Suface Roughness Testers


SR100

SR100 Portable Surface Roughness TesterThe SR100 portable surface roughness tester is powerful, accurate and easy to use. With the SR100, you can measure roughness almost anywhere. It is ideal for checking large components, structures, auditing batch production prior to shipment and production line process control.

Separates into Two Pieces

The innovative SR100 separates into two pieces to measure surface roughness. The bottom half of the SR100 contains the traverse mechanism and stylus pickup assembly which is placed on the surface to be measured. Its wide base ensures stability. The upper half includes a large LCD display, start button, mode and parameter buttons, comfortably hand-held for easy operation and clear viewing.

How it Works

A diamond stylus is drawn across the part. The motorised traverse mechanism is cam driven to ensure that the correct horizontal distance is travelled. Vertical movement of the stylus as it travels across peaks and valleys is detected by a piezo-electric pickup which converts the mechanical movement of the stylus into an electric signal. The electrical signal is digitised and sent to a microprocessor where the parameters are calculated using standardised algorithms.

SR100

  • Large LCD window.
  • Measures Ra at the touch of a button.
  • In addition to basic roughness parameters Ra and Rz, also measures advanced Rp, Rv and Rt parameters.
  • Five second cycle time.
  • Result saved until the next measurement is taken.
  • Switches between inch and metric mode without remeasuring.
  • Use right out of the box – little or no operator training required.
  • Automatic shut-off after five minutes of inactivity.
  • Configured with the most common industrial settings to ensure correlation between multiple operators (see specifications).
  • Simple and reliable calibration routine.
  • Uses standard off-the-shelf calculator type batteries with a minimum life of 5,000 measurements.
  • Includes SR100 two-piece assembly, calibration standard, batteries, operation guide and a carrying case.

SR200

The SR200 is a full featured, powerful and versatile surface roughness tester. It can be used either freestanding (on horizontal, vertical or even inverted surfaces) or bench mounted with fixturing for batch measurement and laboratory applications. It is battery powered for portability, with an AC adapter available.

Fast & Flexible

The SR200 can calculate as many as ten parameters (below) covering a comprehensive range of requirements. Its electronics provide very fast analysis – results are calculated and displayed even before the traverse unit returns. This fast processing, combined with intuitive menu buttons ensures measurement cycle productivity.

Large Display & Intuitive Operation

The SR200 has a large LCD to display a full menu and all measurement results – scroll through the menus with the two control buttons, make your selections, then press the MEASURE key. All selections are saved for future measurements with a built-in memory capacity that holds up to 100 readings. The SR200 includes an RS232 port so all measurement criteria and results can be exported.

Starter software package included with SR200

  • After receiving data from the SR200, Lite can immediately analyse, print, export as a .txt or .csv file, or save it as a document that can be reopened and used as a template for future measurements.
  • In Depth Analysis
  • Time saving templates
  • Presentation capabilities

SR200

  • Large screen display.
  • Unique stylus lift mechanism for total flexibility.
  • Many application specific parameter options.
  • Comprehensive selection optional accessories and pickups.
  • Long traverse length and extended pickup reach.
  • TalyProfile Lite Windows software included with upgrade options available.
  • Stores up to 100 readings.

Measurement Parameters*

Amplitude Parameters (measures vertical characteristics of surface deviations):

  • Ra (Arithmetic Mean Deviation)
  • Rsk (Skewness)
  • Rz (Average peak to valley height
  • Rt (Total height of profile)
  • Rp (Max profile peak height)
  • Rz1max (Max peak to valley height)

Spacing Parameters (measures horizontal characteristics of surface deviations):

  • RPc (Peak count)
  • RSm (Mean width of profile elements)

Hybrid Parameters (combinations of spacing and amplitude parameters):

  • Rmr (Material ratio)
  • Rda RDa (Arithmetic mean slope)

* and many others with included software.

Product NameCatalogue NumberPriceQtyOrder
SR100 Portable Surface Roughness TesterSR100£850.00(ex-VAT)add to basket
SR200 Surface Roughness TesterSR200£1795.00(ex-VAT)add to basket

Shopping Basket

cat no. qty price
your basket is empty


All prices are excluding vat.
Images are for illustration purposes only.