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Geibel & Hotz Automatic Surface Grinding Machine
"Compact" Column Type Precision Surface and Profile Grinder

Outstanding Features
A. X and Y guideways are Vee and flat. This prismatic system provides the maximum evenness and stability for axes movement as opposed to the standard twin-V guideway design.
B. The Automatic Vertical Feed System with Digital display can be set for plunge or surface grinding. The automatic infeed is infinitely variable. At any time adjustment of the infeed can be superimposed by means of a mechanical handwheel.
The roughing infeed is infinitely variable between 0.002 and 0.025 mm. The finish rate of infeed is variable to 0.001 mm per step. The number of spark-outs can be selected, and the lift-off travel is adjustable.
C. When grinding in an automatic cycle the position of the grinding surface is indicated digitally. The amount of wheel dressing can be compensated or the grinding dimension can be corrected during the grinding operation by mean of a push button (+/- 1 micrometer).
 

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D. The machine base is well ribbed to provide extreme rigidity and excellent dampening.
E. Entire machine is automatically lubricated by a centralized system.
F. In intermittent transverse feed, length of the infeed steps can be pre-selected or a continuous infeed rate may be used.
G. Table longitudinal stroke length is controlled by maintenance-free non-contact switches.
H. The precision grinding spindle employs precision angular contact ball bearings sealed for life, requiring no maintenance. This spindle is suitable for the entire range of grinding wheels from bonded ceramic type to diamond grinding wheels.
I. Self-contained low pressure hydraulic drive system.
J. Centralized control console mounted on articulated arm with all control functions and digital readout of vertical movement.

 
FS40
FS60
FS80
FS100

Maximum grinding range

15.75” x 7.87”
 400 x 200 mm

15.75” x 23 5/8”
400 x 600 mm

31.5”x 15.75”
800 x 400 mm

40’’x 19.7”
1000 x 500mm

Maximum table longitudinal movement

16.53”
420 mm

26”
660 mm

33.5”
850 mm

41.3”
1050mm

Maximum transverse movement

7.48”
190 mm

14.17”
360 mm

15.00”
400 mm

20’’
500mm

Maximum distance table to spindle center

16.34”
415 mm

20 5/8”
525 mm

20”
525 mm

24.6”
625 mm

Maximum distance, bottom of wheel to table

12”
305 mm

12”
305 mm

15”
375 mm

16.7’’
425mm

Table load

330 lbs.
150 kg.

880 lbs.
400 kg.

1,570 lbs.
700 kg.

3,090 lbs.
1380 kg
 
 
 
 
 

Table speed, hydraulic, variable

6.52 to 92 FPM
2 to 28 m/min

6.52 to 92 FPM
2 to 28 m/min

6.52 to 92 FPM
2 to 28 m/min

6.52 to 92 FPM
2 to 28 m/min

Transverse movement, rapid traverse

40 IPM
1m/min

40 IPM
1m/min

40 IPM
1m/min

40 IPM
1m/min

Transverse movement, automatic

0.118 to 0.787”
3 to 20 mm (intermittent or continuous by choice)

0.118 to 1.575”
3 to 40 mm (intermittent or continuous by choice)

0.118 to 1.575”
3 to 40 mm (intermittent or continuous by choice)

0.118 to 1.575”
3 to 60 (intermittent or continuous by choice)
 
 
 
 
 

Handwheel turn, transverse

0.048”
1.2 mm

0.048”
1.2 mm

0.048”
1.2 mm

0.048”
1.2 mm

Handwheel graduation, transverse

0.0004”
0.01 mm

0.0004”
0.01 mm

0.0004”
0.01 mm

0.0004”
0.01 mm
 
 
 
 
 

Vertical movement, rapid traverse

7.086 IPM
180 mm/min

7.086 IPM
180 mm/min

7.086 IPM
180 mm/min

7.086 IPM
180 mm/min
 
 

Mechanical vertical handwheel:
 

Handwheel turn, vertical

0.048”
1.2 mm

0.048”

1.2 mm

0.048”
1.2 mm

0.048”
1.2 mm

Handwheel graduation, vertical

0.00008”
0.002 mm

0.00008”
0.002 mm

0.0004”
0.01 mm

0.0004”
0.01 mm
 
 
 

Grinding wheel, standard

8.86 x 1 x 2”
225 x 25 x 51 mm

12” x 1” x 3”
300 x 25 x 76.2 mm

11.8” x 2” x 3”
300 x 50 x 76.2 mm

16’’x 4’’x 5’’
400x100x127mm

Grinding wheel, maximum

8.86 x 1.180 x 2”
225 x 30 x 51 mm

12” x 2” x 3”
225 x 50 x 51 mm
 
 
 
 
 

Web width, max.

1.180”
30 mm

1.180”
30 mm
 
 
 
 
 

Power input, grinding wheel motor

3 HP
2.2 kW

5 HP
3.7kW

5 HP
3.7 kW

12HP / 17 HP
9 kW / 12.75 kW

Power input, hydraulic pump

1 HP
0.75 kW

2 HP
1.5 kW

3 HP
2.2 kW

5.2HP
3.9kW

Power input, transverse movement

1/3 HP
0.25 kW

1/3 HP
0.25 kW

.75HP
0.54 kW

75HP
0.54 kW

Power input, vertical rapid traverse

1/3 HP
0.25 kW

1/3 HP
0.25 kW

.75HP
0.54kW

.75HP
0.54kW
 
 
     

Total connect load

6.75 HP
5.0 kW

10.75 HP
8 kW

11 HP
8 kW

20 HP
14.4 kW

Operating voltage

220/440 Volt, 3 Phase, 60 Hz

Spindle speed

2800 RPM

Vertical Traverse motor

AC-SERVO

AC-SERVO
 
 

Total weight of machine

2,310 lbs.
1,050 kg

4,620 lbs.
2,100 kg.

7,720 lbs.
3,400 kg.

9,350 lbs.
4,250 kg.

Operating sound level

70 dB(A) accord to EN 31201

Hydraulic oil volume

21 gallons
80 liters

21 gallons
80 liters
 
 

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