Project profile
BHP Port Kembla
Precision installation
Linear bearing rails at the Tin Mill.
Twin 30-metre rails were installed to a tolerance of 0.13mm for level and 0.25mm for straightness.
Tolerances were achieved with Construction Survey Pty Ltd using a precision level and theodolite. Relative distances between the rails were established using a purpose-built jig, dial gauges and a master level.
Once aligned, the linear bearings for the coil cars and walking beams were installed onto the rail system. Mechanical equipment was then bolted to the bearings and freedom of movement confirmed by moving the equipment manually along the rails.
The alignment was such that three-tonne coil carriers could be pushed by hand along the rails.
Installation capability
Measured, aligned and commissioned.
The project demonstrates the team's ability to coordinate survey, purpose-built installation tooling, mechanical fit-up and movement testing where tight tolerances are required.