Inventory no.2240003, machine including :
Fanuc 21i control
KEL-Balance grinding wheel balance
REN828 internal grinding spindle
Standard headstock
Standard tailstock with micro-adjustment
Pneumatic retreat of tailstock sleeve
Watering with paper band filter
Errors and omissions excepted, these data are given without obligation.
Manufacturing origin CH
Voltage 400V/50Hz/3ph
Netweight 3500 kg
Custom position 8460.2300
Dimensions 330x180x195 cm
TECHNICAL DATA
Control : Fanuc 21iTB
Centres height 175 mm
Max. grinding length 1000 mm
Max. workpiece diameter : Ø 349 mm
Intermediate part
Automatic indexing (UR), division 1°
Workpiece headstock
Swivel range -10° to +100
Spindle speed (continuous) 1 to 800 min-1
Internal taper attachment MT5
Reduction sleeve MT5/MT4
External short taper attachment : DIN 55026 / Gr.5
Permissible load for grinding on the fly 100 Nm (max. 80 kg.)
Guaranteed circularity for chucking work < 0.4 µm
Weight of workpiece between centres : 100 kg
Tailstock
Taper attachment MT4
Quill travel 48 mm
Option: micrometric displacement with correction (Ø) +/- 60 µm
Grinding wheel data
Diameter 305 30 ms-1
Diameter 406 40 ms-1
Diameter 457 45 ms-1
UR grinding head, power : 6.0 kW / 8.0 HP
internal grinding device REN 828
Lower table (Z axis)
Distance between centres 1000 mm
Max strokes : 1150 mm
Max. speed 12 m/min
Max. resolution : 0.1 µm
Upper table
Distance between centres 1000 mm 0 to +6° swivel range
Grinding carriage (X axis)
Maximum travel 350 mm
Max. speed 6 m/min
Max resolution 0.1 µm
Pneumatic
Connection min 6 bar
Air consumption approx. : 4 m3/h.
Coolant unit
Max connection pressure : 3 bar
Flow rate 80 L/min
Space required (1000 version) 3000 x 1700 mm
Drives
Grinding carriage (X axis) 4000 min-1 / 1.4 kW
UR grinding spindle with Ø 406 grinding wheel 3000 min-1 / 6.0 kW
Lower table (Z axis) 4000 min-1 / 1.4 kW
Workpiece spindle 3000 min-1 / 1.6 kW
Automatic indexing (UR machine) : 5000 min-1 / 0.75 kW
Lubrication pump 1500 min-1 / 50Hz
Hydraulic pump 1800 min-1 / 50Hz
Noise emission 70 dB
Operating temperature max 40°C
Max. ambient humidity 75%
errors and omissions excepted-data given without obligation