For rotary parts formed by processes such as casting, injection molding, or stamping—where surface material has not been removed—surface roughness must be measured along the circumferential direction. However, traditional roughness contour measuring instrument limited by their linear motion trajectories and structural principles, struggle to achieve high-precision, continuous 360° contour data acquisition of workpieces. Furthermore, they are unable to simultaneously analyze roughness and waviness parameters in a single measurement. Measuring roughness and waviness across the entire circumferential contour has long been a blind spot for traditional instrument.
Leveraging its core motion control and microscopic topography measurement technologies, WALE Precision has introduced the circumferential roughness measuring instrument—systematically designed for the comprehensive, precise, and efficient evaluation of surface quality on rotary workpieces.

1. Addressing measurement limitations: WALE offers a comprehensive solution for cylindrical surfaces
1、Precision cylindrical rotation table for 360° seamless data acquisition
Equipped with a high-precision cylindrical rotation table that drives the workpiece to rotate smoothly, enabling continuous acquisition of contour coordinate points across the entire circumference—without gaps or omissions—to accurately reproduce the surface topography of the cylindrical surface.
2、X-axis radial movement fixture: flexible adaptation to different diameters
The uniquely designed X-axis radial movement fixture allows for rapid adjustment of the measurement position, easily accommodating diameter variations across different cross-sections of shaft, bore, and sleeve-type parts, enabling multi-purpose use and efficient switching.
3、Dedicated detector design effectively mitigates tangential friction interference
Utilizing high-rigidity I-series roughness contour linear detectors with a measurement force of just 0.3 g, the system effectively isolates tangential friction forces generated during workpiece rotation, ensuring pure signals and delivering accurate, reliable measurement results.
4、Single Measurement, Multi-Dimensional Analysis
When paired with the CAS roughness contour measurement and analysis system, a single scan simultaneously outputs R parameters (Ra, Rz, etc.), W parameters (Wa, Wt, etc.), P parameters, as well as contour dimensions and geometric tolerances, providing a comprehensive evaluation of workpiece surface quality.
5、Marble base for vibration isolation and stability
The monolithic marble base features high damping and low thermal deformation characteristics, effectively attenuating environmental vibration interference to ensure high precision and long-term stability even in workshop environments.
6、Multifunctional combination fixture for flexible and efficient clamping
Equipped with a precision base adjustment table, an angle adjustment table, and a sine-type vise, it supports rapid positioning and leveling of various irregularly shaped parts, meeting the measurement requirements of complex workpieces.


2. Summary
This instrument is particularly suitable for inspecting the surface quality of rotary parts formed through processes such as casting, injection molding, and stamping.
With its professional measurement capabilities, the WALE circumferential roughness measuring instrument helps users achieve precise control and efficient management of the surface quality of rotary parts produced through various complex forming processes. Whether you face challenges such as incomplete circumferential data, cumbersome diameter adaptation, or efficiency bottlenecks caused by the need to measure roughness and waviness in separate steps, the WALE circumferential roughness measuring instrument provides a reliable and efficient system-level measurement experience.
Dedicated to microscopic measurement, WALE helps you master the fine details of quality.
Precision Measurement Solution Provider
Understand customer and industry requirements,
provide custom tailored measurement solutions.
Email:ethan@walechina.com
Add:No.29 Shanglinyuan 3rd Road,Hi-tech Zone,Xi'an,China,710075
Tel:+86-158 2903 5092