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The cost-efficient control system upgrade


The PCU retrofit increases, for little expense, the IT security of older GROB machines featuring a PowerLine control system and ensures the availability of spare parts over the long term. Involving much lower costs and shorter machine downtimes, the PCU retrofit is the more convincing alternative to a complete control system replacement.

PCU retrofit at a glance:
checkboxFor all GROB machining centers, linear gantries and transfer lines with PowerLine control system
checkboxPCU (Power Control Unit)/MMC replaced by an industrial PC (IPC) running under Windows 10
checkboxSoftware modified to suit the new system
How a PCU retrofit benefits you
  • Significantly less expensive than an upgrade to a SolutionLine control system
  • Maximum IT security thanks to the Windows 10 operating system
  • Familiar HMI with improved performance
  • Permits the use of additional software
  • Machine downtime limited to one day
  • Option: Spare part availability of electrical components or preventive replacement of all critical electrical components
  • Can be combined with the remote machine diagnosis from GROB
  • Option: NCU retrofit (Numerical Control Unit) to increase computing power and productivity

Control and drive components for machines with PowerLine control system are generally no longer available as new commodities. Trading with used components is also becoming increasingly popular. We offer you two possible solutions. Both of them give you a refurbished component in exchange for the defective part. All components have to pass a thorough function test prior to delivery. You also get an 18-month warranty on the exchanged components.

Option 1: Spare part availability of electrical components

The spare part availability of electrical components option guarantees you a suitable, immediate replacement should any electrical component fail. A scope of critical electrical spare parts to suit your needs is agreed between you and GROB. We guarantee you availability of the spare parts for your selected period, ten years for example.




  • Assurance of spare part availability up until 2030, for example, even if discontinued by the manufacturer
  • Fixed and attractive exchange costs for the entire period
  • Spare part delivery within 24 hours*


*24 hours within Europe for orders

placed on weekdays before 17:00 hrs.

Option 2: Preventive replacement of all critical electrical components

We also offer the preventive replacement of all critical electrical components for all GROB machines.




  • Increased machine availability
  • Reduced machine downtimes
  • Attractive conditions

Any questions?

Contact us.


PCU retrofit consultation


+1 (419) 369-2611