SZIM portal milling machine

07/07/2014
  • Electrical and mechanical overhaul with modifications

Electrical and mechanical overhaul with modifications

Customer industry:
Machine construction

Problem definition:
Outdated control, first Z-axis with defective swivel head, second Z-axis has maximum speed 2.000 rpm for a short time at a vertical spindle with horizontal spindle, defective tool changer on both Z-axes, oscillation in the Y-axis from 4 m rapid traverse, maximum traverse speed in X = 6 m.

SIRtec solution:

  • Disassembly of a Z-axis
  • Replacement of the control (Heidenhain iTNC 530) with new drives and engines
  • Replacement of the control cabinet, the hydraulic system and the lubrication
  • Modification of the Z-axis holder for the installation of a SIRtec orthogonal angle head with 2,5° serration in both swivel levels, with 2-stages-ZF-transmission (oil-cooled) and a water-cooled main spindle motor with 30 KW.
  • Installation of a tool changer in pick-up version with 40 tools
  • Modification of the ball screw from a pitch of 10 mm to 20 mm and crossing of the oscillating length
  • Overhaul of the X-axis gears with readjustment of the pretension

Customer benefit:

The machine is fully functional again to allow 5-sided machining, milling and drilling, switchable from external to internal cooling with frequency controlled water pressure, allocated to the respective tools.

before overhaul with modifications
Electrical and mechanical overhaul with modifications: after overhaul with modifications
Electrical and mechanical overhaul with modifications: Installation of a SIRtec orthogonal head 90/90° 2,5° automatic