Roundtest RA-120 Compact Roundness Measurement

Series 211
Features
The Roundtest RA-120 is a compact, affordable, and simple-to-use device
for measuring part geometry on the shop floor. It also provides such superb
data analysis capabilities as required with laboratory roundness measuring
instruments and has a ±1000μm wide range detector and precision turn table with
excellent rotation accuracy. The RA-120 is a dedicated processor based model which
controls all operations via the control panel incorporated in the main unit.

Specifications
ModelRA-120RA-120
Order No.211-543A211-544A
Tecnical DataTurntable
Rotational accuracy: (0.04+6H/10000)µm
H: Probing height (mm)
Rotating speed: 6rpm
Table top diameter: ø 1.96” (150mm)
Centering range:±.12” (3mm)
Leveling range: ±1°
Maximum probing diameter: ø 11” (280mm)
Maximum workpiece diameter: ø 17.3” (440mm)
Maximum workpiece weight: 55 lbs (25kg)
Vertical column (Z-axis)
Vertical travel: 11” (280mm)
Feeding:1.18” (30mm)/rev. (coarse) 0.039” (1mm)/rev. (fine)
Maximum probing height: 11” (280mm) from the turntable top
Maximum probing depth: 3.94” (100mm) (min. ID: 1.18”(30mm)
Horizontal arm (X-axis)
Horizontal travel: 65” (165mm) (Including a protrusion of 1” (25mm) the turntable rotation center)
Probe and stylus
Measuring range: ±1000μm
Measuring force: 7 to 10mN
Standard stylus: 12AAL021, carbide ball, ø1.6mm
Measuring direction: Two directional
Stylus angle adjustment: ±45° (with graduations)
Data analysis unit:
Data sampling points: 3,600 points/rotation
Data analysis items:
Roundness, Coaxiality, Concentricity, Flatness, Circular
runout (radial), Circular runout (axial), Squareness (against axis), Squareness (against plane), Thickness deviation,
Parallelism
Reference circles for roundness evaluation: LSC, MZC, MIC, MCC Recording device:
Built-in thermal line printer
Recording magnification: X5 to X200,000, Auto
Roughness component reduction:
Low pass filter, band pass filter
Filter type:
2CR-75%, 2CR-50%, 2CR-75% (phase corrected)
2CR-50% (phase corrected), Gaussian, filter OFF
Cutoff value;
15upr, 50upr, 150upr, 500upr, 15-150upr, 15-500upr
Turntable
Rotational accuracy: (0.04+6H/10000)µm
H: Probing height (mm)
Rotating speed: 6rpm
Table top diameter: ø 1.96” (150mm)
Centering range:±.12” (3mm)
Leveling range: ±1°
Maximum probing diameter: ø 11” (280mm)
Maximum workpiece diameter: ø 17.3” (440mm)
Maximum workpiece weight: 55 lbs (25kg)
Vertical column (Z-axis)
Vertical travel: 11” (280mm)
Feeding:1.18” (30mm)/rev. (coarse) 0.039” (1mm)/rev. (fine)
Maximum probing height: 11” (280mm) from the turntable top
Maximum probing depth: 3.94” (100mm) (min. ID: 1.18”(30mm)
Horizontal arm (X-axis)
Horizontal travel: 65” (165mm) (Including a protrusion of 1” (25mm) the turntable rotation center)
Probe and stylus
Measuring range: ±1000μm
Measuring force: 7 to 10mN
Standard stylus: 12AAL021, carbide ball, ø1.6mm
Measuring direction: Two directional
Stylus angle adjustment: ±45° (with graduations)
Data analysis unit:
Data sampling points: 3,600 points/rotation
Data analysis items:
Roundness, Coaxiality, Concentricity, Flatness, Circular
runout (radial), Circular runout (axial), Squareness (against axis), Squareness (against plane), Thickness deviation,
Parallelism
Reference circles for roundness evaluation: LSC, MZC, MIC, MCC Recording device:
Built-in thermal line printer
Recording magnification: X5 to X200,000, Auto
Roughness component reduction:
Low pass filter, band pass filter
Filter type:
2CR-75%, 2CR-50%, 2CR-75% (phase corrected)
2CR-50% (phase corrected), Gaussian, filter OFF
Cutoff value;
15upr, 50upr, 150upr, 500upr, 15-150upr, 15-500upr
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