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    CNC Machine Tool Calibration Services

    Laser Calibration for Linear error (XL-80, XR-20)

    • We process all types of CNC Machines Linear Axis Calibration by using Renishaw XL-80 Laser Interferometer and Ballbar.
    • Very high precision Laser source accuracy 0.05ppm
    • We use Laser system to identify the linear & backlash errors in CNC Machines.
    • Identified errors are compensated in CNC controller
    • By using ballbar test in CNC machines we can find the following errors:
      • Servo mismatch
      • Squareness
      • Freeform
      • Straightness
      • Scaling mismatch
      • Backlash
      • Reversal spikes
      • Lateral play
    • Cyclic error
    • Scaling error
    • Cyclic pitch
    • Calculated feed rate
    • Centre offset
    • Positional tolerance
    • Best fit radius
    • Circularity

    What Is CNC Machine Tool Calibration?

    CNC machine tool calibration ensures your machining centres, lathes and grinding machines continue to produce parts within tolerance as they age and accumulate wear. Unique Measurement Service provides CNC machine tools laser calibration services that measure and correct linear axis positioning errors (X, Y, Z) using laser interferometer systems, generating compensation tables that restore machine accuracy.

    CNC Rotary Calibration (4th & 5th Axis)

    Our CNC rotary calibration services assess the accuracy of 4th and 5th axis rotary tables and trunnions — critical for 5-axis machining centres where rotary axis errors directly translate into part geometry errors.

    Why Regular Machine Tool Calibration Matters

    Regular CNC machine tool calibration reduces scrap and rework, extends machine life, and supports compliance with customer and ISO quality requirements. Unique Measurement Service delivers CNC machine tools laser calibration, CNC rotary calibration and ball bar testing services across India with NABL accredited (ISO/IEC 17025:2017) traceability and detailed before/after compensation reports.

    Frequently Asked Questions

    Q: How often should CNC machines be calibrated?

    A: Typically annually, or more frequently for high-precision or heavily used machines — we can recommend a schedule based on usage.

    Q: What is ball bar testing used for?

    A: It is a quick diagnostic test for circular interpolation accuracy, useful for detecting backlash, squareness and servo issues between full calibrations.

    Q: Do you calibrate 5-axis rotary tables?

    A: Yes, our CNC rotary calibration service covers 4th and 5th axis rotary tables and trunnions.

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