Based on PALMARY's tradition of "Pursuing Quality Perfection", combined with human engineering design and peak performance concepts, each machine fully reflects PALMARY's unmatched design and technique.
The machine bed is manufactured from high-quality Meehanite cast iron, heat treated and stress relieved for outstanding stability and without deformaiton.


  • CNC controller

    The Mitsubishi M70 controller with a user-friendly control panel frame that allows operator to easily choose different grinding modes for arranging grinding program. FANUC controller is optional.
  • High grinding accuracy

    No Vibration and run-out caused by self-weights of the workpieces and chucks that may affect grinding accuracy.
  • Easy chuck

    Irregularly shaped workpieces are easy to chuck.
  • Auto. tool change system (ATC)

    Equipped with max. 6 no. grinding wheels for different diameter or accuracy requirement.


Internal grinding range (I.D. : length = 1 : 3) Ø70~700 mm
Max. external grinding diameter Ø700 mm
Z axis max. external grinding length 500 mm
Z axis max. internal grinding length Ø70~270 = 325 mm
Ø270~700 = 500 mm
Max. workpiece swivel Ø800 mm
Max. workpiece length 600 mm (including clamping fixture)
Max. workpiece load 850 kgs
X axis longitudinal traverse     1730 mm
Z axis vertical traverse 650 mm
Wheel spindle  
Z axis external grinding wheel spindle speed 2000~10000 r.p.m.
Z axis external grinding wheel diameter Ø100~200 mm
Z axis internal grinding wheel diameter Ø50~150 mm
Work spindle  
Work spindle speed 12~200 r.p.m.
Work table size (face plate) Ø800 mm
Screw nut size for T-slot M20
Work chuck size (optional) Ø450 mm (18")
X axis rapid traverse 0~10 M/min
X axis micro movement / each circle Ø0.1, Ø1.0, Ø10 mm
X axis micro movement / each graduation Ø0.001, Ø0.01, Ø0.1 mm
X axis min. setting unit Ø0.001 mm
Z axis rapid traverse 10 M/min
Z axis micro movement / each circle 0.1, 1.0, 10 mm
Z axis micro movement / each graduation 0.001, 0.01, 0.1 mm
Z axis min. setting unit 0.001 mm
X, Z axis guideway type Linear guideway
External griding wheel spindle motor 7.5 kW
Work spindle motor 7.5 kW
Coolant pump motor 2.6 kW
Diamond roller dressing device motor (opt.) 0.75 kW
Lubrication system motor 20 W
B axis (ATC) 1.5 kW
Tank capacity  
Hydraulic oil tank 24 L
Auto. electric lubricator tank 6 L
Oil cooler tank 15 L
Pneumatic tank 30 L
Coolant tank 500 L
Controller Mitsubishi / FANUC (opt.)
Machine dimensions  
L x W x H 3550 x 3865 x 3617 mm
Machine weight  
Net weight 14400 kg
The mentioned specifications & dimensions are subject to change without notice.


  • CNC controller (Mitsubishi M70 with PC-NC conversation software) x 1
  • Fully enclosed splash guard x 1
  • Grinding wheel x 4
  • Single point diamond dresser x 1
  • Hydraulic system x 1
  • Coolant system x 1
  • Electric system x 1
  • Full-close loop digital scale (for X & Z axes) x 2
  • Wheel spindle x 1
  • Wheel spindle oil cooler system x 1
  • ATC system (auto. tool change system, max. 6 no. wheels) x 1
  • Standard BBT.50 tool x 4
  • Ø800 mm face plate x 1
  • Tools and tool box x 1


  • BBT.50 tool (individual design)
  • Specical chuck (individual design)
  • Diamond roller dressing device
  • Magnetic coolant separator
  • Paper filter
  • Hydrocyclone coolant separator
  • Oil mist collector
  • Touch probe gauge
  • Current gap control