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Vertical Lathe CKD , Type SK 25B

Manufacturer: CKD Blansko
Country: Czech Republic
New in: 1973
Overhaul in: 1995
Condition: 100%
Machine specification - SK 25B Max. dia. Turned by lateral slide
2500
mm

Cross - rail slide
2600
mm

Max. gap between table surface and cross rail slide toolpost
1600
mm

Lateral slide toolpost
1275
mm

Vertical stroke of cross rail slide ram
1000
mm

Horizontal stroke of lateral slide ram
800
mm

Max. workpiece dia.
2800
mm

Table diameter
2400
mm

Max. workpiece weight
15000
kg

Max. table torque
6380
kpm

Max. cutting force per slide
7000
kpm

Steplessly variable table speeds:

speed range 1
1.18 - 32.5
r.p.m.

speed range 2
4.25 - 117
r.p.m.

Feed rates

number of feed rates
14

coarse feed range
0.125 - 11.2
mm/rev

fine feed range
0.0315 - 2.8
mm/rev

Rapid traversing speed
1900
mm/min

Thread cutting:

metric threads with pitches
I.56
mm

Whitworth threads
24 - 1/2
T.P.I

Module threads
0.54 - 60
Module

Spindle drive motor
80
kW

Dimensions:

length
10400
mm

width
5050
mm

height
6730
mm

Weight
48000
kg

PRICE: incl. disassembly and loading 125.000 USD

Machine aplication:

This machine is equally suitable for both and finish machining in both one - off and batch production. The steplessly variable table speed permits facing to be done at a constant cutting spedd, which saves time and produces a better finish. Apart from cylindrical surfaces and bores, faces and conical surfaces machined with an inclined ram, the machine can also cut all common threads and machine external and internal conical surfaces by composite feeds by means of change gears. Its potentialities are further extended by by a range of ancillaries. The vertically adjustable cross rail carries two slides with tilting rams, while the right - hand upricht spports a lateral slide. The righ - hand cross rail slide slide is equipped for thread cutting and cone turning by means of change gears, and can also be fitted with an electrical contact type copying attachment for the template - controlled copying of complex shapes. The table is seated on pressure oil bearing and driven by a variable speed d.c. motor fed from a Ward - Leonard set. A hydraulically controlled two - speed gearbox affords two steplessly variable speed ranges. the table starting and speeds are controlled bypush buttons on the control desk, which also bear the push buttons controlling the cross - rail and slide motions and the remote indicators. Of the slide and ram positions. For setting up, the table can be inched by means of push buttons on portable control boxes.

Main parameters: Maximum turning diameter 2500mm
Machine specifications: Maximum turning diameter in turning by side support 2500mm
Diameter of a table 2400mm
Maximum turning diameter in a case that the side support is below the table level 2600mm
Maximum weight of a workpiece 15000kg
Weight of the machine 43700kg

Accessories: Readout Heidenhain Positip 855
Tracing atachement