PT Freeport Indonesia, a mining company that operates one of the largest copper and gold mines in the world, has added three Grove cranes to its fleet. The RT765E-2 and two RT530E-2 rough-terrain cranes join the company’s operations at its Irian Jaya location.

Grove RTThe new units will replace two older Grove RT cranes that are being retired and PT Freeport has again turned to Manitowoc, having been impressed with the reliability and capability of its existing Grove units in the demanding Indonesian conditions.

“We once again selected the Grove RT series for this job because these cranes are durable and well-suited to the challenging wet weather conditions we have here in Irian Jaya,” said Jason Smith, who works in mobile crane maintenance at PT Freeport Indonesia.

“One of the most demanding aspects at this location is moving the cranes around the site in wet or muddy conditions, but the Grove RT series can cope well with this.”

The three new cranes will be applied primarily in underground expansion, where they will be used for steel erection work, and in supporting mill shutdown work or other tasks around the site.

“The RT cranes are the perfect size to operate in the underground environment and to support shutdown work around the mill area,” Jason Smith said. “Given the remote location of Irian Jaya, it’s also important for us that the cranes have an excellent lifespan — and these RT cranes can work for 10 to 15 years.”

The three new Grove cranes are replacing an RT855B and an RT528C, with both delivering more power than their predecessors and the capability to handle a more demanding workload. For faster set-up at the project site, both new units are equipped with a quick-reeve boom nose and hook block.

Manitowoc’s sales director for mobile and crawler cranes in Asia Teo Yew Boon said the quality reputation of Grove RT cranes is well deserved. “Grove RT cranes are justifiably recognised as some of the most reliable and durable machines in the world, and the two units that PT Freeport Indonesia is replacing are a testament to that.

“This latest generation of RT cranes from Grove continues the traditions of reliability and durability that customers expect, but with additional benefits. These include faster setup, greater capacity and better control. That means this latest generation of Grove RT cranes can deliver even better return on investment and value to owners.”

The RT765E-2 has a capacity of 60 tonnes and includes the Megaform boom found on Grove GMK all-terrain cranes, but with full-power capability. With four-wheel multi-mode steering and a Full Vision cab, mobility and operator confidence are optimised. These are two important issues for sites such as PT Freeport Indonesia.

The RT530E-2 is a 30 tonne capacity unit with a Tier III compliant 119 kW QSB 6.7L Cummins diesel engine. The load-sensing hydraulic system uses piston pumps for crane functions, while the four-section, full-power boom is constructed from high-strength steel to reduce weight while maximising structural capacities.

The crane also includes the unique CCS (Crane Control System) from Manitowoc, plus dual-axis electric joystick controllers, 3.8 tonne of counterweight pinned to the superstructure and standard full-length steel decking with anti-skid treatment.

PT Freeport Indonesia is a subsidiary of Freeport-McMoRan, one of the largest metals and mining companies in the world. The company has a global workforce of 34,500, with an estimated 12,000 employed in Indonesia.

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