TG Series helical rotor and thread grinding machines

PTG Holroyd TG Series helical rotor and thread grinding machines have long provided the industry benchmark for accuracy and efficient stock removal.

Extremely versatile, TG Series machines are equally well suited to prototyping as they are to batch and volume production.

Developed primarily for the finish-grinding of helical screw components, such as worm screws and rotors (after they have been milled to a rough or a semi-finished state), TG models offer production rates and extreme accuracies to suit precise manufacturing strategies.

Fully automated on-machine probing provides closed loop feedback of corrections to the wheel dresser, ensuring ‘perfect’ profile generation, without requiring high levels of operator skill.

Holroyd Profile Management System (HPMS)

Available as an option with several of our grinding technologies, HPMS consists of a suite of sub programs for the development of a wide range of helical profiles for screw rotors, vacuum screws and pump screws. HPMS can also be used to assist the control of a profile during the production stages and optimisation of operating meshing conditions.

Key Features

TG Series

  • High levels of accuracy and efficient stock removal
  • Developed for prototyping, batch and volume production
  • Accelerated and simplified set-up
  • Fully automated grinding wheel balancing system
  • Powerful, intuitive touch screen programming
  • Unique on-board Holroyd 3D CMM component scanning probe with fully automatic compensation feedback
  • High-power, high-speed grinding spindles
  • Optional hollow spindle for longer components
  • Advanced, in-process wheel dressing system
  • Large diameter grinding wheels for maximum wheel life
  • Optional Holroyd Profile Management System (HPMS)
  • Component diameters from 0 mm to 450 mm depending on component and profile
  • Maximum component weight 700 kg

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