Spotlight Feature Articles Joy Global Surface Loading & Drilling April 16 | Page 2

SURFACE DRILLING AND LOADING

Extraction
excellence

The Atlas Copco teleremote
system allows the operator to
perform any drill function
remotely, to include auto
functions (operator assist and
autonomous). The system is
scalable for an operator to
control one to many drills

Paul Moore reviews new
machines and best practice
across hydraulic excavators,
rope shovels, wheel loaders
and surface drills

E

lectric drive in larger hydraulic excavators
continues to gain momentum. Hitachi
Construction Machinery – Americas
recently announced the introduction of five
mining electric drive shovels to the US and Latin
American markets – the EX1900E-6, EX2600E-6,
EX3600E-6, EX5600E-6 and EX8000E-6. The five
EX-6 electric drive mining shovels feature an
advanced zero-emission electric drive motor
designed to provide a cost-effective solution to
mining operations where low-cost electric power
is available.
“The combination of features on the new EX6 electric drive shovels will deliver value to our
customers by providing higher productivity and
lower total cost of ownership through efficiency
reliability and durability,” said Craig Lamarque,
Division Manager, Hitachi.
The Hitachi TFOA-KK electric motors are
powerful, tough and require less overhauling,
periodic inspection and service. The motor’s
voltage ranges from AC 6600V-6900V/60HZ and
results in a rated continuous output ranging
from 610 kW on the EX1900E-6 to 1,200 kW x 2
on the EX8000E-6.
“The design of the new EX-6 series electric
drive shovels results in simplified and improved
daily maintenance. The machines do not need
costly consumables such as engine oil, filters,
coolant or fan belts. Components related to an
The electric EX8000E-6 is now available in the
Americas

International Mining | APRIL 2016

engine are also eliminated, such as radiators, air
filters and mufflers. In addition, an autolubrication system eliminates cumbersome daily
lubrication and a fast-filling system enables
ground-level refills reducing time during regular
stops.”
The five shovels are equipped with Hitachi’s
exclusive level crowding and arc digging system
that provides high productivity while ensuring
efficiency.
Operators have access to Hitachi’s best-inclass operator station that features increased
visibility and comfort. Fluid-filled elastic mounts

reduce cab shocks and vibration by 20-30%
compared to rubber mounts, and the advanced
multi-display monitor provides operators with
key machine status information. “This provides
more accurate machine driving status
information which will, in turn, improve machine
performance and uptime.”
The shovels come standard equipped with a
remote machine monitoring system that
provides access to machines from a personal
computer in an office through Hitachi’s Global eService. Operating data are transmitted to a
Hitachi server for processing, and then to