PALMARY technical breakthroughs - the NC series internal grinding machines - are designed and engineered according to the highest standards. Great attention is paid to every detail of the entire machine. This fully reflects PALMARY's state-of-the-art manufacturing techniques. In addition, the NC series are equipped with a conversational operation interfacing control that makes your internal grinding easier and more accurate.


  • Convenient grinding operation

    All the grinding motions, "from rough grinding, dressing, finish grinding to spark out", are fully automatically operated. This provides high accuracy, convenient operation and greatly upgrades productivity. Also, it is excellent for mass production as well as small quantity, flexible workplace grinding.
  • The precision workhead spindle

    The workhead spindle runs on a high precision roller bearing featuring high accuracy, high rigidity and silent running. The workhead can be swiveled at clockwise 7° ~anticlockwise 8°, allowing for grinding tapered workpleces.
  • The slide table

    The slide reciprocating movement is driven by a hydraulic system, providing variable speed change and superior stability.
  • NC controlled auto. dressing with compensation

    In case a diamond or CBN grinding wheel is applied, a selection of no dressing compensation is available. For hard-to-grind parts, a multiple dressing compensation mode can be selected to ensure the desired grinding quality.


Internal grinding range (I.D. length = 1.3) Ø6~150 mm
Max. workpiece length 150 mm
Workhead cover swivelling dia. Ø280 mm
Work spindle  
Max. table traverse 400 mm
Max. table feeding speed Z axis 10 M/min (servo motor)
Spindle speed 0~550 r.p.m.
Max. X axis feed speed 50 mm/min
X axis min. travel unit 0.001 mm
Z axis min. travel unit 0.001 mm
Workhead swivel Clockwise 7° ~ anticlockwise 8°
Hydraulic oil tank 60 L
Workhead motor 1 HP, 4P
Hydraulic pump motor 2 HP, 4P
Grinding wheel motor 2 HP, 2P
Coolant pump motor 1/8 HP, 2P
Workhead slide feeding motor 400 W
Machine weight  
Net weight 2250 kg
The mentioned specifications & dimensions are subject to change without notice.


  • NC control x 1
  • Hydraulic system x 1
  • Coolant system x 1
  • Diamond dresser x 1
  • Splash guard x 1
  • Belt tension auto. adjustment x 1
  • Tools and tool box x 1
  • Grinding wheel spindle x 1 (alternative of 10000~30000 r.p.m.)


  • Hydraulic 3-jaw chuck
  • Adjustable 3-jaw scroll chuck
  • Magnetic coolant separator
  • Paper filter
  • Face grinding attachment
  • Wheelhead oil lubricator
  • Spare wheel spindle
  • Oil cooler
  • Soft jaw machining device
  • Built-in type wheel spindle 80000 r.p.m. with ER11 for dia. 6~12 mm (IG-150-2NC only)
  • Built-in type wheel spindle 110000 r.p.m. with ER11 for dia. 3~7 mm (IG-150-2NC only)