The stacker reclaimer at Glencore’s Clermont mine in Queensland had to be jacked apart from the portal frame. With such a long boom, it was crucial that the slew deck remained balanced throughout the operation.

An Enerpac EVO system with three CLRG 250t cylinders was used to safely handle the weight, according to G&S Engineering shutdown projects manager Steve Gordon.

“The EVO system was excellent to operate,” he said.

“The ability to set the load limits for individual jacking points, plus the ability to identify the centre of gravity was a huge advantage for us.”

The latest version of the Enerpac EVO system gave G&S load manoeuvring vertically and horizontally using one system to control the entire load, while providing a smoother overall operation.

“We used the minimum flow rate available which provided extremely smooth movements. There was no ‘bobbing type movement’ at the end of the boom, which ensured that the loads on the jacking points remained constant,” Gordon said.

The multifunctional EVO-Series can be used with multiple standard 700 bar (10,000psi) single- or double-acting cylinders and is offered with a 5HP or 10HP hydraulic power unit with 250 litre reservoir.

“Another advantage that this system provides is controlled movements within the parameters set onsite, giving the operator confidence that he is not outside any of the engineering loads or limits during the jacking operations,” Gordon said.

“The technical support from Enerpac was second to none. They helped us in certifying the CLGR 250t cylinders to take the load on the cylinder wall, enabling a horse shoe style ram packer to be used. This was invaluable in the time saved in obtaining an independent certification.”

“The EVO-Series System allows one device to control the entire lifting operation while providing status updates at every point of the process, without the need for manual monitoring. By digitally monitoring and controlling lifting operations, users enhance safety and eliminate costly downtime versus manual operations.”