Commissioning Of A Caustic Dosing System

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The Caustic Dosing System is an add-on to our mixing and batching system which allows the operators to add a caustic liquid into 8 of their 10,000Kg mixers safely. It accurately measures the liquid by means of Endress & Hauser flowmeters.

Pigging System Upgrade

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When a new production line was installed at Robert Mc Bride in Middleton, we upgraded the existing product recovery system. This involved adding a new plc control panel and HMI panel at the line side.

The reasons for the upgrade were

  • To replace some failing obsolete plc hardware
  • Improve the look of the system
  • To give a better operator interface & diagnostics

Control system
Siemens S7-300 Plc, Siemens TP277 colour HMI

Our scope
Siemens S7 Plc software design, HMI Software design (WinCC Flexible), Onsite system commissioning

Vacuum Mixing System & Bulk Powder Handling

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The system consisted of the following

  • Two 3 Ton mixing vessels with mixers and anchors
  • Two 1.5 Ton powder batch bins
  • One 5 Ton pre melt vessel with mixers and temperature heating control and re-circulation
  • Vacuum powder transfer with vac hoppers
  • Bulk material transfer and quantity display
  • Filling off system


Control system
Siemens S7-300 Plc, 2 x ET200M Remote I/O stations, 4 x Siemens TP177 Monochrome HMIs, 8 x Allen Bradley Power Flex (Sensorless Vector Drives) from 5.5kW to 45kW

Our scope
Siemens S7 Plc software design, Onsite system commissioning