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No. 806, T. C. Jaina Tower 1, District Center, Janakpuri
New Delhi, Delhi-110058, India+(91)-11-25573986
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CNC And Manual Roundness Tester

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The CNC and manual roundness tester offered by us is loaded with newly developed offset type sensor holder which enables measurement without interference between the R-axis arm and the workpiece. Available in various specifications, the testing machine has measuring range of ±1000µm, ±200µm.

Salient Features:

  • New Offset type sensor holder: Machine has newly developed offset type sensor holder which enables measurement without interference between the R-axis arm and the workpiece.
  • Bar graph type centering/Tilting support function
  • Wide range support for infinite Magnification range: The ± 1000µm measurement range has a calculation resolution of 0.002µm, which is equilant to the conventional measurement magnification of 10000x, and can be used for almost all types of workpiece.
  • Up gradable from manual type to CNC type RONDCOM 54:


Measuring system : Manual.

Measuring range: Max. Measuring dia: 300mm, Left/Right feed(R-axis): 170mm. Up/Down (Z-axis): 300mm (High-column:500mm), Max.load diameter: 580mm, Max.measuring height: Outer diameter/ID: 300mm(High-column: /500mm).

Rotation accuracy: (JIS B 7451-1997) Radius direction: (0.02+4R/10000)µm
Straightness accuracy: Up/down direction Z-axis:0.12µm/100mm, 0.2µm/290mm, Radius accuracy: 0.8µm/150mm
Parallelism accuracy: Z-axis: 0.8µm/290mm (High-column: 1.8µm/400mm), Radius direction: 1µm/150mm

Indication accuracy : (2+L/170) µm L: Drive Distance
Rotation Speed: q-axis: 2-10/min
Auto stop Accuracy: Z-axis/R-axis: ± 5µm.
Rotation table:
Outer diameter: 220mm.
Load: 30kg,
Adjustment range centering/tilting: ±2mm/±1°
Detection range/Measuring force: 30-100mN,
Stylus shape: 1.6mm carbide ball,
Stylus length: 53mm
Filter type: Gaussian/2RC.

Cutoff values : Rotation direction: 15,50,150,500,1500 peaks/rotation, Rectilinear direction: 0.025,0.08,0.25,0.8,2.5,8 mm
Measuring range: ±1000µm, ±200µm
Roundness evaluation of profile error: MZC, LSC, MIC, MCC, NC, Multi.
Measuring items:
Rotation direction: Roundness, flatness, parallelism, concentricity, coaxiality, squareness, non-uniformity, run-out, Cylindricity, diameter deviation, diameter, circular parts
Rectilinear direction: Straightness, cylindricity. Squareness, parallelism, diameter deviation, axis center straightness.
Analysis processing function: Cantering / tilting support function, notch function, combination of roundness evaluation methods, Semi-automatic measuring function, real-time display, automatic magnification calibration, pass/fail judgment functions. nominal value collation, wide-range functions.

Special Functions: offset type sensor holder provided as standard.
Display (Color monitor): 15”LCD
Display items: Measuring condition, measuring parameters, printer output condition, profile drawing, comments, error message, etc,
Recording System: Color printer or laser printer.


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