use to test the Surface Roughness of a metal part.  Surface Metrology is the measurement of small-scale features on surfaces.  When choosing a unit, it all depends on how much money you want to spend and the various features each tester has.  Some of them are Made in China and usually are less expensive.  Below are a few that I recommend at various price levels.

Phase II Surface Roughness Gauge

 http://www.lighttoolsupply.com/phase2

The diamond stylus is hypersensitive and sophisticated enough to allow for a .001(µm) micron display resolution.

Utilizes an easy interface to allow for changes on in/mm (µin/µm), 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-4000 surface roughness testers to mobilize productivity throughout the shop.

Menu driven operating system.

4 different roughness parameters.

Inside/Outside diameters.

Stylus indicator.

RS 232 output to printer/PC.

Extended memory functions.

Auto-off with auto store.
Specifications:
Roughness Parameters: Ra, Rz, Rq, Rt
Assessed Profiles Primary profile(p), Roughness profile(R) tp curve (Mr)
Measuring System Metric µm,  Imperial µ inch
Display Resolution
+/-20 m  = 0.001 µm
+/-40 m = 0.002 µm
+/-80 m = 0.004 µm
Display Range
Ra, Rq: 0.005 µm up to 16 µm
Rz, Rt: 0.02 µm up to 160 µm
Pick Up Measuring Range: +/- 80 µm
Conformance Standards: ISO/DIN/JIS/ANSI
Sensor Specifications: 5 m Diamond Tip Stylus
Sensor Angle: 90°

SPI Portable Surface Roughness Tester

 

 http://www.lighttoolsupply.com/SPI

Portable and Robust for Efficient use in the Work Shop, Yet Delicately Precise for Inspection

Ra - average roughness.

Rz - (RTM) mean roughness depth (DIN).

Meets ANSI, ISO, DIN & Mil specifications.

Roughness in microinch or micrometers.

Digital display located on top.

Includes probe and standard (NIST traceable).

Easy to read LCD readout.

Out of range Hi/Low indicator.

Low battery indicator.

Uses 9V battery for approx. 3000 measurements.

Furnished in fitted case.

Specifications: Overall Dimension: Approx. 5.5"x 3"x 1" Measuring Range: Ra - 1µ" to 250µ"/0.01µm to 6.35µm Rz* - 8µ" to 999µ"/0.2µm to 25.0µm Display Resolution: 1µ"/.01µm Max Stylus Force: 1500mfg/15.0mN *per DIN 4768. Note that the .0002"/5µm stylus radius must be used to measure these parameters

Mahr/Federal Pocket Surf Portable Surface Roughness Gage

 http://www.lighttoolsupply.com/Mahr

 EMD-1500-311

EMD-1500-321  

The Pocket sized completely portable, economically priced tool for performing traceable surface roughness measurements.

Features:

• Pocket sized, compact and solidly built.
• Operates in four probe positions:
  0°, 90°, 180°, and 270°.
• Easily interchangeable probes.
• Measures four, switch-selectable Parameters:
  Ra-Average roughness
  Ry-Maximum roughness depth(DiN)
  Rmax-Max. roughness depth (DiN)
  also called Rtm.
• Built in digital output.
• Supplied with general purpose probe. For most surface roughness applications. Has a 90° conical diamond stylus.

Swivel Fixture
Exclusive Swivel Fixture that will allow you to mount the Pocket Surf horizontally or vertically, enhancing the capabilities of both the Pocket Surf and your heightgage or height stand.

 

Mitutoyo Surftest SJ-210 Portable Surface Roughness Tester

http://www.lighttoolsupply.com/Mitutoyo-Surftest-SJ-210

Surftest® SJ-210 portable surface roughness tester combines high accuracy and measurement speed with numerous innovative features creating a new class leader in surface inspection.

2.4" color LCD display includes backlighting and over-size fonts.

Display direction can be changed to be read vertically or horizontally right and left handed.

Self-timed measurement supported.

Color tolerance judgments, evaluation curves and all data can be displayed in one of 16 languages.

Security management supports password protected function locks.

The detector/drive unit can be detached from the display unit for effortless measurement of awkwardly oriented workpieces.

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	Mitutoyo Gage Block Sets
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	Mitutoyo Surface Roughness Tester Surftest SJ-411/412
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	Mitutoyo SURFTEST SJ-301 With Built-In printer
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	Phase II Portable Surface Roughness Tester Profilometer
	Phase II Surface Roughness Gauge