The following pages list major projects in which AC-Tek was either the primary engineering consultant for the design and optimization of the conveyor systems or acquired site measurements on them to improve their current operating performance.

Sasol – Shondoni Overland**,** South Africa (commissioning fall 2015): Engineering design and optimization of a 20.5 km single flight overland conveyor with multiple horizontal curves. Transporting 2400 t/h of coal on a 1200 mm belt at 6.5 m/s.

**Longest single flight conveyor without a mid station drive in the world!**

Carajás Serra Sul S11D, Brazil (commissioning fall 2015): Engineering design and optimization of three downhill conveyors ranging from 1.6 km to 4.5 km. Transporting a massive 19,200 t/h of iron ore on a ST-8000 N/mm 2200 mm wide belt at 5.0 m/s. Longest conveyor has 7 x 1500 kW with brake sizes of 3 x 400 kN-m & 4 x 730 kN-m.

**Strongest steel cord belt rating of any conveyor in the world!**

Kaltim Prima Coal, Indonesia (2011): Design and engineering of a single overland conveyor that transports 4500 t/h of Coal on a 1100 mm wide, ST-2250 N/m.** **

**Overland conveyor is 12.6 km long and is running at 8.4 m/s.**

Twistdraai Colliery, South Africa (2011): Engineering design, optimization, commissioning, and field measurements of three overland conveyors transporting 2400 t/h of coal on a 1200 mm wide belt at 5.0 m/s.

**Longest conveyor is 12.4 km with both head & tail drives and has multiple horizontal curves.**

Obajana Cement, Nigeria (2008): 7.0 km overland conveyor transporting 2,400 t/h of Limestone at 5.0 m/s, with multiple horizontal curves. AC-Tek assisted in commissioning and preformed field measurements.

**World’s first fully elevated overland troughed belt conveyor using a triangular maintenance trolley. **

Kaltim Prima Coal**, **Indonesia (2014): Design and optimization of a 9.2 km overland conveyor with multiple horizontal curves.

**Transporting 4,500 t/h of Coal on a 1400 mm belt running at 7.3 m/s**.

Black Thunder Mine, Wyoming (2009): Design, commissioning and data acquisition on a 3.3 km overland conveyor coal conveyor transporting 7000 tph on a 72” belt (1830 mm) running at 1135 fpm (5.8 m/s).

**One of the largest coal mines in the world accounting for nearly 9% of US production.**

Aitik, Sweden (2011): Complete engineering design, optimization, and field measurements on eleven conveyors ranging from 50 m to 3,000 m. Located in the arctic circle operating an extreme environmental conditions with a minimum design temperature of -40 °C. Transporting 8,000 t/h of copper ore.

**Largest conveyor has a 2000 mm wide ST-6000 N/mm belt, and a total installed power of 9,200 kW.**

Enlow Fork, West Virginia USA (2012): Engineering design of six overland conveyors and two slope conveyors. The total system length is 10.4 km.

**The slope conveyor transports 10,000 tph of coal up 740 ft on an 84” wide ST-6000 N/mm belt. **

Gold Fields, Ghana (2009): Design of multiple in-plant conveyors including a 2,600 t/h stockpile feed and reclaim conveyor.

**Chutes designed using AC-Tek’s in house Newton DEM software.**

CSN – Porto de Sepetiba, Brazil (2011): Field measurements, design audit, and system upgrade analysis of seven overland conveyors (up to 2 km in length).

**Conveyors are transporting 17,600 t/h of iron ore on a 2000 mm wide ST-2800 N/mm belt. **

**Aditya Birla Group Dahej, India** (2012): Field measurements on multiple pipe conveyors. Transporting 1100 t/h of coal, ST-800 N/mm, 1600 mm belting.

Solomon Overland Conveyor Project, Australia (2013): Design and engineering of multiple overland conveyors transporting 7400 t/h to 4500 t/h of iron ore.

**A total of seven overland conveyors with combined system length of 15 km.**

VALE Projecto Executivo, Brazil (2012): Design and engineering of four port conveyors using 2200 mm wide ST-4500 N/mm belting. The system has 70 m belt turnovers installed to prevent spillage of material into the bay.

**Each conveyor is transporting a massive 20,000 t/h of iron ore over 1.8 km to a ship loading tripper.**

Baily Crabapple, USA (2010): Design and engineering of three overland conveyors. The total system length is 22,034 ft (6,700 m), transporting 4600 tph (4175 t/h) of coal. Total installed power of 9,000 hp (6700 kW).

Ngezi, Zambia (2011): Design and engineering of a 5.8 km overland with a 2100 m and 3500 m horizontal curve. Transporting 1400 t/h Platinum Ore, 900 mm belt, 4.0 m/s, ST-2000 N/mm.

**Antamina, Peru (2011): Field measurements and design upgrade of 3.2 km conveyor. The conveyor transports copper ore at 7,500 t/h on a1600 mm wide ST-6000 N/mm belt running at 4.0 m/s.**

Oyu Tolgoi, Mongolia (2012): Engineering design of 11 conveyors. Longest conveyor is 2.7 km long. Transporting 7200 t/h of copper ore on a 1800 mm wide ST-1800 N/m belt running at 3.8 m/s.

**Simplot, Utah (2014): Design, engineering, and field measurements on a 800 m overland conveyor with 850 m horizontal curve, 2000 t/h of phosphate ore.**

Boschmanspoort, South Africa (2011): Design and engineering of a 5.1 km overland conveyor transporting coal at 1400 t/h on a 1050 mm ST-2000 N/mm belt at 4.5 m/s.

Robinson Run, USA (2008): Dynamic Analysis & Field Measurements. Three overland conveyors (3.5, 3.3, and 1.7 km). Coal, 2500 t/h, 4.0 m/s, 1600 mm belt.