used CNC Profile Gear Grinder GLEASON PFAUTER PE 1200 G

manufacturer: GLEASON PFAUTER
type: PE 1200 G
built: 2012
control: SINUMERIK 840 D
nominal workpiece diameter: 1.200 mm
EX location

Technical Equipment/Features

working area:
nominal workpiece diameter 1.200 mm
max.  radial travel (X-axis) 770 mm
max.  tangential travel (Y-axis) 300 mm
max. axial travel (Z-axis) 1.000 mm
lowest grinding wheel position above table 470 mm
max. profile depth 80 mm
grinding spindle swivel angel (A-axis) +/- 45 degrees
workpiece table:  
external diameter 800 mm
bore diameter x depth Ø 180 x 875 mm
T-slots 6 x 22H12 Pitch 30°
max. permitted load 10.000 kg
max. table speed 5 min-1
hydrostatic radial bearing
axial slide bearing
autom. hydraulic table balance
grinding spindle drive, grinding wheel:  
drive power 24 kW
speed range 1.200 - 6.000 min-1
grinding arbor-Ø 80 mm
profile grinding wheel max. dimension 400 x 80 x 127 mm
min./max. distance centre grinding spindle to table centre 100/870 mm
integrated automatic balancing device  
steady rest clamping diameter min./max. 110/250 mm
carriage travel 900 mm
position above table min./max. 800/1.700 mm
hydraulically movable, tailstock point  
dressing unit:  
feed 2.400 mm/min
speed 2.000-8.000 min-1
dressing wheel diameter max. 130 mm
dresser in two-roller design (Y/Z2)  
feeds and rapid traverse:
axis X 3 m/min
axis Y 5 m/min
axis Z 6 m/min
dimension, weight:
space required approx. l x w x h 8 x 7 x 5 m
machine weight approx. 29.000 kg
electrical connections:  
total connected load approx. 80 kVA
operating voltage 400 V
operating frequency 50 Hz
control voltage 24 V DC
gear cutting software:

•Dialog software for automatic generation of part programs for profile grinding of external gears
•Data protection (Backup/Restore)
•Data import/export
•Pitch jump compensation
•Warm up program
•Offline version
•Integrated grinding time calculation
•Automatic cut distribution
•Interlock-controlled grinding during single flank grinding
•Grinding of double helical gears
•Double helical centering
•Grinding of tooth segments
•Gear measurements for involute external toothed workpieces DIN 3961
The following measurements can be performed: Profile measurement, flank line measurement, Pitch and concentricity test, tooth width measurement, head and tip diameter measurement
•Measurement evaluation by area
•Printing of input data
•Printing of measurement results

Machine description and equipment:

-•Basic machine PE1200 G with control SIEMENS SINUMERIK 840 D
•NC dressing device with two dressing spindles and additional feed axis
•Software for fault diagnosis
•Network connection (Ethernet)
•Centering device with touch probe (external)
•Inkjet printer (colored)
•Oil mist extraction system
•External grinding head with 24kW and 6,000 rpm
•Pitch jump compensation
•Warm-up program
•Integrated grinding time calculation
•Automatic cutting division
•Interlock-controlled grinding during single flank grinding
•Grinding of tooth segments
•Special software for double helical gears
•Special software double helical centering
•Gear measurement
•Workpiece table with separate servo drive and 1-speed double worm gear
•Hardened and ground ball screws with preloaded nuts
•Full coverage of the working area
•Coolant and filtration system make Hoffmann, 30kW, Coolant cleaning with fine filter
(without using filter consumables)
•Oil recooling system with cooling circuits for the lubricant and coolant system and
for the grinding spindle drive
•Fixed tailstock column, hydraulic moveable counterholder
•Tailstock with steady rest and tailstock tip
•Electronical operating device
•Machine lamp
•In 2012, the machine was fully mechanically and geometrically overhauled
by GLEASON PFAUTER (scope of work available).
The electrical system including cables and measuring systems was completely renewed.
New dressing unit in GPM version.
All axes and spindle in digital drive technology SIMODRIVE 611 D.
CNC control SINUMERIK 840 D.