e-mail: amministrazione@sibimex.com
tel: 0039 02 9052513
CU400 / CU500


The headstock is manufactured of a single, well ribbed and proportioned casting of special stabilized cast iron.

The headstock unit design has been fulfilled so to achieve the maximum of rigidity and less vibration.

All the gears and spline shafts are made in high quality steel, hardened and ground.

The lubrication is automatic, realized by one gear pump and set of pipes.

The rotation and reverse running is obtained by a mechanical double multidisc clutch, while the spindle is stopped by mechanical ferodo brake.

The lathe is equipped as well with another electronic emergency brake for immediate stopping of the spindle in case of emergency, which is activated by the pedal or the red “Emergency“ stop buttons.


It is made of high resistance steel, casehardened, tempered and ground.

It is supported by precision, taper roller bearings SKF or FAG.

It is equipped with rear lock ring for the lash adjustment.


Heavy, large, strongly ribbed, cast iron bed with removable bridge, gives the machine great rigidity. The guideways are induction hardened and ground.

The guideways lubrication is automatic.


The norton box insure the execution of large range of automatic longitudinal and cross feeds and metric, whitworth, modular and diametral pitch threads without changing gears.

The lubrication of the norton box is automatic, realizes by a piston pump and pipes.


Slides and carriages are well proportioned and equipped with steel tapered gibs for the lash adjustment.


In the apron made of casting are placed all the controls for longitudinal and cross feed as well as the threading device.

It is supplied with a safety device which prevents the thread cutting and feed device acting simultaneously.

In the apron there is an automatic piston pump which lubricate the guideways of the lathe and the thread cutting nut.

On the apron is mounted also the electric motor which provides rapid longitudinal and cross travels of the carriage.


Strongly build with casehardened, tempered and ground quill, provided with extraction slot.


The electrical equipment consists of low voltage components, SCHNEIDER brand - Germany.

Technical Parameter Unit CU400 CU500
Height of centersmm210250
Swing over bedmm440500
Swing over cross slidemm230300
Swing in gapmm620670
Width of bedmm360
Distance between centers (DBC)mm1000 / 1500 / 2000
Spindle nose “CAM-LOCK”No.8
Spindle boremm62
Internal spindle taperMetric80
Number of spindle speeds 21
Spindle speeds rangerpm20 - 2000
Main motor powerkW7.5
Number of feeds 120
Longitudinal feed rangemm/rev0.04-12
Cross feed rangemm/rev0.02-6
Longitudinal rapid traverse speedmm/min3800
Cross rapid traverse speedmm/min1900
Number of threads 64
Metric thread rangemm0.5-120
Inch thread rangetpi60 - 1/4
Module thread rangeModule0.125 - 30
DP thread rangeDP240 - 1
Cross slide travelmm250
Top slide travelmm130
Quill diametermm70
Quill travelmm180
Quill taperMorse5
Length at DBC 2000 mmmm3435
Weight at DBC 2000 mmkg2560 2630

Standard Equipment

  • Quick change toolholder with 5 holders
  • Back plate for chuck
  • Coolant system with electric pump
  • Spindle splash guard with microswitch
  • Toolholder guard
  • Low voltage machine lamp
  • Rear metal splash guard
  • Spindle dead center with adapter sleeve
  • Instruction manual
  • “CE“ norms Certificate

Optional Equipment

  • Selfcentering 3-jaw chuck dia. 250 mm
  • Independent 4-jaw chuck:
    - dia. 400 mm (for CU400)
    - dia. 500 mm (for CU500)
  • Travelling steady:
    - 15-160 mm (for CU400)
    - 15-200 mm (for CU500)
  • Steady rest small size:
    - 15-150 mm (for CU400)
    - 15-160 mm (for CU500)
  • Steady rest big size I: 140-280 mm (only for CU500)
  • Taper turning attachment +/-10 deg
  • Drive plate with set of lathe dogs
  • Live center MT 5
  • Drill chuck with arbor
  • 3-axis digital readout system
  • 2-axis digital readout system
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