MRC-300M/400M/500M/500A Roundness and Cylindricity Measuring Instrument

Product Feature：

• Adopts high-precision aerostatic spindle as the reference, which is wear-free and maintains long-term accuracy.
• Uses the radius measurement method with workpiece rotation.
• Can measure roundness, cylindricity, straightness, runout, total runout, taper, diameter, concentricity, coaxiality, flatness, parallelism, perpendicularity, eccentricity and other parameters of various regular and irregular annular workpieces.
• Can analyze surface waviness (Wc, Wp, Wv, Wt, Wa, Wq), conduct spectrum analysis and wave height analysis.
• Can measure the cross-sectional ellipticity and longitudinal profile of piston outer circles (optional).
• Column stroke options include 400/500/700mm, with support for customization of larger strokes.
• Self-centering and leveling worktable, available in manual or automatic versions.
• The spindle can bear 30kg, and customization for larger loads is supported.
• Equipped with an air filter as standard.
• Four roundness evaluation methods: Minimum Zone Method, Least Squares Method, Minimum Circumscribed Circle Method, Maximum Inscribed Circle Method.
• Roundness filter ranges: 1-500, 1-150, 1-50, 1-15, 15-500.
• Waviness filter ranges: 3-16, 17-100.
• Data collection uses imported precision circular gratings with an accuracy of up to 0.0125μm, collecting 14,400 points per circle, ensuring high accuracy and stability.
• The measurement software is a CA system-based software running on Windows operating systems, supporting WinXP, Win7, Win10 and Win11.
• Partial arcs can also be measured and processed.
• Automatically identifies contour interruptions, and has the function of automatically or manually eliminating gaps and abnormal points.
• SPC statistical analysis: conducts statistical analysis on a large number of measurement data and provides graphical analysis reports.
• Can set process requirements to judge measurement parameters, improving the visibility of quality control.
• Supports single or multiple measurement data printing on the same page.
• Equipped with a Φ2mm ruby probe as standard; ruby probes of different specifications can be optionally configured.
• Complies with industry standards such as JJG 429, ISO 1101 and ISO 12180.

Product Application：

• Automobile manufacturing

Inspects core components such as engine crankshafts, camshafts, piston pins, and bearing inner/outer rings to ensure power transmission accuracy and assembly tightness.

• Aerospace

Verifies key components such as aircraft engine blade shafts, hydraulic system valve cores, and turbine shafts to meet precision requirements under extreme working conditions.

• Bearing/seal industry

Batch inspects bearing rolling elements, seal ring grooves and other components to ensure rotation accuracy and sealing performance.