Welcome To CMTI

The Central Manufacturing Technology Institute (CMTI) being a National Research and Development organization stands as a pioneering force, dedicated to shaping the manufacturing landscape through its unwavering focus on science, technology, and innovation. By driving the development of new technologies, catering to customer needs, providing valuable services, and fostering an environment of advanced technology intervention, CMTI solidifies its position as a catalyst for growth, progress, and excellence in the manufacturing industry.

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Ultra Precision Turning Machine

Salient Features:

  • High Stiff Hydrostatic Oil Bearing Slides
  • Ultra Precise Aerostatic Spindle
  • Natural Granite Bed with Vibration Isolation System and active leveling
  • Independent Slide configuration.
  • Open Architecture Motion Controller with Adaptive Control Technology.
  • Integrated chiller for Thermally stable slides and spindle.


  • Number of Axis : 3 Axis (X & Z, C-Axis)
  • Maximum Workpiece Size : Dia: 250 mm, length:150 mm
  • Spindle Running Accuracy : ≤ 25nm
  • Work Holding Spindle Max. Speed : 8,000 RPM
  • Positional accuracy : ≤ 0.3μm
  • Straightness of Slides : ≤ 0.3μm

Work piece accuracies:

75mm dia convex (ROC-250mm)              :           AL 6061 T6 alloy

Surface Roughness (Ra) , micrometer      :           < 2 nm

Form Accuracy(P-V)                                    :           < 0.2μm

Hardened Steel                                            :           60 HRC

Surface Roughness (Ra)                            :           <14 nm

Level of Development:


Status of Commercialization:

Ready for Technology Transfer

Major Raw materials Utilised:

  • Standard materials commonly used for engineering product development, such as various categories of steel alloys, aluminum alloy, natural granite, etc. Standard components include workhead spindle, linear motors and drives, linear scale, micrometer, Vibration isolation system, hydraulic power pack, hydraulic valves, diamond tools, water chillers, Hair dryer systems, structural frames other mechanical electrical elements.

Major Plant Equipment and Machines required:

  • Ultra-precision micro machining Center, Wire cut EDM, Precision Turning and Milling Machine Precision Grinding Machine, Laser interferometer, Ultra precision dimension, form and surfaceroughness equipments.

Techno economics:

  • In India, these technologies are in huge demand for strategic sectors and other non strategic Industrial sectors. However, all the SPDT machines are being imported and large amount of high value machined components are being outsourced from abroad. No machine tool builder in India is building these machines and there are very few industries fabricating the diamond turn components in our country.

Technology Package

  • One set of all assembly drawings for the prototype in the form of reproducible on tracing sheets.
  • One set of Mechanical component drawings.
  • One set of Electrical Drawings.
  • One set of test charts.
  • Consultancy in developmental activities related to machine building of Nanoshape T250.
  • Consultancy in process parameters and process developmental activities.
  • One set of achieved test results.