What is a Surface roughness meter?

A surface roughness tester is a device used to quantitatively measure the roughness or smoothness of an object's surface. It evaluates minute surface irregularities to confirm the quality of the finish and functional performance. Results are typically expressed using indicators such as Ra (Arithmetic Mean Roughness) and Rz (Ten-Point Mean Roughness). Surface roughness significantly impacts contact, friction, durability, adhesion, and coating performance of mechanical parts, making this instrument essential in manufacturing and quality control. It finds applications in industries like machining, metal processing, semiconductors, optics, and plastic molding.

Application of Surface roughness meter

✅Quality Control of Machined Metal Parts
Measures surface roughness of machined metal parts to evaluate friction and wear resistance between contact parts. For instance, it is used to verify smoothness in automotive engine components.
✅Inspection of Optical Lens Surfaces
Measures the roughness of optical lenses to detect surface defects that affect transmission and refraction performance. High-precision measurements are essential.
✅Surface Finish Verification for Plastic Moldings
Evaluates the roughness of molded plastic parts to check the smoothness and uniformity of the finish. It is commonly applied in the casings of electronic devices.
✅Surface Examination of Semiconductor Wafers
Measures minute surface defects on semiconductor wafers as part of high-precision manufacturing processes, ensuring optimal chip performance.

※Includes information on some trading companies