Thread Grinding Machine TGN45/125


Thread grinding machine achieving high accuracy and high rigidity

  • High-rigidity, high-accuracy thread grinding machine pursuing workability and operability with distance between centers of 1,250mm(49.2in).
  • Helix angle control by easy numerical entry.
  • Improvement in stability of pitch diameter of thread by locating a dresser in the back of work spindle.
  • Full-closed control on each axis achieving high-accuracy thread grinding.




Distance between centers 1,250 mm(49.2 in)
Thread length 1,200 mm(47.2 in)
Thread diameter ø200 mm(7.8 in)
Supportable workpiece weight 100 kg(220 lb)
Swivel angle of wheelhead ±30°
Grinding wheel dimension ø510 mm(20.0 in) × 32 mm(1.2 in) × ø228.6 mm(9.0 in)
Grinding spindle rotation speed 2,700min-1
Floor space (W×D) 4,200 mm(165.4 in) × 3,260 mm(128.4 in)


Simple and user-friendly operability and workability

Numerical-controlled swivel of wheelhead enables helix angle change by easy numerical entry. It provides high-accuracy thread grinding for various workpieces such as spindle, tool, thread gauge, ball screw, etc.

Full-closed control on each axis achieving high-accuracy thread grinding

Rotary encoder with 0.0001°control on work spindle, and optical scale feedback control on X & Z-axis are equipped as standard. By equipping built-in type grinding spindle as standard, machine vibration is minimized to achieve high-accuracy thread grinding even with small-diameter thread.

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