Komatsu Mining says that a second P&H 2800XPC-AC rope shovel has been delivered to iron ore miner SNIM in Mauritania. These are the first Komatsu AC shovels in North Africa and Komatsu says they have received great feedback from the mine. SNIM is already a long term Komatsu customer having used three older P&H 2800XPA units since the 1990s. SNIM’s mining oeprations are located in the Tiris Zemour region, in the north of Mauritania.
Engineered for outstanding digging power and faster cycle times, the P&H 2800XPC electric mining shovel Komatsu says is intended to be a productive, reliable, low cost per tonne workhorse. “Featuring an AC electrical system designed to move materials quickly, the 2800XPC is built to give you years of dependable service even in tough environments.”
It incorporates the advanced Centurion electrical control system and a rugged ABB AC drive — powerful, productivity-focused systems featured in much larger machines like the P&H 4100XPC. It also features the latest in dipper technology and offers a low maintenance latching system, optimal toe penetration digging and the ability to pass match shovels with trucks. Built to handle hard materials with a focus on penetrating the bank, the P&H twin leg handle focuses energy and cutting force by preventing any energy-wasting twisting or rotating of the dipper.
Propel on demand provides rapid transfer to propel mode. Rapid transfers allow frequent positioning of the shovel to the bank resulting in faster cycle times and more efficient digging. Two rugged P&H planetary gear cases of proven design independently transmit torque to the drive sprockets, producing the tractive effort required for fast, efficient propel and positioning operations.
The electrical drive system is comprised of a multi drive platform, sharing a common DC bus between the IGBT Supply Unit (ISU) and the motor drive Inverter Units (INU). The fully regenerative ISU controls the power flow to and from the shovel, maintaining a unity power factor with extremely low harmonic content. The fully regenerative INU controls the power flow to and from the individual AC motors.
