Centerless Grinder Rebuild

The Centerless Grinder Rebuild comprised a full machine refurbishment & CNC retrofit of this Cincinnati 2 0M Centerless Grinder.

The machine refurbishment included strip to component level, re-machining & scraping of all Slideways (Infeed & Dresser Slides), re-engineer Infeed Drive to provide Ballscrew & Servo Control, re-engineer Grinding Wheel Dresser to provide 2 axis Servo Control; refurbish Regulation Wheel Dresser, fully refurbish Spindles (Grinding & Regulation Wheel) including Hydrodynamic Bearing arrangement, complete new hydraulic system, complete new coolant system and new extraction system. In addition, a complete new Guarding Enclosure has been designed & fitted to provide PUWER compliance.

The CNC upgrade comprised fitting of a new Siemens S7 PLC, new Siemens AC Spindle Motor & Inverter Drive (Grinding Spindle), new Siemens Servo Motor Drive to the Regulation Spindle, new Siemens Digital Axis Servo Motors & Drives and a complete new Electrical Interface.


  • Cincinnati 2 0M Centerless Grinder
  • Siemens S7-1500 PLC
  • Grinding Spindle: 11Kw
  • Regulation Spindle (Servo Driven)
  • 2 Axis CNC Dresser (Grinding Spindle)
  • Gap & Crash Elimination
  • Enclosed & Interlocked Guarding
  • Coolant & Filtration System
  • Mist Extraction


Not only has the machine been mechanically refurbished to a very high specification, the production capabilities have also been further advanced by the CNC upgrade, which provides Recipe based Part Programming, Auto-compensation for Grinding Wheel Dress, Constant Surface Speed Control and Acoustic Gap Elimination.


  • Project Management
  • Mechanical Design (Inventor 3D)
  • Electrical Interface Design
  • PLC Software Design
  • Slideway Grinding to restore Machine Alignments
  • Ballscrew Refurbishment or Replacement
  • Spindle Refurbishment
  • Refurbishment of Gearboxes & Drive Train Systems
  • Overhaul or replacement of Hydraulic Systems
  • Re-assembly to OEM Specfications & Tolerances
  • Guarding Systems to PUWER Compliance
  • Electrical Panel Build
  • Commissioning
  • Factory Acceptance Testing
  • Site Re-installation
  • User & Maintenance Training
  • Full Documentation
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