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HEAP LEACH STACKING SYSTEM PROJECTS
Project
Client
Year(s)
Scope of Work
USA
Safford Leach
Copper Ore
Freeport-McMoRan
2013
Design, supply and erection of modifications to existing overland conveyor with a fixed tripper station, new 60"x1,200' long overland conveyor and new modular MCC, and reinstallation of salvaged 60"x6,700’ long overland conveyor and mobile tripper.
Mexico
Dolores
Gold / Silver Ore
Pan American Silver
2013
Upgrades to the stacking system supplied by TNT in 2007 to support new leach pad operations, including a new power distribution system, overland conveyor modifications, and a comprehensive stacking plan study for current and future operations.
USA
Morenci
Copper Ore
Freeport-McMoRan
2007,  2010, 2012, 2013
Design and supply of three 72”x250’ and three 54”x250’ “Super Portable” conveyors.
Niger
Somair-Arlit
Uranium Ore
AREVA
2012
Continued support of stacking operations begun in 2008 by designing and supplying three additional 800 mm Portable conveyors.
USA
Safford Leach
Copper Ore
Freeport-McMoRan
2011-2012
Design, supply and erection of new 60”x7,400’ long regenerative overland conveyor with mobile tripper, and 72”x1,700’ long extension to existing agglomeration transfer conveyor .
Chile
Lomas Bayas
Copper Ore
Xstrata
2011-2012
Design and supply of a 2,070’ overland conveyor with mobile tripper, as well as three new mobile conveyors:
42”x100’ Horizontal Feed Conveyor, 48”x140’ Horizontal Conveyor and 42”x120/140’ Radial Stacker.
Peru
Cerro Verde
Copper Ore
Freeport-McMoRan
2008, 2011-2012
Continued support of stacking operations by designing and supplying a total of seven new 2,600 t/h, 42”x125’ Portable conveyors, two new 42” overland conveyors (1,700 m and 550 m), and upgrades to all existing mobile conveyors.
Chile
Cerro Colorado
Copper Ore
Compania Minera Cerro Colorado
2011
Continued support of stacking operations begun in 2004 by designing and supplying a tripper and Horizontal Conveyor, and a new Radial Stacker.
Turkey
Kisladag
Gold Ore
Tüprag (Eldorado Gold)
2010
Upgrade to 2,400 t/h of the stacking system supplied by TNT in 2006, including design and supply of eight new portable conveyors, new Radial Stacker and Horizontal Conveyor, and new 1,960’ overland conveyor with new tripper. Upgraded existing overland conveying and tripper, and all existing mobile conveyors.
Mexico
Cobre del Mayo
Copper Ore
Frontera Copper
2010
Design and supply of 5 additional 36”x115’ Portable conveyors (1,100 t/h) to augment the TNT-supplied heap leach stacking system purchased from a closed mine.
Chile
Lomas Bayas
Copper Ore
Xstrata
2008-2009
Design and supply of 14 - 42” x 125’ Portable conveyors, 2,500 t/h and two 42” overland conveyors totaling over 6,000 ft.
Chile
El Abra
Copper Ore
Freeport-McMoRan
2007-08, 2010
Design, supply and erection of 8,550 t/h “Super Portable” stacking system, comprising 23 – 250 ft long Super Portables, horizontal feed conveyor, 275’ long horizontal conveyor and 220’ long
radial
stacker.
This
is
the
world's
largest
fixed
pad,
multiple-lift heap leach stacking system.
Argentina
Gualcamayo
Gold Ore
Yamana Gold Inc.
2007-08
Design and supply of three overland conveyors totaling 11,200 ft and 2,700 HP, 1,250 t/h.  Design and supply of 16 42” x 125’ portable conveyors.
Turkey
Copler
Gold Ore
Anatolia Minerals Development Ltd.
2007-09
Design and supply of 36” heap leach stacking system (1,000 tph) and overland conveyor
Niger
Somair-Arlit
Uranium Ore
AREVA
2007-08
Design and supply of 800 mm heap leach stacking system (226 tph) and overland tripper conveyor.
Australia
Lady Annie
Copper Ore
Copperco Ltd.
2006-07
Design and supply of 30” heap leach stacking system (400 tph) and agglomerator transfer conveyor
Mexico
Dolores
Gold / Silver Ore
Compania Minera Dolores (Minefinders Corp.)
2006-07
Design, supply and erection of 36” heap leach stacking system (1,053 mtph), and inplant crushing and conveying system, including primary, secondary, and tertiary crushing/screening, stockpile, reclaim, dust control, lime system and overland conveyors.
USA
Safford Leach
Copper Ore
Freeport-McMoRan (Phelps Dodge)
2005-07
Design, supply and erection of the world’s largest
mobile
heap
leach
stacking
system
(7,200
tph),
comprising 7400’ long regenerative overland conveyor, ten
72” x 250’ “Super Portable” conveyors, horizontal feed conveyor, 300’ long horizontal conveyor and 220’ long radial stacker. Surpassed as the world’s largest in 2010 by TNT’s system at El Abra.
Mexico
Ocampo
Copper Ore
Gammon Lake Resources
2005-06
Design and supply of 36” heap leach stacking system (800 tph), overland conveyors, and coarse ore stockpile stacking and reclaim conveyors.
USA
Lisbon Valley
Copper Ore
Lisbon Valley Mining Co. (Constellation Copper)
2005
Design and supply of 36” heap leach stacking system (1100 tph)
Chile
Mantos de la Luna
Gold Ore
Grace SA
2005
Design and supply of 30” heap leach stacking system (600 tph)
Turkey
Kisladag
Gold Ore
Tüprag (Eldorado Gold)
2005-06
Design and supply of 42” heap leach stacking system (1600 tph), and two overland conveyors totaling 8000’.  Mechanical design and supply of 13 inplant conveyors.
Peru
Cerro Verde
Copper Ore
Phelps Dodge
2004-05
Design and supply of 54” x 300’ horizontal conveyor and 54” x 220’ radial stacker.
Chile
Cerro Colorado
Copper Ore
Compania Minera Cerro Colorado
2004
Design and supply of 2400 tph 42” x 200’ Radial Stacker.
Laos
Phu Bia
Gold Ore
Metallurgical Design and Management (PTY) LTD
2004
Design and supply of 30” heap leach stacking system (400 tph)
Mexico
Alamo Dorado
Gold / Silver Ore
Corner Bay Silver
2002
Detailed feasibility study of developing a 13,000 tpd silver-gold heap leach property, including crushing and stacking facilities.
Saudi Arabia
Bulghah
Gold Ore
Ma'aden
2001-02
Design and supply of the entire materials handling system including 5 in-plant conveyors, 3 overland conveyors, 16 portable conveyors, feeder conveyor, horizontal conveyor and a radial stacker for an 18,000 tpd gold heap leach project.
Saudi Arabia
Al Hajar
Gold Ore
Ma’aden
2000-01
Layout, design and supply of the complete 300 tph crushing, conveying, agglomeration, and heap leach stacking systems, and associated electrical and sampling systems, at a greenfield gold mine.
Honduras
San Martin
Gold Ore
Glamis Gold
2000-01
Design, supply and installation of a complete 1,800 tph heap leach conveyor stacking system at a 12,000 tpd gold mine, comprising three semi-portable overland conveyors (total length nearly 4,000 ft), eight 125-ft portable conveyors, 98-ft feed conveyor, 140-ft track-mounted horizontal bridge, and 120/140-ft radial stacking unit.
Peru
Tintaya
Copper Ore
BHP Billiton
2000-01
Design and supply of a horizontal bridge conveyor and radial stacker for copper heap leach facilities, and of conveyors, belt feeder and related equipment at the crushing plant.
Uzbekistan
Muruntau
Gold Ore
Newmont Gold
2000
Onsite quality control and erection advice for the supply of new portable conveyors at a 3,000 tph heap leaching operation to process 220M tonnes of low-grade oxide ore from stockpiles to produce approximately 550,000 oz/yr of gold.
Mexico
Cananea
Copper Ore
Grupo Mexico
1999-00
Design, build and installation of the world's first mobile high-angle conveyor system, incorporating equipment from Continental Conveyor and Caterpillar, providing a second 2,500 tph, 30-m lift over the top of the first lift at the Quebalix I copper leach pad.
Burma
Letpadaung
Copper Ore
Ivanhoe Mines
1999
Complete 3,000 tph heap leach stacking study for a copper project, incorporating truck stacking for run-of -mine ore and the placement of crushed ore by an integrated conveyor and mobile stacking system.
Honduras
San Andres
Gold Ore
Greenstone Resources
1998-99
Preparation of a 3D site model to assist in the planning and design of a heavy-duty stacking system that would work well in the steeply sloping terrain at a 4.5M tpy gold heap leach project.  Delivery of a complete 1,320 tph stacking system including a fixed overland conveyor, 13 portable conveyors, a 140’ horizontal bridge and a 120/140’ radial stacking unit.  Design and fabrication of the equipment in cooperation with DIMISA.  Onsite installation assistance.
Peru
Cerro Verde
Copper Ore
Sociedad Minero Cerro Verde
1997-99
Provision of two portable conveyors for the initial expansion of the project, and subsequent supply of two additional conveyors (totaling 2,150 tph) for the next expansion phase, at this 105M lb/yr cathode copper production facility and heap leach stacking system with multiple lifts in a valley-fill configuration.  
Costa Rica
Rio Chiquito
Gold Ore
Laguna Gold
1998
Complete 250 tph stacking system, including four portable conveyors and a radial stacker, for this small gold heap leaching operation, and re-powered three additional portable conveyors onsite.  Design and supply of a crushing plant that included a dump hopper and reinforced wall system, primary and secondary crushing and screening, eight in-plant conveyors, magnet, scale, silo and MCC.  
Mexico
Cerro San Pedro
Gold Ore
Metallica Resources
1997
Assistance with the review and optimization of the feasibility study of the 1,200 tph crushers, overland conveyors and heap leach stacking system for a gold project.  Development of new layouts for the heap leach pads, cell and lift sequence studies, establishment of equipment requirements, and sizing of equipment and belts in the crushing and stacking areas.
USA
Florida Canyon
Gold / Silver Ore
POV Corporation
1997
Design, procurement, fabrication and assembly services for a 120’/140’ radial stacker and 140’ horizontal bridge conveyor and associated electrical systems, for use at a 40,000 tpd gold-silver heap leach operation.
WASTE STACKING SYSTEM PROJECTS
Project
Client
Year(s)
Scope of Work
Saudi Arabia
Ma’aden Phosphate Project
Phospho-Gypsum
Ma’aden Phosphate Company
2009-2012
Design and supply of
complete 54”–1,425 t/h
“Super
Portable”
mobile
stacking
system
and
overland
conveyors, consisting of 14 – 250 ft long Super Portables, 2 Horizontal Feed Conveyors, 2 Horizontal Conveyors, 2 Radial Stackers, 2 Mobile Trippers and 6 Overland Conveyors totaling 22,000 ft
IN-PLANT CRUSHING AND CONVEYING PROJECTS
Project
Client
Year(s)
Scope of Work
USA
Morenci
Freeport-McMoRan
2012-13
Design and supply of all mechanical, structural and instrumentation for
15 belt conveyors and modifications to three existing belt conveyors.  
Project includes approximately
6,000 tons of steel.
Australia
Solomon
Fortescue Metals Group
2011-13
Design, supply and erection of seven
iron ore
overland
belt
conveyors,
totaling
15 km
in length,
including
all mechanical, electrical, instrumentation, control, structural steel and concrete foundations.  Scope includes two 72”, 7400 t/h conveyors, three 54”, 5400 t/h conveyors and
two 54”, 4500 t/h conveyors.  
Total installed power = 17,900 kW.  
Total structural steel = 8,000 tonnes.
Turkey
Kisladag Gold
Eldorado Gold Corp.
2010
Design and supply of three new in-plant conveyors at the crushing plant.
USA
Mineral Park
Mercator Minerals
2007-08
Design and supply of 3,500 tph primary jaw crushing plant, discharge conveyor, stockpile feed conveyor, two SAG mill feed conveyors and four 60” reclaim belt feeders.  Scope included all mechanical, structural, electrical, instrumentation, controls and dust control systems; and design of all concrete foundations.
USA
Pinto Valley
BHP Billiton
2006-07
Design and supply of concentrate stockpile conveyor and filter press belt feeder.
Mexico
Dolores Gold
Minefinders Corp.
2006-07
Design, supply and erection of 36” heap leach stacking system (1,053 mtph), and inplant crushing and conveying system, including primary, secondary, and tertiary crushing/screening, stockpile, reclaim, dust control, lime system and overland conveyors.
USA
Wygen
Black Hills Generation
2006-07
Design, supply and erection of six new 30” conveyors for a coal fired power plant expansion project.
Mexico
Ocampo
Gammon Lake Resources
2005-06
Design and supply of 36” heap leach stacking system (800 tph), overland conveyors, and coarse ore stockpile stacking and reclaim conveyors.
USA
Kensington Gold
Coeur Alaska Inc.
2005-06
Design and supply of five belt conveyors, two belt feeders, primary crushing plant, secondary crushing plant, 1,300 ton fine ore bin, including all structural steel, mechanical equipment (except crushers and screen), electrical and instrumentation, and dust control system.
USA
Newmont Phoenix
Newmont Gold Corp.
2004-05
Design and supply of seven belt conveyors, SAG/ball mill ball handling system, and 300 tonnes of chute work and other fabricated plate work.
Turkey
Kisladag Gold
Eldorado Gold Corp.
2005-06
Design and supply of
complete
1,600 tph
heap
leach
stacking
system
including
overland
conveyors and fixed stacker.  Design and supply of mechanical components for 13 in-plant belt conveyors.
Saudi Arabia
Al Hajar Mine
Ma’aden
2000-01
Layout, design and supply of the complete 300 tph crushing, conveying, agglomeration, and heap leach stacking systems, and associated electrical and sampling systems, at a greenfield gold mine.
Peru
Tintaya Mine
BHP Billiton
2000-01
Design and supply of a horizontal bridge conveyor and radial stacker for copper heap leach facilities, and of conveyors, belt feeder and related equipment at the crushing plant.
Honduras
San Andres Mine
Greenstone Resources
1998-99
Preparation of a 3D site model to assist in planning and design of heavy-duty stacking system that would work well in the steeply sloping terrain at a 4.5M tpy gold heap leach project.  Delivery of a complete 1,320 tph stacking system including a fixed overland conveyor, 13 portable conveyors, a 140’ horizontal bridge and a 120/140’ radial stacking unit.  Design and fabrication of the equipment in cooperation with DIMISA.  Onsite installation assistance.
Honduras
San Andres Mine
Greenstone Resources
1999
Retrofit of a vibrating grizzly screen in place of the fixed grizzly at a gold plant, to improve the efficiency of the secondary crushing circuit, including structural analysis, design of additional structural members, support members, chutes and hoppers, and supply of fabricated steel.
Costa Rica
Rio Chiquito Mine
Laguna Gold
1998
Complete 250 tph stacking system, including four portable conveyors and a radial stacker, for this small gold heap leaching operation, and re-powered three additional portable conveyors onsite.  Design and supply of a crushing plant that included a dump hopper and reinforced wall system, primary and secondary crushing and screening, eight in-plant conveyors, magnet, scale, silo and MCC.
USA
CR Briggs Mine
Canyon Resources
1997-98
Provision of a variety of services at this gold-silver heap leach project, including working with the mine’s operators on a 650 tph crusher improvement program that included engineering modifications, operational controls and training, and maintenance program improvements.  This program led to the mining of a record 3.4M tons of ore in 1998, a 19% improvement over 1997, and increases in gold and silver production of 20% and 15%, respectively.
Saudi Arabia
Bulghah
Ma’aden
2001-02
Design and supply of the entire materials handling system including 5 in-plant conveyors, 3 overland conveyors, 16 portable conveyors, feeder conveyor, horizontal conveyor and a radial stacker for an 18,000 tpd gold heap leach project.
Honduras
San Martin
Glamis Gold
2000-01
Design, supply and installation of a complete 1,800 tph heap leach conveyor stacking system at a 12,000 tpd gold mine, comprising three semi-portable overland conveyors (total length nearly 4,000 ft), eight 125-ft portable conveyors, 98-ft feed conveyor, 140-ft track-mounted horizontal bridge, and 120/140-ft radial stacking unit.
Peru
Tintaya
BHP Billiton
2000-01
Supply of a custom-designed stacking system with rail-mounted tripper, 245' horizontal bridge conveyor and 140'/160' radial stacker for copper heap leach facilities, and of conveyors, belt feeder and related equipment at the crushing plant.
Uzbekistan
Muruntau
Newmont Gold
2000
Onsite quality control and erection advice for the supply of new portable conveyors at a 3,000 tph heap leaching operation to process 220M tonnes of low-grade oxide ore from stockpiles to produce approximately 550,000 oz/yr of gold.
Mexico
Cananea
Grupo Mexico
1999-2000
Design, build and installation of the world's first mobile high-angle conveyor system, incorporating equipment from Continental Conveyor and Caterpillar, providing a second 2,500 tph, 30-m lift over the top of the first lift at the Quebalix I copper leach pad.
Peru
Cerro Verde
Sociedad Minero Cerro Verde
1997-99
Provision of two portable conveyors for the initial expansion of the project, and subsequent supply of two additional conveyors (totaling 2,150 tph) for the next expansion phase, at this 105M lb/yr cathode copper production facility and heap leach stacking system with multiple lifts in a valley-fill configuration.
Costa Rica
Rio Chiquito
Laguna Gold
1998
Complete 250 tph stacking system, including four portable conveyors and a radial stacker, for this small gold heap leaching operation, and re-powered three additional portable conveyors onsite.  Design and supply of a crushing plant that included a dump hopper and reinforced wall system, primary and secondary crushing and screening, eight in-plant conveyors, magnet, scale, silo and MCC.