- Details
- Category: Roundness Measuring Instrument

Roundness Introduction
Cylindricity measuring instrument is benchmark against precision rotary center and linear motion guide,the quantitative evaluation of the cylindricity is made by measuring the radius variation of actual contour of several cylindricity surface in different angle position to rotary center by displacement sensor in the guide. It is used to measure the error of contour shape of cylindricity workpiece (Roundness, cylindricity, planeness, straightness),position error ( concentricity, coaxiality, run-out and perpendicularity)
Measurement Capability:
Evaluation item: Cylindricity module: Radial full jump, concentricity, taper, radius Roundness module: Concentricity, radial single jump, wall thickness difference Straightness module: Parallelism, verticality Single section flatness module: Axial single jump, verticality and parallelism Multi-section flatness module: parallelism, Axial full jump, verticality Commutator module: Single contacts jump, Adjacent contacts jump, intermittent difference of contacts.
Technical specifications:
RMI-D560C | Item | Parameter |
---|---|---|
Rotary table | Bearing Type | Gas bearing |
Rotation accuracy | (0.025 + 6H / 10000) μm | |
Rotating speed | 4,6,8,10rpm | |
Adjust table diameter | 180mm | |
Table loading capacity | 25kg | |
Rotation diameter | 560mm | |
Max measure diameter | 280mm | |
Column (Z-axis) |
Column transverse travel | 320mm (electric) |
Max detection depth | 100mm (min inner diameter: 30mm) | |
Column straightness | 0.3μm / 100mm | |
horizontal arm (X-axis) |
Horizontal movement | 165mm (electric) |
Protrusion amount | 25mm | |
Detector | Acquisition device | Circle grating |
Circumference of sampling | 14400 points | |
Sensor type | Inductive Sensor | |
Sensor range | ±300μm | |
Sensor resolution | 0.001μm | |
X raster | RENISHAW grating scale 0.5um | |
Z raster | RENISHAW grating scale 0.5um |
*The above machine specifications can be customized and upgraded according to demand
- Details
- Category: Roundness Measuring Instrument

Roundness Introduction
Roundness measuring instrument is benchmark against precision rotary center, the quantitative evaluation of the cross-section roundness is made by measuring the radius varitation of actual contour of workpiece in different angle position to rotary center by sensor. It is used to measure the cross-section roundness and coaxiality of internal rotation and external rotation and face runout, etc.
Measurement Capability:
Evaluation item: Roundness, concentricity, coaxiality, parallelism, perpendicularity, flatness, Single radial runout, Single axial runout Analytical ability: Spectrum analysis, gap/burr automatically removed, waveform analysis Roundness evaluation (4 methods): Minimum zone method (MZC), least square (LSC), minimum circum circle (MCC) and maximum inscribed circle (MIC) Roundness filtering gear: 1-15upr,1-50upr,1-150upr,1-250upr,1-500upr,15-100upr,15-500upr,2-15upr Filtering expression: Gaussian (ISO standard) Magnification: input range 1-100000
Technical specifications:
RMI-D420 | Item | Parameter |
---|---|---|
Rotary table | Bearing Type | Gas bearing |
Rotation accuracy | (0.025 + 6H / 10000) μm | |
Rotating speed | 6rpm | |
Adjust table diameter | 180mm | |
Table loading capacity | 15kg | |
Rotation diameter | 420mm | |
Max measure diameter | 250mm | |
Column (Z-axis) |
Column transverse travel | 320mm (electric) |
Max detection depth | 100mm (min inner diameter: 30mm) | |
horizontal arm (X-axis) |
Horizontal movement | 150mm (manual) |
Protrusion amount | 25mm | |
Detector | Acquisition device | Circle grating sensor |
Circumference of sampling points | 4096 points | |
Sensor type | Inductive Sensor | |
Sensor range | ±300μm | |
Sensor resolution | 0.001μm |