Description
Part No. SRG4000-050 surface roughness tester Precision Support Stand
Can be used with either 4000,4500 & 4600 series surface roughness testers
SRG4600-MP
SRG4000-050
Part No. SRG4600-100 Standard 5µm Stylus
For use on flat and slightly curved surfaces
SRG4600-100
Part No. SRG4500-200 Deep Groove Stylus
For use on deep grooves with min. width of 3mm and max depth of 10mm.
Must be used with support stand shown below
SRG4500-200
Part No. SRG4500-300 Small Hole Stylus
For use in small holes under 2mm diameter and max depth of 9mm
SRG4500-300
Part No. SRG4500-400 Curved Surface Stylus
For use on curved surface with a minimum curvature radius of 3mm.
Must be used with support stand shown below
SRG4500-400
Part No. SRG4500-500 2” Stylus Extension
Adds extra 2” reach for deeper applications
SRG4500-500
Part No. SRG4500-550 5” Stylus Extension
Adds extra 5” reach for deeper applications
SRG4500-550
Surface Roughness Tester Profilometer Measurement Guide
Surface roughness, for purposes of this forum, is the result of some machining process and its effect on the material surface in question.
Skid type surface roughness testers profilometers are common instruments used on the shop floor. A diamond stylus is traversed across the specimen and a piezoelectric pickup records all vertical movement. Peaks and valleys are recorded and converted into a known value of a given parameter.
Parameters differ in how they approach looking at peaks and valleys. The most popular parameter is “Ra”. Ra is commonly defined as the arithmetic average roughness. While the Ra parameter is easy and efficient, there are other parameters that can be more specific and useful depending on the application requirements. It is the parameters that enable us to define surface roughness.
Today, for the purpose of checking Ra values, the use of portable, hand held, surface roughness testers are not only economical, but are digital and easy to use. These surface roughness testers are a given necessity for any shop floor that receives work with Ra requirements.