Shop onlineRoughness - Machined Ra
Roughness - Machined Ra are Machined Surfaces, achieved through machining the surface. Machined surfaces are measured with a surface roughness gauge. These consist of a stylus attached to an arm which moves over the surface to record and measure the roughness over a specified distance recording peak to valley heights. The measurement would be in Ra, Rz or similar.
The TR3110 Portable Roughness Tester (previously the TR110) is the latest instrument combining electronics and probe in an Integral Unit. It is widely used to test various metal and non-metal processing surfaces. It determines both roughness parameters Ra and Rz within a wide…
The Elcometer 147 Weld Gauge measures many aspects of welds both in metric and imperial units and includes: Angle of preparation 0 to 60º, Misalignment (high - low), Fillet weld throat size, Fillet weld length, Excess weld metal (capping size), Depth of undercut, Depth of…
The Elcometer 7062 MarSurf PS10 Surface Roughness Tester is a light weight and portable measuring solution for the range of surface roughness measurements required for compliance to International Standards.
The Elcometer 129 Surface Comparators are available in two models: Elcometer 129 Rubert - available in grit and shot versions, and Elcometer 129 Rugotest - shot and grit profiles on the same block. Roughness is displayed in both 'classes' and 'roughness averages' for easier…
The TIME TR3200 / TR3202 Surface Roughness Tester is a cost-effective roughness measuring instrument which supports a dozen of different parameters. It is small & light with high accuracy.
The New TIME TR3220 is an advanced stylus surface roughness measuring instrument with an integrated drive unit. It supports 45 kinds of roughness parameter measurements with high accuracy and a wide testing range to 400μm.
Compare the TIME TR portable surface roughness tester range at a glance. The TR series covers pocket-sized Ra and Rz testers through to integrated multi-parameter instruments. The headline specifications below cover roughness parameters, accuracy, repeatability and measuring…
Frequently asked questions
What is the Roughness - Machined Ra?
Roughness - Machined Ra are Machined Surfaces, achieved through machining the surface.
How are machined surfaces measured?
Machined surfaces are measured with a surface roughness gauge, using a stylus to record and measure roughness.
What measurement units are used for roughness?
Measurements of Surface Roughness are expressed in terms of Ra, Rz or Tp.
What does the Elcometer 147 Cambridge Weld Gauge measure?
It measures aspects of welds including angle of preparation, misalignment, fillet weld throat size, and more.
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