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.