CNC Retrofit of Pomini 400-425 Roll Grinder

CNC Design complete electrical upgrade (CNC, drives, motors, HMI, defect scanning) for a large roll grinder.

Project: CNC Retrofit of Pomini 400-425 Roll Grinder

Customer: New Zealand Steel

End User: New Zealand Steel

Industry: Machine Tools

CNC Design retrofitting a large roll grinder

Retrofitting the Pomini roll grinder at the New Zealand Steel factory presented several challenges. Ensuring compatibility between new CNC control and the existing machinery is crucial. Precision and accuracy must be maintained or improved to meet quality standards. Minimizing downtime during the retrofit process is essential to avo​​id disruptions to production schedules. Integration of new control systems and automation technologies with existing infrastructure is also a key consideration.

Electrical equipment :

A comprehensive electrical retrofit was done by CNC Design to enhance its performance further, along with additional equipment and services. For example:

• New SINUMERIK ONE CNC system including SINUMERIK Safety Integrated

• New SINAMICS S120 drive system for all servo motors and spindle motors

• New SIMOTICS 1FT7 servomotors for all axes

• New SIMOTICS 1PH8 spindle motors grinding wheel and headstock drive

• New roll defect scanning system based on Eddy currents and ultrasound scanning technologies

• New main electrical cabinets with all new electrical switchgear

  
  

Software :

• CNC Design ROLLGrind software for grinding, measuring and database for roll data management

Reference resource : CNC Design Pty Ltd - Link

Download the case study: New Zealand Steel- retrofit 2024 (.pdf)