Mdm feb mar 2015 website

MINING MINING DEVELOPMENTS DEVELOPMENTS February/March 2015 Issue

MAGAZINE

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Cat Longwall Plow System Helps Set New Low-Seam Coal Production Record A coal mine located in southern West Virginia (USA) recently set another world record for daily low-seam coal production using a Cat® automated longwall plow system. In a 24-hour period on April 10 and 11, 2014 the Pinnacle Mine longwall produced 35,724 tons (32 411 tonnes) from the Virginia Pocahontas No. 3 Seam, in a seam height of just 56 inches (1.42 meters) along the 980-foot (298-meter) longwall face.

The Pinnacle Mine, located near the town of Pineville and owned by Cliffs Natural Resources Inc., an international mining and resource company, operates a Cat Gleithobel GH1600 Longwall Plow System. A previous record was set by this system at Pinnacle in August, 2012 when 32,430 tons (29,423 tonnes) were mined in a 24-hour period.

The new record was set by the same system, mining its second panel after a comprehensive rebuild was performed

by Carter Machinery, the Cat Dealer in that area. The rebuild encompassed a complete rebuild of the headgate and tailgate armored face conveyor (AFC) drive, the headgate and tailgate special AFC pans, the stageloader drives and return end, the complete crusher and all gearboxes for the plow, AFC and stageloader. Carter acquired the rights to

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sales and aftermarket support associated with the former Bucyrus mining products, both surface and underground, in 2013.

longwall system has 2 x 800/400

The Cat automated longwall plow system at Pinnacle is currently the only one operating in the United States. The

To set the new record the cutting depth was calibrated to cut 140

horsepower (600/300 kW) of installed power for the plow with two operating speeds of 395/197 feet per minute (2.0/1.0 meters “Supporting and rebuilding a longwall per second) and 2 x 800 plow system was a new experience for the Carter service team,” said Chris horsepower (600 kW) installed Curfman, President of Caterpillar power for the armored face Global Mining Sales and Support conveyor (AFC). Each roof Division. “However, given the record production results attained by the rebuilt support in the system has a total system at Pinnacle, it's obvious that they leg cylinder capacity of 715 tons are up to the challenge of supporting the (649 tonnes) with an operating underground product lines at the same height range of 35 to 77.5 inches high standards and quality level that (890 to 1,968 millimeters) and is they have been delivering for many equipped with its own PMC-R years on the traditional Cat surface electrohydraulic roof support mining products.” control. Other units from the Cat Tom Bluth, President of Caterpillar Programmable Mining Control Global Mining Products Division, said, family are used for overall face “Caterpillar congratulates the Pinnacle automation and visualization, as team for this great achievement.

Without their efforts and dedication this well as for drive control. The record would not have been possible. To longwall is equipped with a safely deliver that kind of output from PF4/1132 face conveyor, a such a thin seam is remarkable. We have PF4/1542 stageloader and a been privileged to work alongside their SB0815 V-belt crusher with a team to demonstrate the capabilities of 300-horsepower (225-kW) motor.

Cat longwall mining technology. ”

Published by: E.S.C Magazine T/A Projects Publishers 62, 2nd Avenue, Houghton, 2198 P.O. Box 92744, Norwood, 2117, Johannesburg, South Africa.

Tel: +27 11 346 5053 Fax: +27 86 601 9195 Email: info@miningdevelopmentsnews.com Website www.miningdevelopmentsnews.com The Publisher does not accept any responsibility for the accuracy or authenticity of the contributions contained in the Magazine and advertisements. Views expressed by the contributors are not necessarily those of the Publishers. © All rights reserved

millimeters at a speed of 395 feet per minute (2.0 meters per second) when traveling towards the headgate and 250 millimeters traveling at 197 feet per minute (1.0 meter per second) to the tailgate. The depths and speeds are customizable and were selected to optimize loading of the face conveyor.

Enhancing safety and production From a safety perspective, the Cat longwall plow system holds a significant advantage. For example, by using the Command for longwall capability set from Cat MineStar® System, the plow is operated remotely with no personnel required at the production face. As a result, there is no operator exposure to airborne dust, falling rocks or moving equipment, which is particularly important in such a limited work space.

In addition to enhancing safety, the Cat longwall plow can be a more productive choice, especially in thin seams. For example, the compact design of the plow system operating at Pinnacle allows it to work efficiently in a vertical space as low as 46 inches (1.17 meters). Other designs are available that enable the plow system to mine seams as low as 39 inches (1.0 meter). With its high-powered drives, high-speed plow, high advancing forces and electronically controlled cutting depths, the system can extract large volumes of coal quickly and

economically, regardless of seam hardness and geologic composition.

“Numerous production records have been set with Cat products, in this case demonstrating the superior production capabilities of our longwall plow systems in thinner seams. Our plow systems have been operating successfully for many years in mines around the world,” said Uli Paschedag, Global Product Manager of underground products for Caterpillar Global Mining. “After learning of this achievement, my hope is that even more mining companies with low-seam reserves will take a closer look at Cat automated longwall plow systems and will see our systems as efficient, profitable and sustainable for recovering those reserves.”

Press Inquiries Caterpillar Trade Press Media Representatives Americas Sharon Holling: Holling_Sharon_L@cat.com Johanna Kelly: Kelly_Johanna_L@cat.com Europe, Africa, Middle East Francine Shore: Shore_Francine_M@cat.com General Email: Cat_Trade_Press@cat.com

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Productivity in Mining – Attaining sustainable profitability beyond headcount reduction Johannesburg, 09 February 2015 – Productivity is a hot topic in South Africa with economists frequently advising that productivity has not grown as well as it should have in the last few years. One sector where productivity is always in the spotlight is the Mining industry.

According to the South African Reserve Bank (SARB), the nation's productivity has grown on average between 1970 - 2013 by a mere 1.02% a year. It measured growth in productivity of 1.92% per annum between 2010 and 2013. Despite the recent economic slowdown, productivity in the country has grown by an average of 2.8% a year during the 18 years spanning 1995 - 2013.

For many organisations, the one simple solution to balance costs against profits, is to cut-off the dead wood. This begs the question, is it possible to attain sustainable profit beyond headcount reduction? And if so, how do organisations strike the balance between productivity and maximum profitability?

According to Chamber of Mines chief executive Bheki Sibiya, labour costs were escalating to higher levels while productivity was not improving. "If the salary is growing at 10%, productivity should also grow at 10%." In an interview with Sowetan, Sibiya 4

who is unhappy that President Jacob Zuma has returned the Mineral and Petroleum Resources Development Act to parliament for further consultation - warned that the mining industry was a long-term industry and needed to operate in an environment that did not change too much.

One should ask though, is this a

fair statement in the South African environment which is constantly in flux? With challenges such a striking workforce, and load shedding impacting on the sustainability and long term profitability of the mines, it is not hard to explain why productivity would also be severely impacted.

Sustaining profits is about identifying and managing the economic drivers of costs (reduce) and revenue (increase) during the business cycle to achieve a desired profitability target. Reducing headcount (people resources) can lead to sustainable profit contribution if it is linked to an economic driver.

For example, if an economic

driver is truck productivity and you can implement an operational improvement to reduce cycle time which means less truck hours to mine the same quantities of ore then headcount can be reduced. If however, headcount reduction is done without changing the operational processes to improve productivity then quantities of ore mined and sold may drop and profits will be impacted.

Likewise, reducing support function headcount without a corresponding process change may increase risks to product quality, reserves replacement, safety, etc. In the medium to long term it is productivity improvement not headcount reduction that sustains profits and allows you to react to upturns in commodity demand.

Issued by: Beverley Bradley Ogilvy Public Relations beverley.bradley@ogilvypr.co.za 072 272 5166 On behalf of: BDO South Africa Genea Frade Communications Manager gfrade@bdo.co.za 082 538 1962

Keestrack - SA Crushing & Screening Equipment

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Drilling on South Africa's first deep-water well French multinational Total and its partner, Canadian Natural Resources International, on Thursday ofďŹ cially launched the drilling operation for South Africa's ďŹ rst deep-water well in the Outeniqua Basin, south of Mossel Bay in the Western Cape.

The multi-billion rand drilling operation gives fresh impetus to South Africa's nascent upstream oil and gas industry, at a time when the eyes of investors in the sector are shifting further down Africa's coastline.

While substantial gas discoveries have been made offshore of Tanzania and Mozambique in recent years, South African petrochemicals giant Sasol recently announced plans to explore for oil and gas along South Africa's east coast, and Australian company Sunbird Energy is pushing ahead with the development of a major gas project off South Africa's west coast.

"South Africa's deep offshore, in particular the Outeniqua Basin, is one of the few remaining under-explored offshore regions in Africa," Marc Blaizot, senior vice-president for exploration at Total, said in September last year, when his company completed the acquisition of a 50% stake in Block 11B/12B from Canadian Natural Resources.

The block is located in the Outeniqua Basin, around 175 kilometres off South Africa's southern coast, and covers an area of 19 000 square kilometres with water depths ranging from 200 to 1 800 metres.

According to news agency Bloomberg, the drilling programme is expected to take between three and four months at an estimated cost of more than R2billion. This will vary depending on the weather conditions - Total will have to deal both with great depth and with very

strong currents.

"The results of the upcoming exploration well will be decisive, especially in terms of operability of the area in such a harsh environment," Blaizot said last year. "As the Operator, we will leverage our recognized deep offshore expertise and experience in challenging waters such as the North Sea and the Barents Sea, to quickly appraise the potential of this acreage."

Mineral Resources Minister Ngoako Ramatlhodi, speaking at Thursday's launch, said South Africa's emerging upstream oil and gas industry had great potential to contribute to economic growth and job creation.

"Drilling in deep water is novel to South Africa and will therefore also bring with it avenues for skills transfer in the deepwater exploration space," Ramatlhodi added.

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120 t excavator introduced to SA mining industry The 120 t excavator is designed for opencast mining operations and is supplied to HPE Africa by Hyundai Heavy Industries (HHI), known for its heavy earthmoving equipment and shipbuilding.

The excavators are imported from Korea, with some being used in Russia, Australia and New Zealand. HPE Africa is the sole provider of this equipment to South Africa and the company has already geared itself to enter the heavyequipment industry that services the mining sector with the Hyundai R250LC-9s, R800LC-7 and now the mammoth R1200-9.

“We have also sold many 80 t excavators to South African operations,” says Sauls. He explains that the R1200-9 includes features such as a 6.7 m3 bucket and a six- cylinder Cummins QSK23-C diesel engine that is built for power, reliability, efficiency and reduced emissions. The engine is electronically controlled to ensure an optimum fuel-toair ratio and clean, efficient combustion.

Service is made convenient with concentrated engine filters, a remote type fuel prefilter and a fuel-cut valve, while an automatic greasing system enables easy maintenance.

Service intervals are extended and

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downtime is reduced by extended-life hydraulic filters, long-life hydraulic oil, efficient cooling systems and integrated preheating systems.

Equipped with a 7-inch colour liquidcrystal display screen and toggle switch, the operator can select personal machine preferences. As part of the offering, the new cluster comes with a power and work mode selection, self-diagnostics, maintenance checklists, start-up machine security and video functions.

An optional rear-view camera is also available.

The R1200-9 excavators are also equipped with Hyundai Construction Equipment’s Hi-Mate remote management system that pro- vides operators and dealers with continuous access to service and diagnostic information on the machine from any computer with Internet access. However, activation of the Hi-Mate system is optional.

“Users can pinpoint the excavator’s exact location using digital mapping and set machine work boundaries to reduce the need for multiple service calls. HiMate also saves time and money for the owner and dealer by promoting preventive maintenance and reducing machine downtime,” Sauls says.

For added production, controllability and ver- satility, Hyundai improved their current hydrau- lic systems. Fuel consumption has decreased as a result of improved pump-flow control that reduces flow when controls are not being used.

Spool valves in the control valves have also been improved to provide precise fuel flow to perform each function with less effort.

“Improved hydraulic valves, precisiondesigned variable volume piston pumps, fine-touch pilot controls and enhanced travel functions are also included in the R1200-9 excavator,” notes Sauls.

Further, a computer-aided power optimisation (CAPO) system allows the operator to set preferences for boom or swing priority, power mode selection and optional work tools.

The automatic boom or swing priority determines the ideal hydraulic flow balance for the boom and swing motions of the machine. The CAPO system monitors the hydraulic system and adjusts settings to increase performance and productivity.

-9 excavator in a strong position as it enters the market,” says Choi.

This system also provides complete self-diagnostic features and digital gauges for information, such as hydraulic oil and water temperatures, as well as fuel levels, which are displayed on the screen.

Further, a user mode allows the operator to customise the engine speed, pump output, idle speed and other machine settings according to the requirements of the job, while an automatic power boost feature allows for additional power when needed.

The enhanced operator cabin features a transparent skylight for optimal visibility and ventilation. Variable cabin

guards offer enhanced operator safety and wide catwalks, large handrails and antislip plates provide easy access to the cabin.

The R1200-9’s undercarriage also boasts a sealed track chain, full track rail guard, large upper roller cut-outs and tapered side frames for debris clean-out, as well as a grease-type track tensioner.

HPE Africa has fully trained and qualified mechanics to service and repair the 120 t hydraulic excavator.

HHI team leader JJ Choi expects the exca- vator to be well received by South Africa.

He states that the size and robust nature of the machine are well suited for large earthmoving projects, especially in the harsh African climate and landscape.

“A considerable amount is being invested in African mining projects, and development is taking place rapidly.

With this in mind, local contractors will look for earthmoving machinery, such as the R1200-9 excavator, which is robust and reliable. These features, coupled with HPE Africa’s commitment to customer support, places the Hyundai R1200

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Becker Mining South Africa - IGBT traction battery chargers Becker-igbt-traction-batterychargers…one Becker Mining South Africa's recently launched IGBT mine traction battery chargers have been designed to charge underground traction batteries in the shortest possible time, at the lowest possible temperature, to ensure optimum battery performance.

“The most common causes of battery failure and reduced service life are associated with incorrect charging techniques,” says Andrew Trentelman, senior general manager: electronics, Becker Mining South Africa. “Becker Mining's new IGBT mine traction battery chargers, which utilise insulated-gate bipolar transistor (IGBT) technology for quick on and off switching, are more efficient and cost effective than conventional transductor controlled, oilcooled traction battery chargers.

“These IGBT battery chargers are lightweight air cooled units, which are controlled by an intelligent micro processor circuit that acts as the main control computer, responsible for the logging, charge functions and controls.

“Becker Mining's new chargers utilise Delta Volts/Delta Time (DV/DT) for the precise detection of a battery's gassing

stage so the charger can terminate the second rate charge more rapidly. This technology, which prevents overcharging often associated with conventional battery chargers, ensures reduced charging times and lower power consumption. By reducing the charge current once DV/DT is reached, batteries are charged at a significantly lower temperature.”

Becker Mining South Africa's recently launched IGBT mine traction battery chargers have been designed to charge underground traction batteries in the shortest possible time, at the lowest possible temperature, to ensure optimum battery performance With an improved power factor of 0,8 and a maximum input current which has been reduced from 42 A to 32 A, these energy efficient battery chargers offer power savings up to 10 KVA during maximum output current.

The auto cell detection system enables IGBT chargers to execute a short test charge on every battery to the determine the number of cells connected to ensure

correct charging. Other cell configurations and various Amp/hour ratings (100 A/h to 1 000 A/h) can be programmed and stored through the user interface, with no additional changes to the battery charger itself.

For the efficient management of mine traction batteries, Becker Mining's robust chargers have an integrated power line communication (PLC) identification method, which automatically logs the serial number, as well as the charge history related to that specific battery.

Becker-igbt-traction-batterychargers…two The user interface is a full colour display which provides relevant information, including voltage, current, state of charge, temperature of stack, capacity charged, duration of charge, errors, time and date.

Becker Mining's IGBT traction battery chargers are equipped with Wi-Fi to facilitate future downloading of data, errors and the charge history of each battery, or for viewing or analysis on the surface.

Becker Mining South Africa offers a technical advisory and support service to mines throughout Southern Africa.

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African mining investment rests on local understanding Africa has been earmarked as a big growth market in which to operate, but you need to know what you’re doing to achieve any kind of success in this dynamic environment. This is especially true in two of the largest sectors on the continent: mining and manufacturing.

Assuming improvement in the global economic condition, the Economist predicts that Africa’s economic growth, which stood at 4.2% in 2012, is projected to accelerate to 4.5% in 2014. The outlook for Africa’s mining sector remains equally bright, according to a KPMG report, which states: “Huge tracts of Africa remain largely unprobed. The African continent contributed 6.5% of the world’s mineral exports during 2011 from mining 20% of the world’s land area.”

However, while the continent as a whole is mineral-rich, the regulations and business environment within each African country differ, so companies looking to invest in African mines or supply them with products will require an understanding of the cultures and societies in which they wish to operate, says Louise Robinson, Managing Director of CG Consulting and Database360, a Cape Town-based strategic marketing consultancy specialising in lead generation and business-to-business (B2B) database creation across the African continent.

“Rich with opportunity, Africa is still largely considered uncharted territory for the business world compared to other regions, so getting to know the challenges

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and intricacies of working alongside African colleagues and their traditions could provide your company with an edge.

While poor infrastructure can make logistics a headache, a lack of understanding of the local business environment can stop a venture in its tracks.”

– relationships are key, and speaking to the right people will make or break a nascent business relationship. This is especially important in the case of winning tenders – business is not necessarily awarded just on the basis of the best price, but on relationships built on trust. You win people over with personalities, not technicalities.”

Robinson points out that research is as vital as mapping out a strategy, and that a real understanding of the pitfalls and opportunities is the best way to approach business in Africa. “In Africa, you can’t be sure what you’re in for unless you have researched the country first. Each African country operates differently.”

She adds that China accounted for almost 17% of the world’s mineral imports by value in 2012, and 16% of Africa’s exported commodities were shipped to that country. Other countries, like Canada and the US have likewise spent decades building relationships in Africa’s mining sectors.

For example, the Southern African Development Community (SADC) produces two-thirds of Africa’s mineral exports by value. SADC has 15 member countries, each of which has different investment requirements, mineral ores, and regulations; and each of which has a different approach to business. Similarly, the East African Community (EAC) has several mineral belts that produce tanzanite and gold among other commodities, and is made up of five equally divergent countries.

“As Africa becomes an increasingly attractive location for international business ventures, we are seeing an increase in the number of corporate and public sector clients who ask for training in operating in African countries like Kenya, Ghana, South Africa and Zambia. These organisations are leading the way in ensuring that their employees have the right level of cultural support and intercultural training they need to successfully adapt to their professional and daily life in Africa. Investors that are considering moving into mining industries in various African countries but have not done so yet, or those that are trying unsuccessfully to make inroads using traditional Western business practices, are losing the opportunities to those companies that are already putting in the time and the effort to learn how various African countries work.

She adds that researching what your competitors are doing will also help highlight opportunities, but that the cornerstone of success lies in relationships.

“Communication is paramount, and building up relationships requires a good understanding of cultural differences.

Mining is no different to any other business

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Healthy drivers can save you money When we think of driver training, we think about learning what to do in an emergency situation or defensive driving techniques. Now there is a new approach to driver safety on the road that is proving to be just as important.

The wellness of the person behind the wheel is as essential to reduce accidents as what the driver’s skills are.

As much attention should be paid to the health of your drivers as what is paid to the health of employees working behind a computer. The Federal Motor Carrier Safety Administration in the US has made it mandatory for entry-level drivers to undertake driver wellness training. They acknowledge that drivers are at higher risk of on-the-job injury and more needs to be done to reduce personal health problems which can contribute to accidents.

MasterDrive’s Wellness in the Driving Space workshop is an educational programme on posture, nutrition and breathing exercises that leave drivers with a sense of well-being while improving productivity. It is a holistic

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approach to driver training that looks at all aspects of a driver’s lifestyle to improve reaction times and driving abilities.

and energy will then be affected. Driver wellness training will teach you how to eat in a way that stabilises moods and improves reactions.

An area the workshop focuses on is exercises and stretching. This increases the ability to check blind spots as it improves flexibility. Exercise also reduces wear and tear on joints as a result of long hours behind the wheel.

Good nutrition also helps reduce road rage. Hydration is essential as dehydration can affect your decisionmaking and cognitive performance on the road. Studies have shown dehydration also reduces reaction times by 23%.

Drivers will also learn how posture and breathing exercises increase their safety.

Sitting with your head forward can reduce lung capacity by 30% causing fatigue, whereas correct posture and breathing increases concentration and even reduces the impact on your body in the case of an accident. These breathing exercises can also help drivers think clearly when they feel angry on the road.

Even your meals while driving affect your wellness and consequently driving abilities. Fast-food is high in energy and causes unstable sugar levels. Your mood, decision-making, reaction time

The workshop includes stress management tips which can drastically improve the quality of your driving. It can lessen the likelihood of becoming enraged on the road as it includes techniques on how to keep your cool.

There is much more to safe driving than knowing how to avoid collisions or defensive driving. Your mental acuity and physical health ensures you use your best driving skills possible and it is driver wellness training which will help you achieve complete readiness every time they get behind a wheel.

Digital Radio to improve mine safety When man and machine work close together confined spaces like, it takes high levels of consistent vigilance to ensure safe and profitable mining operations.

To implement a credible safety methodology balanced with an efficient and profitable production plan, a mission-critical radio communications network is a pre-requisite. Without radio communications everything stops.

Just recently South Africans endured a 5.5 magnitude earth tremor that shook large parts of the country, causing one death and the evacuation of thousands of miners from the Great Noligwa and Moab Khotsong mines in the North West province.

Whilst tremors such as these are not frequent occurrences in South Africa, seismologists have warned of more frequent seismological events as a result of underground mining.

A deep-mine cocktail of explosives, man and machinery working in confined tunnels with limited air, reduced visibility, amidst often-unstable rock faces becomes particularly dangerous should an unscheduled seismic event occur.

Recent labour protest action and confrontations with illegal miners underground has further added instability to an already volatile mining

environment.

While most mines take extreme caution during operations, crisis situations do occur, and in these instances good, quick and efficient communication is imperative.

“In a crisis situation, every second is crucial,” said Tony Sipho Sibanda, Business Development Executive for Emcom Wireless, who has been assisting several Southern African mines in upgrading their radio communication systems.

“Disastrous incidents like the collapse of an underground tunnel is almost always associated with panic, shock and confusion that often leads to impulsive actions. This is where injury and loss of life can occur.”

According to Sibanda, clear, efficient, managed and controlled radio communication mitigates the risks associated with mining activities as it facilitates a seamless flow of information and data, thus enabling decision makers to continuously monitor, take immediate action and allocate appropriate resource for the situation at hand.

“In a crisis, you want to know where every personnel member is at that exact moment, their status, whether they are secure, trapped or injured and what resources are available to be deployed

to attend to them,” he said.

In the tremor that originated in Orkney in the North West recently, AngoGold Ashanti managed to evacuate 3300 workers from their two mines safely, and while there were 28 miners with minor injuries, radio communication aided in prioritising resources and getting everyone to safety on time.

“Safely hoisting all 3,300 people to surface after an earthquake of this size is an achievement of which we’re immensely proud,” said Mike O’Hare, AngloGold Ashanti’s Chief Operating Officer: South Africa, in a statement.

“Our infrastructure responded as it was designed to, and our safety protocols worked as they should.”

Sibanda says, however, that while all mines in the country are mandated by legislation to be equipped with necessary radio communications systems, some are still relying on old outdated analogue radio communications technology, which could compromise workers safety in the event of a crisis specifically when stretched beyond their normal operating limits.

Like most evolving communications technologies, radio communications too is undergoing its own digital revolution.

Much like cellular phone technology, DMR (Digital Mobile Radio) has seen the introduction of applications and

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devices that go beyond pure ‘walkietalkie’ voice communication. Modern digital radio communications solutions now integrate data and other applications into one device.

“Digital Mobile Radio (DMR), an international non-proprietary standard for digital radio communications, facilitates access to applications developers so that bespoke costeffective solutions and services can be provided,” said Sibanda.

Some of the new features of DMR include the recording of resource tracking, which allows a replay of incidents to recreate scenarios and better prepare for future events.

“With real-time tracking and biometric sensors connected to digital handheld radios, you can even define whether a person is standing, lying down or sitting in an upright position,” said Sibanda.

“You can further integrate technologies like Bluetooth into radio to interface with devices like heart rate monitors to monitor in real time the breathing and heart rates of users.”

Mine operators have always needed to be highly creative in finding ways to communicate essential information to workers down in the pit or tunnels.

In the late 1800s in Kimberley, hundreds of communication lines crisscrossed the big hole, and a morse-codelike bell or knock system was deployed to relay messages.

Radio has today evolved to such an extent where the technology makes it possible to integrate radio with other wireless and wired communications mediums such as cellular telephony, PABX and landline. A radio operating off a suitable designed network is able to call a GSM phone or PABX extension, and visa versa.

In a disaster, a miner underground can be linked to a medical emergency centre hundreds of kilometres away for instant assistance through the radio network.

“We need to ensure our communications backbone and infrastructure is ready for events such as the recent quake and associated aftershocks and not be caught on the back foot should a big one come along. It should not have to be a quake or loss of further lives that shakes us to action,” said Sibanda.

Sibanda said he has often come across situations where the management of a 22

mine forgot to upgrade and consider the evolvement of their radio communications, only to notice the critical importance of radio communications when the system goes ‘off air’. “And then they expect miracles!” he said.

security markets to name a few.

EMCOM is active in over 39 African countries and boasts an Mine radio communications networks enviable track record are critical infrastructure, and should be subject to the same attention as other over 43 years’ African key tools, plant, technologies and experience in the equipment. critical communications “It a well known fact that mine industry. operators will allocate more budget to one large hauler truck than to a radio EMCOM is a trusted network,” said Sibanda.

DMR technology facilitates an always partner in the on, always available, bespoke, integrated solution, better audio quality, conceptualisation, better walkie-talkie battery life and design, deployment, lower infrastructure costs over wide integration, operational areas. management and In addition, legacy analogue two-way radio systems can be migrated to DMR financing of missionon the same licensed frequencies, critical radio without significant disruption of critical operations. communications solutions throughout EMCOM Wireless the continent. EMCOM provides integrated as a result of its professional missionentrenched belief in critical radio empowerment through communications skills transfer, remains solutions. Along with dedicated to growing our strategic partner, Tait Communications in African competency for New Zealand, EMCOM Africans by Africans.

To learn more about are at the forefront of the design, development how DMR can benefit and deployment of DMR you and your organisation, contact technology in Africa.

Emcom Wireless Growth in global Business Development demand for DMR solutions is evidenced by Executive, Tony Sipho Sibanda at a steady increase in implementations across tony@emcom.co.za. the utilities, mining, transport, public safety and security, defense, national and Govt

Leading Online Mining Auctioneering Company Continues to Break Ground As with the SAA mission of ‘Bringing the world to Africa and taking Africa to the world’, a local company just 2 years old has adopted a similar stance for institutional mining and equipment sales at a time when all eyes are on the mining sector at large.

With over 50% of assets being sold internationally to the likes of Saudi Arabia, Jordan, Egypt, Turkey, Germany, Peru and to neighbouring SADC countries, consumers and companies are accessing previously untapped opportunities in mining equipment.

Representing most major mines in South Africa, Clear Asset continued to break ground taking a wide selection of assets to auction while providing full due diligence, images, specifications and service history per

asset (where possible) in an effort to remove the uncertainty often related to auction purchases.

The company’s aim is to source both prime and lower quality/tired assets and represent them accurately. “Offering interested parties support in technical guidance pre-auction, through to actual

Closing on 26 August, the latest Clear Asset auction takes to market a wide selection of assets including 8 Mercedes Benz Actros 2650 trucks from Unitrans (2007/2008), a Mercedes Benz 2648 horse with interlink flatbed trailer, Komatsu 320 FEL and jaw crushers from Afrimat, as well as a large variety of scrap including steel hoist cables and hoppers from Sibanye Gold’s Beatrix and Kloof shafts.

Additional items include a Volvo EC700BCL (2012) excavator from Mamelodi Quarries and even 10 quad bikes form Anglo gold Ashanti.

Due to a challenging last quarter being affected by labour unrest, unresolved disputes and legacy purchases, there is much focus on freeing up working capital at the mines.

road and shipping support once the sale is confirmed, is a key differentiator,’’ says Ariella Kuper of Clear Asset.

For more information visit www.clearasset.co.za or contact Ariella Kuper on 079 899 9998.

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AMPCONTROL SIGNALS LOCAL CONFIDENCE WITH NEW FACILITY In a declaration of confidence in Southern Africa's mining sector, electrical engineering firm Ampcontrol has today announced the establishment of a technology and manufacturing facility in Johannesburg.

The purpose built facility provides the foundation for Ampcontrol to achieve its objective of becoming the premium supplier of advanced electrical solutions to the mining and industrial industries in South Africa.

Ampcontrol's technologies are used worldwide to energise, monitor and protect mining, tunnelling and oil and gas sector operations, specialising in hazardous area coal mining solutions.

Ampcontrol also has extensive experience in the mineral and metal mining, industrial and utilities sectors.

"We are excited to expand our operational footprint in South Africa to better serve our customers", said Ampcontrol Africa Managing Director, Edwin Bauer.

"We see robust growth in South Africa's

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mining sector and this new facility will help us effectively respond to the demand in the industry as well as introduce new and safer technologies".

Currently operating out of separate facilities in Denver and Wadeville, Ampcontrol's operations will be consolidated into the single, 10,000sqm facility to support Ampcontrol's wellestablished electrical equipment including flameproof gate end boxes, substations and a wide range of transformers.

satisfaction.

An on-site training centre will be used to teach clients how to operate Ampcontrol's power distribution and electrical systems as well as increase the skills of Ampcontrol's 170 manufacturing, service, project and engineering employees.

For more information on the new facility, visit www.ampcontrolgroup.com

"We'll also be able to locally manufacture new product lines including conveyor safety controls and environmental monitoring solutions as well as one of Ampcontrol's flagship technologies, the gas filled explosionproof mining transformer," Bauer said.

AMPCONTROL FACTS Operates sites across South Africa, Botswana, Australia, China, Hong Kong, New Zealand, Russia, United Kingdom and the United States Entered the South African market in 2007 with the acquisition of Allenwest Wallacetown, flameproof equipment supplier Fermlec and transformer specialist Magnalec

State of the art manufacturing technologies and processes will ensure high quality control and manufacturing throughput, in turn achieving reduced lead times and increased customer

Media contact: Andrea Preston Strategic Marketing Advisor P +61 (0)2 4961 9000 E andrea.preston@ampcontrolgroup.com

Cat® 824K Wheel Dozer Delivers Efficient Productivity with Long Term Durability for Optimum Value The new Cat® 824K Wheel Dozer builds on the solid performance of predecessor models with engineering refinements in its power train, operator station and structures, and in features that enhance safety, serviceability and machine management. With a net power rating of 405 horsepower (302 kW) and a maximum operating weight of 74,966 pounds (34 004 kg), the 824K is available with six blade configurations ranging in capacity from 6.6 to 21.1 yd3 (5.0 to 16.2 m3) to customize it for production dozing, stockpile dozing or cleanup work.

equivalent emission standards.

For further drive train efficiency, the smooth-shifting, electronically controlled, 4F/4R Cat power shift transmission can be set by the operator to automatically upshift or downshift based on machine speed. In addition, the Single Clutch Speed Shifting controls allow the 824K to carry momentum through range shifts for high productivity and fuel savings.

Both operating efficiency and operator convenience get a boost with the left foot pedal, which serves as an engine decelerator, transmission neutralizer and brake, depending on the degree of application. As a decelerator, the left pedal allows the operator to temporarily reduce engine speed by overriding the throttle lock setting when maneuvering around obstacles. Additionally, a new fuel tank provides minimum 12 hours operation, depending on the application.

The Cat C15 ACERT™ engine features an electronically controlled fuel delivery system, an engine idle shutdown system to conserve fuel by limiting idling time, and a delayed shutdown feature to ensure that the engine is not stopped until operating temperatures have stabilized. Drive train efficiency, fuel economy and travel speeds are further enhanced with the lock-up clutch in the Cat torque converter, a feature that reduces both drive train power losses and system heat. Two engine options are available that meet either U.S. EPA Tier 4 Final/EU Stage IV emission standards or U.S. EPA Tier 3/EU Stage IIIA

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An optional tire pressure monitoring system provides real time information to the operator in the cab, ensuring proper inflation and optimizing tire life.

The STIC™ (Steering and Transmission Integrated Control) system allows single-lever steering and transmission control. Simple side-to-side movements of the STIC lever provide up to 43 degrees of steering articulation in both directions for precise maneuverability, and buttons on the lever provide fingertip control of directional and range shifting.

Operator environment A primary focus for the 824K design is operator convenience and safety, such as providing lighted, shallow-angle stairways for entering and exiting the cab and designing the STIC armrest to fold away for added room when entering or leaving the seat. Also, the Cat Comfort Series air-suspension seat features extra thick cushions and moves both the attached electro-hydraulic STIC control pod and electro-hydraulic implement control pod when adjusted.

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The cab, isolation-mounted to the frame, is pressurized with filtered air, and the selected temperature is maintained automatically. The control panel uses large, backlit switches with LED indicators, and a simple twoposition rocker switch controls the parking brake. An optional rearview camera with in-cab monitor increases operator awareness.

Serviceability and machine management To promote the safety of personnel servicing the 824K, routine maintenance points are grouped and accessible from ground level or from non-skid walkways that are protected with handrails. Swing-out doors on both sides of the engine compartment provide easy access to daily service checks, and ecology drains simplify service and help prevent spills. In addition, a ground level power service center has electrical disconnect, emergency engine shutdown and stairway light switches.

To further complement serviceability, the Cat Vital Information System, VIMS™ 3G, integrated into the 824K design keeps operators informed about machine operating conditions via a graphic display that features a touchscreen interface. To expand machine monitoring capability, the Cat Product Link™ system provides event and diagnostic codes, as well as data such as operating hours, fuel level and idle time.

This information is transmitted to a secure web-based application, VisionLink®, which can convey information to machine owners and dealers, including working time versus idle time and mapping functions.

Durable structures The 824K design integrates massive, purpose-built structures and heavy-duty components that can support multiple rebuilds. The new dozer features a full box-section rear frame designed to resist twisting forces and shock loads encountered in heavy dozing. Steering cylinder mounts are designed to effectively dissipate steering loads into the frame, and axle mounts are heavyduty components that contribute to the overall structural integrity. This robust design results in significant cost savings and sustained optimum performance over the life cycle of the 824K.

Press InquiriesCaterpillar Trade Press Media Representatives Americas Sharon Holling: Holling_Sharon_L@cat.com Johanna Kelly: Kelly_Johanna_L@cat.com Europe, Africa, Middle East Francine Shore: Shore_Francine_M@cat.com

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New 990K Wheel Loader Features Increased Productivity, Enhanced Safety and Operator Efficiency, and Easier Service The new Cat® 990K Wheel Loader offers more power and increased payload for greater productivity and fuel efficiency. The 990K also features a redesigned cab that delivers a superior operator interface and a quiet environment, and several new features promote operator and maintenance technician safety and performance.

Designed as an optimum loading tool for Cat construction and mining trucks, specifically the 773, 775 and 777 ranging from about 60 to 100 tons (54 to 91 tonnes) capacity, the new 990K also features engine configurations to meet customer needs worldwide. The 990K builds on the proven features of previous models and replaces the 990H.

Performance Series Buckets promote fast filling and full bucket loads on every pass, and they are available in sizes ranging from 11.25 to 13 cubic yards (8.6 to 10.0 cubic meters).

The rated payload of the new 990K is 17.5 tons (16 tonnes)—up from the 16.5-ton (15- tonne) payload of the H Series model. The increased payload makes the new loader a perfect 4-pass match with the Cat 775 truck for efficient, high-production loading. New,

The 990K is available as a U.S. EPA Tier 4 Final version and as a Tier 2 version for less regulated regions. No regeneration or operator intervention is required for the NOx reduction system and diesel oxidation catalyst equipping the Tier 4 Final model. And there is no

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The Cat C27 ACERT™ engine powers the 990K and delivers an 11 percent increase in power compared to the previous model. Net power of 699 hp (521 kW) helps deliver increased production—without any change in fuel consumption. Lower engine speed helps drive economical fuel use. Additional fuel savings accrue with the 990K ECO Mode (on-demand throttle), engine-idle shutdown system, and engine-idle kickdown/auto-resume system.

increase in fuel consumption as a result of the engine emissions control systems.

The Cat exclusive, field-proven impeller clutch torque converter uses a lock-up clutch, providing direct drive to boost fuel economy, trim cycle times, and reduce heat, especially in load-and-carry applications. The system allows operators to balance rimpull and hydraulic power for optimum loading efficiency. Positive Flow Control implement hydraulics use a variable displacement, electronically controlled pump to precisely apportion oil flow based on operator control inputs.

Improved cab and advanced operator interface The redesigned cab allows easy access and egress and features noise suppression that delivers a benchmark sound level of 69.9 dB(A) for superior operator comfort. The Cat Comfort III seat provides integrated seat-mounted controls for smooth and comfortable operation. Transmission controls,

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The operator station also features the Cat Vital Information Management System, VIMS™ 3G, which provides customizable operator profiles, a cycle timer and an integral Payload Control System, which provides on-the-go payload weighing. The graphical information display is easy to use and keeps key information in front of the operator.

The 990K is equipped with the Cat Vision rearview camera system and incab display to show the operator the area behind the loader. The Cat Detect object detection system, available as an option, builds on the camera system with radars and in-cab software that provide notification to the operator when an object is detected within the radar coverage area. The systems are designed to enhance operator awareness, especially in congested

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loading areas.

Enhanced serviceability and versatility For added safety, a remote panel houses a stairway light switch, engine shutdown switch, and lockouts for the transmission and engine starter. A second panel provides convenient access to the battery disconnect switch and a jump-start receptacle. Routine maintenance points are easily accessed, including hydraulic pressure taps and oil sampling ports.

The optional ground level service center reduces service time. It displays fluid level status, houses drain-and-fill ports and provides a data port for diagnostic work.

A number of additional options are available to tailor the loader for specific applications and sites. For example, the

optional high lift linkage enables the 990K to load Cat 777 trucks. The integrated axle cooling package and ride control options are particularly beneficial in load-and-carry work.

Application specific arrangements are available for steel mill and forestry applications. Increased stability and larger lift and tilt cylinders provide the extra capacity required for these tough applications. Additional guarding and protection keep the machine running in the harsh steel mill environment. Threevalve hydraulics is included in the millyard arrangement for smooth top clamp control when handling logs.

Contact the local Cat dealer for more information about the 990K Wheel Loader, or go to: www.cat.com

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NYLOCOMP Postal Address: Postnet Suite 45 Private Bag X10578 Bronkhorstspruit, 1020

CONVEYOR IDLER SPECIALISTS Nylocomp specialize in the design and manufacturing of conveyor idlers for all sectors of mining and industry. This includes HDPE, Steel, Gravity, Impact, Guide, Anti-Roll Back and our popular Yiga-P® Idler.

Nylocomp's designs, are done on Autocad Inventor by our consulting Engineer mr.Hannes Conradie. Manufacturing is done at our factory in Bronkhorstspruit, Gauteng. Quality Control is done after each stage of manufacturing by 2 quality control supervisors, to ensure continuous quality in production. Each idler is tested before leaving the factory. Nylocomp is in the process to become ISO9001:2008 Compliant.

Nylocomp's products also include: Garland strings, Linear Sreen Idlers, Sheets of Tarentaal® and Parrot Green™, Sheave Wheels and Marion Rope Blocks.

Nylocomp strives to provide our clients with product information and technical support to assist them to make the correct selections in respect of product applications for their specific needs. It is our objective to provide the best possible, before and after, sales service to our clients. Our client base stretches from South Africa, Namibia, Botswana, Mozambique and Australia.

Registered Trade names: Tarentaal®, Blue Crane®, Ostrich Black®, for different grades of Polyethylene and Yiga-P® for Nylocomp's Green Idler.

Tel: +27 13 932-1572 Fax: +27 13 932-3412 Mobile: +27 82 896-8739 Email: nylocomp@nylocomp.co.za nylocomp@mweb.co.za Website: www.nylocomp.co.za