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TWO CRANKSHAFT GRINDING M/C

A) RAVENSBURG#1800

1.4. TECHNICAL DATA
1.4.1. MAIN DIMENSION

Turning Diameter over bed cover 2300 mm  90.5”
Turning Diameter over carriage 1800 mm 70.87”
Centre Height over floor 1650 (2300) mm 65 (90.4)”
Centre Height over bedways 1520 mm 59.84”
Distance between centres 6000 mm 236”
Min. Distance between centers 1000 mm Approx. 39”
Admissible working piece weight
Unsuported (s – 300mm)
Between centers 4500 kg9900 lb
16000 kg 35200 lb
Weight of the machine 150000 kg 33000 lb
Height of beds 1450 mm 57”
Control Siemens SINUMERIK 680 T
Total Capacity required (switch cabinet) 400 KW 536 hp
for two chillers of main hydraullic units 2 x 19 KW 2  x 25.5 hp
For coolant unit 7 KW 9.4 hp
For deep hole drilling unit 7 KW 9.4 hp

1.4.2 Headstock (left and right) with hydrostatic spindle bearings

Main Spindle diameter at front bearing  500 mm 19.68”
Spindle head acc.DIN 55 026 Type A Size 28
4 Spindle Speed 1-32 min – 1 1-32 RPM
 2-69 min – 1 2-69 RPM
 5-160 min – 1 5-160 RPM
 11-350 (300) min – 1  11-350 (300) RPM
Max. drive capacity (D.C. Motor 118 KW / 1250 min – 1 158 hp
Max. torque at faceplate (step 1) 60,000 Nm 44300 ft.ibf
Faceplate speed limitation 300 min – 1 300 RPM
Diameter of face plate right 1 100 MM 43.3”
C – Axis with Spindle brake
Spindle speed 0,003 – 2.8 min – 1 0,003 – 2.8 RPM
Max. torque at faceplate 3200 Nm 7380 ft. ibf
Angular measuring system ROD 1750
Headstock Slide (Q1/Q2 Axes 
Headstock Traverse 2500 mm 98.4
Longitudnal measuring system  LB 326
Slide clamping  Hydraullic

1.4.3. Support with hydrostatic guideways

Carriage traverse (Z Axis) 760 MM Approx. 300”
Cross Slide traverse (X Axis) 1230 MM 48.4”
Feed Speed (X/Z axes) 1-8000 mm/min 0.04 – 315 IPM
 0,05 – 50 mm/U 0,002 – 2 IPR
Rapid Traverse 8000 mm / min 316 IPM
Thread Pitches (X/Z Axes) 0,01 – 200 MM / U -,0004 – 78.75 IPR
Feed Power (X axes) 55 KN 12360 ibf
Feed Power (Z axes) 60 KN 13500 ibf
Swivel feature round table (B-axIs) 260”
Max speed  2 min – 1
Longitudinal measuring system Z- Axis LB 326.01
Longitudinal measuring system X- Axis LS 704
Longitudinal measuring system W1- Axis LS 704 / LS 403
Longitudinal measuring system Y1- Axis LS 704

1.4.4. Sword turning unit (TURN 4a) with tool magazine
Height of sword 350 mm 13.78”
Width of sword (W1 Axis) 78 mm 3.07”
Displacement of sword (W1 Axis) 1-5000 MM/MIN 0.04 – 200 IPM
Feed Speed of sword (W1 Axis) 5000 mm/min 200 IPM
Rapid Traverse 5000 MM/MIN 200 IPM
Feed Power W1 Axis 54  Kn 1200 IBF
Number of tool holding positions for inside operation 2 automatical changing hydraulic
Tool Changer at pallet chain magazing 
Number of grippers 2 (for right and left side)
Tool holding fixtures KM 63
Number of tool places 30
Max. Diameter of tools 100 mm 4”
Max. length of tools 2000 mm 8”
Max. weight of tools 10 kg 22 lb

1.4.5 Boring Bar Holder (BORE 2)
Diameter of borng bar hold  152,4 mm 6”
Clamping Manually

1.4.6 Milling Unit (MILL 3) 
Tool Clamping Automatically
2 Tool Holding fixtures SOC. DIN 2078 ISO SK 50
Tool Clamping Force 24 KN 5400 ib
Diameter of milling spindle (front bearing) 160 mm 6.3”
2 milling spindle speed 7-720 min – 1 7-720 RPM
 20-2000 min – 1 20-2000 RPM
Drive Capacity (A.C. Motor) 30 KW / 1500 – 6500 min – 1 40.2 hp
Gear Shifting Hydraullic
Height adjustment vertical (Y1 Axis) 
Downward + 100 MM Apprx. + 4”
Upward - 350 mm - 13.76”
Feed speed (Y1 Axis) 1500 MM/MIN 0.04 – 200 IPM
Min distance to steady I and II (In Z Dir) 200 mm 7.8”
Min. Distance to steady III (In Z Direction) 330 MM 13”
Tool changer at pallet disc magazine
Number of gripper 2 (for both spindle side)
Tool holding fixture acc. DIN 2079 ISO SK 50
Number of tool places 12

1.4.7 Outside grrinding unit (GRIN 2b) with hydrodynamic bearing
Diameter of grinding spindle 320 mm Approx. 12.6”
Grinding wheel diameter 600-1270 mm 23.6 X 50”
Width of grinding wheel 76.2 mm 3”
Width of grinding wheel fixture 50,8 mm 2”
Bore of grinding wheel 304.8 mm 12”
Max. spindle speed 1120 50,8 min – 1 1120 RPM
3 Fold dressing unit with coolant 

1.4.8 Quill grinding unit (GRIN 1A)
Diameter of quill  200 mm 7.87”
Displacement of quill (W1 Axis) 500 MM Approx. 20”
Feed speed of quil (W1 Axis) 1-5 00 mm / min 0.04 200 IPM
Rapid Traverse 5000 mm / min 200 IPM
Feed Power W1 Axis 54 KN 12000 ib
Clamping of quill 9.84 = 2.59 hydraullic
Grinding wheel diameter 250 / 320 mm 10 / 12.6”
Width of grinding wheel 60 mm 2.36”
Bore of grinding wheel 76.2 / 127 mm 3/5”
Spindle Speed 3600 W1 min – 1
Drive Capacity (D.C. Motor) 20 KW / 200  27 hp

1.4.9 Quill turning unit (TURN 5a)
Diameter of quill 230 mm 9.055”
Displacement of quill (W1 Axis) 400 mm 15.75”
Feed Speed of quill (W 1 Axis) 1-5000 mm/min 0.04 – 200 IPM
Rapid Traverse 5000 mm/min 200 IPM
Feed Power W 1 Axis 54 KN 12000 ibf
Tool Holding fixture  KM 63
Number of tool holding position for inside operation 2 automatical changing
Clamping tool and quill Hydraullic
Tool changer at pallet Disc magazing
Number of grippers 2 (for right and left side)
Tool holding fixtures KM 63
Number of tool places 12
Max. Diameter of tools  100 mm 4”
Max. Length of tools 200 mm 8”
Max. Weight of tools 10 kgs 22 ib

1.4.10 Steady rest bottom part (Q8 Axis)
Displacement 6000 mm 236
Feed Speed 1-3000 mm/min 0.04-118 IPM

1.4.11 Steady rest station 
Displacement of steady transport car 4 600 mm 181
Feed speed 1-3000 mm/min 0.04 – 118 IPM
Number of steady places 3

1.4.12 3 Fold Steady rest upper part
Supporting diameter steady I 100-508 mm 4-20”
Supporting diameter steady II 380-915 mm 15-36”
Supporting diameter steady III 810-1 350 mm 32-53”
Weight Capacity 60KN 13 500 Ifb
Diameter supporting sleeves 140 mm 5.5”
Diameter of roller 125 mm 4.92”
Width of rollers 65 mm 2.56”

1.4.13 Pallet Station 
Displacement of shuttle wagon (Q3 Axis) 8 800 MM Aprox. 346”
Feed Speed of shuffle wagon (Q3 Axis) 1-22 000 MM /MIN 0.04 – 866 IPM
Rapid Traverse 22 000 mm/min 866 IPM
Number of pallet storage places 6
Feed speed of pallets (chain drive) 2200 mm/min 86.6 IPM

Thermal stabilisation of lubricant for head stock and milling unit
Recooling unit MO/L 24.0
Cooling capacity 27,9 kw 37.4 hp
Pump Capacity 160 l/min 42 gal/min

Chip Conveyor 
Type 300 S2
Width of belt 300 mm 11.8”
Drive Capacity 0.55 kw 0.75 hp

Cool Device 
Tank capacity 1 300 Litre 344 gal
Pump Capacity 100 l/min 26 gal/min
At 10 bar 145 psi

Paper wep filter PF 160 / 2000
With paper Type V 30 / 1020
Floating Capacity 180 l/min 48 gal / min

B) RAVENSBURG #2500

1.4  Technical Data 
1.4.1 Main Dimension 
Turning diameter over carriage 2500 mm 98.5”
Turning diameter over bedways 3000 mm 118”
Center height over floor 2410 mm 94.88”
Center height over flat ways 2000 mm 78.7”
Distance between centers 14000mm 551”
Admissible workpice weight 
Unsupported (s=300 mm) 7000 kg 15 500 lb
Between centers  80 000 kg 176 000 lb
Weight of the machine 150 000 kg 330 000 lb
Width of tailstock bed 1800 mm 70.8”
Width of carriage bed 1 600 mm 63”
Height of tail stock bed 1 000 mm 39.4”
Height of carriage bed 800 mm 31.5”
Control Siemens SINUMERIK 680 T
Operating Voltage 415 V/ 50 Hz
Total Capacity required (switch cabinet) 315 kw 422 hp

1.4.2 Head stock 
Main Spindle diameter at front bearing 560 mm 22”
Diameter of main spindle bore 150 mm 5.9”
Run out of main spindle 0,008 mm 0.0003”
Spindle head acc.DIN 55.026, Type A Size 2 B
Center point, meteric taper acc. To DIN 228 Size 120
Reduction sleeve, metric taper acc. To DIN 228  Size 160 / 120
4 Spindle speeds 1-18 min – 1 1-18 RPM
 2-40 min – 1 2-40 RPM
 4-90 min – 1 4-90 RPM
 5-200 min – 1 8-200 RPM
Ma.x. drive capacity (D.C. Motor) 200 KW / 910 min – 1 268 hp
Max. torque at faceplate 100 000 Nm 73 700 ft. lbf
Diameter of faceplate 100 000 Nm 73 700 ft lbf
Width of jaws 2000 mm 76.7”
Body height 380 mm 14.96”
Clamping diameter external 200 – 1700 mm 7.87 – 67”
Clamping force of power chucking spindles 400 KN 89 920 lbf
C-Axis with spindle brake
Spindle speed 0,0005 – 5 min – 1 0,005 – 5 rpm
Angular measuring system ROD 700  17 700 ft lbf

1.4.3 Support with hydrostatic guideways
Carriage traverse (Z1/2 axes) 19 130 mm 753”
Cross slide traverse (X1/2 Axes) 1480 mm 58.27”
Feed Speed (X/Z Axes) 1-5000 MM/MIN 0.04 – 200 ipm
 0,04 – 40 MM/U 0.002 – 2 IPR
Rapid Traverse 8000 mm/min 315 RPM
Feed Power (X/Z Axes) 0,01 – 2000 MM/u 0,0004 – 78.75 ipr
Feed power (X/Z Axes) 65 KN 14,600 ib
Swivel feature round table (B Axis) 260 0
Max. speed 2 min – 1
Longitudinal measuring system – Z Axis LB 326.01
Longitudinal measuring system – X Axis LS 706
Longitudinal measuring system – U Axis LS 406

1.4.4. Block Type tool post unit with TWO CNC swords
Height of swords 400 mm 15.75”
Width of swords 100 mm 3.94”
Length of swords 1 470 mm 57.87”
Distance between middle of swords 800 mm 31.5”
Displacement of swords (U1 – 4 axes) 0.4 – 2 000 mm/min 0.01 – 78.7 IPM
Feed Speed of sword (U Axis) 0.4 – 2 000 MM/MIN 0.01 – 78.7 IPM
Rapid Traverse 2000 mm/min 78. IPM
Feed Power U Axes 70 KN 15 736 Ibf
Number of tool holding positions of each sword 2
Clamping of swords Hydraullic

1.4.5 Boring Bar Holder 
Diameter of boring bar 300 mm 12”
Clamping length 1 100 mm 43.3”
Total length of boring bar 2500 mm 98.4”
Clamping  Manually
Tool Holding fixture Capto C8 or Capto 6
Displacement (manually) 4 x 250 mm 4 x 98.4”

1.4.6 Belt grinding unit 
Width of belt 200 mm 7.87”
Length of belt 3 500 mm 137.8”
Drive Capacity (A.C Motor) 50 kw/1500 min – 1 67 hp
Max. Speed 2675 min – 1 2675 RPM
Belt Speed 8-35 m/sec. 315.1378 in / sec.
Connecting grinding wheel diameter  400 / 250 mm 15.75 / 9.84

1.4.7 milling unit 
Tool Clamping Automatically
2 Tool holding fixtures acc.DIN 2079 ISO SK 50
Total clamping force 24 KN 5400 lbf
Diameter of milling spindle (front bearing) 160 MM 6.3”
4. Milling spindle speed 10-200 min – 1 10 – 200 RPM
 16-330 min – 1 16 – 330 RPM
 45-900 min – 1 45 – 900 RPM
 80 – 1 600 min – 1 80 – 1 600 RPM
Drive capacity (A.C. Motor) 42 kw / 250 – 500 min – 1 56 HP
Gear shifting Hydruallic
Height adjustment vertical (Y1/2 axes) 
Downward + 200 mm Approx. +8”
Upward - 240 mm -9.45”
Feed sped (Y1/2 Axes) 1-5 000 MM/MIN 0.04 – 200 IPM
Rapid Travers 5000 mm/min 200 IPM
Incl. Milling Head 
Tool holding fixture acc.DIN 2079 ISO SK 40
Max. torque at faceplate 1 000 Nm 737 ft.lbf
Transmission 1 : 1

1.4.8 Tail stock upper part with hydrostatic quilt bearing
Quill diameter 500 mm 19.6”
Quill displacement (motorically) 275 mm 10.8”
Speed of quil displacement 840/420 mm/min 33 / 16.5”
Quill locking Manually
Reception cone for faceplate acc.DIN 55.026 Size 28
Reception cone for center acc.DIN 5.026  Size 11
Tailstock live center with hydraulical thrust and pressure indication 
Diameter of faceplate 1 500 mm 59”
Width of jaws 150 mm 5.9”
Body Height 380 mm 14.96”
Clamping diameter external 200 – 1 250 mm 7.87 – 49”
Clamping diameteR internal 500 – 1 500 MM 20-59”
Clamping force of power chucking spindles 400 KN 89 920 lbf

1.4.9 Tailstock bottom part 
Automatical displacement on the bed  2000 mm/min 78.75
Clamping on the bed Hydraulically
Hydraulic retractable rack locking, secured via limit switches 

1.4.10 Steady Rest Bottom Part (two pieces)
For changeable steady rest and bearing blocks
Displacement W1 Axis 8000 mm 315”
Fee Speed 10 600 MM 417”
Feed power 1-9 00 0 mm/min 0.04 – 354 IPM

1.4.11 Steady Rest Upper Parts with hydraullic supporting sleeves
Supporting diameter steady 1 500 – 1000 mm 23.6 – 39.4”
Supporting diameter steady 2 1 000 – 1 800 MM  39.4 – 63”
Carry capacity 40 000 kg 88 200 ib
Roller diameter 250 mm 9.45”

1.4.12 Steady Rest Upper Part
Support diameter steady 3 100 0- 762 mm 4-30”
Carrying capacity 16 000 kg 88 200 ib
Roller diameter steady 3  140 mm 7.08”

1.4.13 Bearing Block (two pieces)
Bearing diameter 300 – 540 mm  11.8 – 21.26”
Manual displacement in cross direction  + 50 mm + 2”
Clamping on the bottom part Hydraulicaly
Clamping of bearing shell Hydraulicaly
Clamping of bearing shell 40 000 kg 88 200 ib

1.4.14 Roller Rest fixed on moveable bottom part
Number of supporting roller 2
Supporting diameter 1500 – 2500 mm 59 – 100”
Carrying capacity (adjustable) 1000 – 30 000 kg 2 200 – 66 000 lb
Roller diameter 200 mm 7.87”
Displacement W3 axis 0 600 mm 417”
Feed Speed  1- 9000 mm/min 0.04 – 354 ipm
Height adjustment Vertical (Y3 Axis) 170 mm 6.7”
Stroke Speed 500 mm/min 20 IPM

1.4.15 Pallet Stations (two pieces)
Number of pallet storage place (left and right) 2 x 3
Feed speed of pallets (chain drive) 2 20 mm / min 86.6 IPM
Displacement of left shuttle (W4 Axis) 5 200 mm 205”
Displacement of right shuttle (W5 Axis) 3 800 mm 150”
Feed speed of shuttle wagon (W4/5 Axis) 1 – 6 000 mm/min 0.04 – 236 IPM

Total measuring equipment A Renishaw
Max. measuring diameter for tools 2 400 mm 94.5”

Thermal stabilisation of lubricant for headstock  DK H – 80 V/SO
Cooling capacity 9,3 kw 12,5 hp
Pump Capacity 55 l/min 14 gal/min

Thermal stablisation of hydrostatic for tailstock quill  DK 150 – V/SO
Cooling capacity 18 Kw 24 HP
Pump Capacity 90 l/min 24 gal/min

Chip Conveyor type D 450
Width of belt 457 mm 23.9”
Belt Speed 3000/6000 mm/min 118 / 236 IPM
Ejection height Approx. 2 200 mm 83.6”
Drive Capacity 1,1 / 1.8 kw 1,5 / 2,4 hp

Coolant device 
Tank capacity 5 000 litre 1 320 gal
Pump capacity 100 l/min 25 gal/min
At 10 bar 145 psl
Drive Capacity 4 kw 5,4 hp
Filtron  battery (hydrcyclon 3 fold) F 60 – 3 CR
Pump Capacity 270 l/min 71 gal/min
Drive Capacity 2,2 kw 2 ,9 hp

Dedusting plant (for iron grinding dust) 
Suction air volume 10 000 m3/h
Stat. Pressure. 500 daPa
Drive Capacity 22 kw 29,5 hp
Filtering area 184 m2
With pressure differential controlled cleaning operation.

Ref.  6133

ZFWZ 5000X40 – 1957 - WMW (DE) - GEAR HOBBER

WMW (DE) - gear hobber –
ZFWZ 5000x40 - 1957
UNDER POWER
largest modul 40
largest diameter 5000 mm
- min/ max axis distance 500/2800 mm
- table diameter 4000 mm
- max gear widts 1500 mm
- tangential head
- internal cutting head + finger cutting head???
- change gears
- table supports (16 pcs)
- arbors

Ref.   2131

WHEEL HUB PRODUCTION LINE

WHEEL HUB PRODUCTION LINE
Technical description
Production output per shift: 550 pieces
Cycle time: 53 sec.
Production in one year: 600.000 - 700.000 pcs.
Production output per shift: 550 pieces, Cycle time 53 seconds.
Production in one year= 600.000 - 700.000 pc.
Steps of production:
1.) forged pc. put on chain manually .
2.) both sides pre turning on WEISSER + PITTLER
3.) Hardening
4.) Broaching
5.) Boring and Tapping
6.) Hard Turning
7.) Crack testing
8.) Press station for ring
9.) Manually packing
Simultaneously various types can run through this modern production line. The parts are being
selected automatically.
Largest outer diameter = 200mm
However, by making modified retrofit it can be extended to 300mm.
By purchasing additional equipment of 2 CNC Lathes, the capacity can be extended upto 6700
units per day.
The rough parts are being pre-turned, measured, induction-hardened, tested, broached, drilled,
turned-hard, checked for cracks, pressed/grouted, contolled, and thereafter packed.
This modern line is consisting of the following machines:
- SAS ZADAR, CNC-Wheel hub production drilling machine, y.o.m. 1995
- KARL KLINK, Vertikal inside broaching machine, y.o.m. 1996
- EMAG SALACH, CNC Vertical lathe VSC 200, y.o.m. 1996
- J.G.WEISSER, CNC- Turning center with loading unit, y.o.m. 1986
- KUKA, robot VK30, y.o.m. 1996
- PITTLER, CNC- Single spindle vertical lathe, y.o.m. 1999
- PITTLER, CNC- Double spindle vertical lathe, y.o.m. 1998
- ALFING KESSLER, Induction hardening unit, y.o.m. 1998
- BLUM-NOVOTEST, Double spindle crack testing machine, y.o.m. 1999
- BERNAIS, transport chain, y.o.m. 1996
- PROWIN, Press unit, y.o.m. 2000
- BERNAIS, Chain conveyer, y.o.m. 2000
- BLUM-NOVOTEST, Accuracy test run unit, y.o.m. 1996
- LM100, Laser measuring unit, y.o.m. 2001
- ROTZINGER, Transport chain, y.o.m. 2004

Ref.   61319