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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  • CNC Keystone Piston Ring Grinding Machine (GKPR-CNC)

CNC Keystone Piston Ring Grinding Machine (GKPR-CNC)

Salient Features:

  • Max. Work-piece dia. : 200mm
  • Max OD of magnetic Chuck : 200 mm


  • Max. work-piece dia : 200 mm
  • Max. O.D.of Magnetic chuck : 200 mm
  • Wheel head table stroke max : 480 mm
  • Work head swivelling angle : +/-15deg
  • Work spindle speed : 200 rpm

Work piece accuracies:

Level of Development:

Machine developed, tested & supplied to customer

Status of Commercialization:

Ready for Technology Transfer

Major Raw materials Utilised:

  • Standard materials commonly used such as various categories of steels, rubber, ph. bronze, Ferrous & non ferrous etc
  • Standard materials commonly used such as Ferrous & non ferrous materials etc. Standard components like Motor, Electrical control elements, Bearings, O-Rings, Circlips, Fasteners, ballscrews, Poly V belts etc.,

Major Plant Equipment and Machines required:

  • Fabrication facility, Work handling facilities & Assembly toolings.
  • General purpose manufacturing workshop equipments like, Turning, Drilling, Boring, Milling, Grinding Machine, Standard pipe bending machine and other.

Techno economics:

GKPR-CNC is special purpose machine used for specific applications and does not require techno-economic study

Technology Package

Design & Drawings, Technical documents, Bill of Materials