Dredge Ship Discharge Upgrade

A major building products supplier needed to update a number of dredging ships discharge system. The existing DC drives were obsolete and the control algorithm did not give precise control resulting in long discharge times and unpredictable control of the discharge buckets.

An engineering study determined that the original DC motors were in good condition, however the DC drive converters, AC conveyor invertors, conveyor soft starts along with the Process PLC required replacing.


  • Project Management
  • Siemens PLC & HMI Hardware & Software Design
  • Replacement of the 4 DC Winch Drives
  • Replacement of the Conveyor Invertors and soft starts units
  • Re-cabling of the communications network
  • New fibre optic communications link between control room & bridge
  • Control Panel & Operator Stations Build & Test
  • Electrical & Network Installation
  • Customer Training
  • Commissioning
  • Maintenance Manuals
  • Customer Training
  • 24/7 Support Contract
  • Remote Access via 3G Network