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GRU Series
CAPACITY GRU-2040 GRU-2060
Distance between centers 420 mm 620 mm
Max. swing over table Ø 200 mm
Max. load between centers 80 kg
Max. external grinding diameter Ø 190 mm
Roundness 0.8 μm
Machine positioning accuracy 1 μm
WHEEL SPINDLE
Swivel angle ± 30°
Wheel O.D. x width x I.D. Ø 405 x Max. 80 x Ø 127 mm
Wheel spindle travel 180 mm
Max. travel 180 mm
Min. setting unit 0.001 mm
Max. rapid traverse speed 8 m/min.
Grinding feed rate 0.0001 - 6,000 mm/min.
WORK TABLE
Swivel angle -3˚ ~ +12˚
Max. travel 420 mm 620 mm
Max. rapid traverse speed 10 m/min.
Min. setting unit 0.001 mm
Grinding feed rate 0.0001 - 8,000 mm/min.
WORK-PIECE SPINDLE
Spindle motor Servo Motor
Swivel angle +90˚ ~ -30˚
Center taper 20 m/min.
X / Y axes servo motor 1.5 kW
Z-axis servo motor 2.3 kW
TOOL MAGAZINE
Tool magazine capacity 14 T
Max. tool length 250 mm
Max. tool weight 3 Kg
Max. tool magazine load 25 Kg
Max. tool dia. / adj. pocket empty Ø 90 / 150 mm
ACCURACY
Positioning accuracy 0.005 / 300 mm
Repeatability ± 0.003 mm
GENERAL
Standard CNC controller SIEMENS 828D ( MITSUBISHI 70M-2BV Opt. )
Voltage requirement 15 kVA
Pneumatic pressure requirement 6 Kg/cm2
Coolant tank capacity 150 L
Machine weight 2,500 Kg
Dimensions ( L × W × H ) 1,580 x 2,245 x 2,260 mm

Specifications are subject to change without notice.