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THG-15S CNC Internal Grinding Machines, Centerless Type

Two options are available to provide optimal grinding results: one using a shoe and a magnetic chuck and the other a workpiece support system with one shoe and two rollers. There are also two options for the internal surface: straight and radius form.

THG-15S (One shoe and two rollers type)
Centerless CNC internal grinding machine featuring a workpiece support system with one shoe and two rollers. Oscillation and plunge options are available.
THG-15S (Two shoes and a magnet chuck type)
Centerless CNC internal grinding machine featuring a workpiece support system with two shoes and a magnet. Oscillation and plunge options are available.

Main Specifications

THG-15S (One shoe and two rollers type) THG-15S (Two shoes and a magnet chuck type)
Grinding Method NC Oscillation or plunge Plunge NC Oscillation or plunge Plunge
Grindable Work O.D φmm 6 to 40 12 to 150
Grindable Work Width mm 5 to 25 5 to 40
Grindable Groove Radius mm - 0 to 6 - 0 to 6
  • THG-15S (One shoe and two rollers type) Application

    Spider cap inner & end faces grinding

    φ21×W22.3mm
    φ21 End face

    Roundness 2.78 μm
    Surface roughness bore 1.98 μmRz
    Surface roughness end face 2.78 μmRz
    Cycle time 16.2 sec
  • THG-15S (Two shoes and a magnet chuck type) Application

    Hub bearing outer ring raceway grinding

    φ47×W20.6mm
    R=4.1mm

    Roundness O.D.+0.38μm
    Raceway Form 0.9 μm
    Cycle time 11.9 sec