Internal Grinding Machine IGU CNC

Omicron Igu 400 Cnc Rettificatrici Interni Robbi Group
  • High Precision Internal Grinding machine
  • Up to 4 grinding spindles on the rotating turret
  • Motor controlled by CNC and software interpolation 2-axis allow the adjustment of various rays, customized to the needs of the customer
  • Roller linear guides
  • Axis movement by means of high precision re-circulating ball screw
  • Granite base

Internal Grinding Machines

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Up to 4 grinding spindles on Rotating Turret

An important component of the Internal Grinding Machine IGU 400 is represented by the spindle turret that, in the maximum configuration, can be equipped with:

  • 4 spindles (one of which for external)
  • 4-spindles for internal grinding
  • tailstock to facilitate the grinding bore centering

The tower has an integrated swivel axis that runs automatically and allows you to use up to 4grinding spindles.
The rotation of the turret is automatic and the positioning is accurate and precise ( the turret do not rotates in the versions numer 1 and 2)

FLEXIBILE  X AND Z AXIS

Granite Base

√ Low thermal expansion
√ Excellent rigidity
√ Absorption of the vibrations

Roller Linear Guides

√ Maximum rigidity
√ Speed and acceleration over the very low speed
√ Elimination of stick slip.

Incremental linear encoder on both Axis

√ Small coefficients of variation.
√ Dampens vibrations optimally.
√ No vibration side
√ Maximun  positioning accuracy and repeatability
√ Excellent performance during the working in interpolation

High Precision Re-circulating ball screws

MAIN DATA IGU 400
Height of centres over table mm 325
Max rotating diameter mm 650
Max workpiece length mm 300
Max internal grinding depth mm 200
Max external grinding diameter mm 200
SPINDLE TURRET POSITIONING IGU 400
Max number of spindles n 4
Max turret diameter mm 120
Swiveling range degree -5° +275°
Repetition accuracy < 1″
Swiveling time for 180 deg sec < 10
Resolution degree 0.001
X AXIS
Max travel mm 450
Max speed mm / min 10.000
Resolution mm 0.0001
B AXIS
Swiveling Range gradi +30° -20°
Repetition accuracy <1″
Resolution gradi 0.001
Z AXIS
Max travel mm 650
Max speed mm / min 10.000
Resolution mm 0.0001
WORK HEAD IGU 400
Spindle speed rpm 1-800
Spindle taper ASA 6
MT 5
Spindle bore diameter mm 35,5
Driving power kW 1,6
Max cantilever weight (150 mm from workhead spindle nose) kg 50

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