The Sentinel copper deposit is located west of Solwezi in the North Western Province of Zambia. It is part of the Trident project which comprises five prospecting licences totaling 2,300 square kilometres containing a number of attractive base metal prospects.
First Quantum Minerals of Perth, Australia is developing the project through its wholly owned subsidiary Kolumbila Minerals in Zambia.
The order is for two Konecranes SMTD Double Girder Goliath Cranes to operate outdoors in Zambia. The first is a 110t/55t crane (the hoists operate independently and in tandem) with 33metres lifting height which will operate with a 41.5m span. The other is a 30/5t SMTD with 32 metres lifting capability will operate with a 65m span (the girders are however 74m long to cater for leg support bracings). The 41.5m long girders will have 1 girder splice for transport purposes and the other crane will have 2 girder splice joints.
The cranes will be fitted with Konecranes developed components and accessories including: platforms on both girders, trolley platforms, anti-sway control, tandem lift function on the twin trolley crane, Remox radio control, Konecranes DynAHoist inverter stepless speed control on every hoist and Konecranes DynAC inverter variable speed control on the cross and long motions on all hoists, true vertical lift, load summation between hoists and Konecranes ControlPro codition monitoring system on each of the hoists to allow programmed maintenance to be properly scheduled to suit usage and to provide overload protection, increase safety, monitor combine load combinations and minimise unscheduled stoppages. The cross crane power and control wiring is delivered to the hoists with a cable chain system (rather than conventional festoon cables), and there is a cable drum for long travel power.
The cranes will each be painted to a C5 paint specification, suitable for an outdoor environment and the climatic conditions to be found in Zambia, giving many years of protection before 1st maintenance is due.
The cranes, costing £2.21m are to be delivered in January 2013.