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.

  • Home
  • Ultra-Precision Air Bearing Spindle-Nanospin AIM 80

Ultra-Precision Air Bearing Spindle-Nanospin AIM 80

Salient Features:

  • Motion Error in Nanometres
  • High Bearing Stiffness
  • High damping
  • High Dimensional stability
  • Near Zero Static Friction
  • Near Zero Thermal Distortion
  • No Harmonics
  • No Air Hammer Effect
  • Laminar Flow
  • Higher Working Speed Range
  • Integrated Motor
  • Water Cooled


  • Bearing type : Aerostatic radial and thrust
  • RPM : up to 3500 rpm
  • Motion Error ≤ 100 nm
  • Stiffness Radial : 80 N/μm Axial : 150 N/μm

Work piece accuracies:

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, copper alloy, etc.

Major Plant Equipment and Machines required:

Ultra-Precision micromachining Centre, Wire EDM, Turning and Milling Machine, Precision Grinding Machine, Ultra precision dimension, form and roundness testing equipments.

Techno economics:

Indigenous development of technology and having high potential in commercialization of ultra precision air bearing spindle.

Technology Package

  • One set of all assembly/  integration drawings for the prototype in the form of reproducible on tracing sheets.
  • One set of Mechanical component drawings for manufacturing.
  • One set of operation & user’s guide manual To provide consultancy in activities related to development


  • Single Point Diamond Turning (SPDT)
  • Ultra Precision Turning
  • Ultra Precision Milling & Micro Milling
  • Ultra Precision Grinding
  • Form Testers