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Lathes

M 30 G Millturn
WFL Millturn
Inventory number: 191504

YOM:1999
Control system Siemens: Sinumerik 840 C
Turn table diameter: 520 mm
Turning lenght: 1050 mm
Sloping bed: YES
Y axis: YES
Travel Y-axis (lathe): 160 mm

LT 25-M
Okuma Corporation
Inventory number: 241101

YOM:1995
Control system OKUMA: OSP 7000L
Turn table diameter: 650 mm
Turning lenght: 1450 mm
Sloping bed: YES
Y axis:
Counterspindle: YES

SNG 1600x10000
NILES-SIMMONS Industrieanlagen GmbH
Inventory number: 231675

Control system Fanuc: 0i-TF
Turn table diameter: mm
Turning lenght: 10000 mm
Sloping bed: NO
Spindle bore: no mm
Turret head: NO

SPRY 40 CNC
TAJMAC-ZPS, a.s.
Inventory number: 161667

YOM:1991
Control system Mefi: - - -
Turn table diameter: 110 mm
Turning lenght: 300 mm
Sloping bed: NO
Spindle bore: 50 mm
Max. bar diameter: 40 mm

Takamaz XL-100
Takamatsu
Inventory number: 241307

YOM:2011
Control system Fanuc: 0i - TD
Turn table diameter: 120 mm
Turning lenght: 250 mm
Sloping bed: YES
Y axis: NO
Counterspindle: NO

SL-154SY
MORI SEIKI
Inventory number: 221725

YOM:2001
Max. length of workpiece: 348 mm
Swing over bed: 300 mm
Travel X-axis: 215 mm
Travel Y-axis: +40/-30 mm
Travel Z-axis: 490 mm
Axis C: 0,001 °

L 20 (L 320)
Citizen
Inventory number: 171899

YOM:1995
Turn table diameter: 20 mm
Turning lenght: 200 mm
Sloping bed:
Y axis: YES
Counterspindle: YES
Spindle bore: mm

EMCO MAT E300
EMCO
Inventory number: 211793

YOM:2010
Control system Fagor:
Turn table diameter: 550 mm
Turning lenght: 3000 mm
Sloping bed: NO
Spindle bore: 160 mm
Turret head: NO

LVT 300
Okuma Corporation
Inventory number: 231282

YOM:2002
Control system OKUMA: OSP-U100L
Turn table diameter: 280 mm
Turning lenght: 200 mm
Sloping bed: NO
Spindle bore: 62 mm
Turret head: YES

123456

Lathe – is a mechanical device that uses a chip machining to change a shape of the material or component by rotation or cutting into its final product (semi-finished product).  Using the lathe, it is possible to produce rotary parts, drill holes, cut external and internal threads.

The material (product) is clamped in the chuck. The lathe is produced in several dimensions, according to turntable diameter or turning length. Other equipment can be a revolver head, milling head, counter spindle, tailstock, chip conveyor (for extracting metal chips), cooling system (during turning a lot of heat is generated, which must be cooled. The cooling can be internal or external and according to its strength is expressed in bars).In case of CNC lathes. For numerically controlled lathes, if the manufacturer does not have its own system, it is possible to choose the system which is commonly used, for example: Fanuc, Siemens, Heidenhain or Fagor.  

Types of lathes:

  • Center type lathes
  • Facing lathes
  • Semi-automatic copying lathes
  • Vertical lathes (carousels)
  • Revolver type (poloautomaty, jednovřetenové, několikavřetenové)
  • CNC lathes
  • Special

The regular lathe consists of following parts: beds, spindle, support, tailstock spindle or sliding gearbox. 

Basic division of the inclination of the lathe bed: 

  • horizontal or sloping (inclination 45 degrees)
  • sliding or linear

Clamping part – it is usually formed by a chuck on one side and tailstock on the other, or a chuck and second clamping part by a counter spindle. 

Cutting part – formed by a cutting wedge attached to the longitudinal part - the Z axis.

The transverse part (perpendicular to the axis of the spindle) designated as the X-axis, or the automatic tool head, also usually located on the transverse feed on the machine. 

Other axes, used especially in case of CNC lathes:

  • axis C1 (indexed spindle position, 
  • axis C2 (indexed axis of the  counter spindle)
  • axis Y (Axis Y enables movement of tool perpendicular to axis Z and machining with live tools)
  • axis B (indexed support axis)

The machine can be erupted with a measuring tool probe (automatically or manually foldable).

According to the technological operation, turning is focused on processing of:

  • Cylindrical surfaces
  • Front surfaces
  • Conical surfaces
  • Threads

There are several hundreds manufacturers in the world, among the most popular in Czech republic are: TOS, MAZAK, DOOSAN, ŠKODA, OKUMA, GILDEMEISTER, HAAS, KOVOSVIT, GOODWAY, TAJMAC-ZPS.