Forestry

Forestry & Timber

Forestry is one of New Zealand’s most important primary industries, contributing around $5 billion to our economy; We have been involved in a number of large & complex projects:

Nelson Pine LVL

We have carried out a number of process improvement projects on the LVL (Laminated Veneer Lumber) plant at Nelson Pine.

Nelson Pine: ‘A Saw’ Automation Upgrade

Replacement of a 15 year old Siemens S5 PLC with a Rockwell ControlLogix PLC and Intouch SCADA for Nelson Pine. The ‘A saw’ automatically cuts stacks of MDF (Medium Density Fibreboard) into various shape packs selected by the operator. The control system changeover was achieved in the planned two-week downtime with the new system delivering improved performance and reliability.

Nelson Pine: ‘B Saw’ Automation Upgrade

Replacement of a dual Allen Bradley PLC5 system with a Rockwell ControlLogix PLC, Intouch SCADA and Rockwell analogue servo controls for the existing drives. This upgrade was completed while the existing control system remained in place so that the saw was always available.

Nelson Pine: ‘C Saw’

We provided the control system for a new Anthon saw for Nelson Pine. The saw was manufactured in Germany with the control software developed by Streat Automation in New Zealand. The system consisted of a Rockwell ControlLogix PLC, Intouch SCADA with Rockwell PanelView Plus terminals providing manual control options. Motors were controlled by Sercos digital servo drives for precision movement and Powerflex drives on ControlNet for conveyor speed control. Position sensors were on DeviceNet as was the interface to the Kuka Industrial robots used for high speed stacking.