Capital Equipment News

The new Scania mining tipper – which made its grand South African debut at the recently ended Futuroad 2017 – offers a significant 25% increase in payload to 40 t, a key value proposition for mining customers seeking to optimise their load-and-haul processes at the lowest total cost of ownership in challenging operating conditions, writes Munesu Shoko.

The South African mining fraternity is facing tough challenges, and only a compelling strategy to implement cost-efficient solutions for optimised operational excellence will keep mines in business. While rebounding commodity prices have offered some reprieve, policy and regulatory uncertainty have frozen new investmentinto the mining sector, putting the local mining industry under immense pressure.

tipping new payloadsWith that in mind, Scania’s new G460CB8x4EHZ mining tipper, which offers a significant 25% more payload than its predecessor, the G410CB8x4EHZ, has rolled off the production line to close the gap between conventional yellow metal haulers and existing tipper offerings. Raimo Lehtio, MD of Scania South Africa, tells Capital Equipment News that, with its 40 t payload, a significant increase on the G410CB8x4EHZ’s 32-34 t capacity, the new G460CB8x4EHZ mining tipper plugs the payload gap between conventional tipper trucks and their yellow metal counterparts.

“The capacity is high enough for high production mining operations. With a 25% payload increase as the most prominent benefit, the new Scania heavy tipper offers high uptime, longer vehicle life, higher residual value and lower total cost of ownership,” says Lehtio.

Enter Scania G460

Lehtiö says Scania South Africa has chosen to introduce the new G460CB8x4EHZ mining tipper at a time when local mining operations really need to relook their hauling solutions to improve their cost per tonne indicators in such difficult operating conditions. The new mining tipper headlined Scania’s exhibit at Futuroad Expo Johannesburg 2017 with its imposing, gigantic stature that cut a conspicuous figure among other offerings on show.

Anders Friberg, general manager – Vehicle Sales & Export at Scania South Africa, says with its excellent equipment-to-payload ratio and greatly improved technical availability, the new offering can be specially tailored to meet any type of mining-specific demands.

The mining tipper’s 40 t payload is the most prominent improvement on the new offering compared with its predecessor. Charnie-Lee Adams-Kruger, key account manager – Mining at Scania South Africa, says increased truck payload enables mining operations to consolidate loads and thus reduce the amount of vehicle movement required to distribute a given quantity of material on site. This can yield economic, safety and environmental benefits. “The biggest benefit of increased payload is that mines will need fewer trucks on site, which translates into fewer drivers as well, but more importantly, less operating costs related to maintenance of many trucks,” she says.

The new tipper also benefits from a radical reinforcement of the vital components in the powertrain and suspension to enable sound durability and reliability. “Increased payload calls for a strengthened drivetrain, more horsepower (hp) and the necessary reinforcements to accommodate larger loads,” says Ruben Govender, key account manager – Mining at Scania South Africa.

The new mining tipper is equipped with heavy-duty rear axles with cast-iron housings to stand the test of challenging, rough mining conditions. Both rear axles are equipped with shock absorbers to improve traction and comfort. In addition, the increased track width and lower bogie height make tipping both safer and more stable. Oil filter, drain plugs and brake chambers are placed in well-protected positions.

The Scania heavy tipper also benefits from a ladder type frame with C-profile side rails, which is roll-formed with a yield strength of 500 MPa. It also comes with reinforced front axles with excellent ground clearance.

The progressive bump stops in the front suspension help absorb part of the load, relieving stress on the springs and frame. The cab structure comes with galvanised sheet steel panels, laminated windscreen and tough, hardened door windows to withstand severe impact of the rough conditions associated with mine pits.

More features

The new Scania mining tipper comes with a 12+2 speed range-splitter gearbox, with overdrive, two crawler gears and two reverse gears. The power take-off is mounted on the rear of the gearbox, designed for direct mounted hydraulic pump. It comes with a servo pump with variable displacement which reduces temperature and stress on the steering gear. The Scania Opticruise provides accurate and smooth automated gear changing for reduced driver fatigue and improved productivity.

Bearing in mind that safety is a key parameter in any mining environment, the new behemoth comes with a range of features that speak to increased vehicle safety. For example, yellow boarding steps and grab handles are available on request.

Another safety feature, which also affects uptime and productivity, are the yellow wheel nut indicators showing when a wheel nut needs re-tightening.

Every vehicle has to undergo service and maintenance, but it is always important that any downtime related to that be kept to the shortest possible time. The focus is evident through easy access to grease points and all major service points.

New tyre specs are also available, bearing in mind the increased payload on the new tipper. 325/95R24 tyres – with a load capacity of 5 500 kg per tyre at maximum speed of 45,5 km/h and inflation pressure of 9,3 bar – can be fitted on all axles. However, if the workshop is restricted to handle inflation pressures below 9 bar, two other options are available: a load capacity of 5 250 kg per tyre at maximum speed of 45 km/h or a load capacity of 5 500 kg per tyre at maximum speed of 30 km/h. Alternatively, 375/90R22.5 tyres can be fitted on front axles. These have a load capacity of 5 500 kg per tyre at a maximum speed of 60 km/h with an 8,9 bar inflation pressure.

Mindset shift

While Govender agrees that local miners still need a complete paradigm shift whenit comes to their selection of hauling gear,which still favours yellow metal solutions,mainly driven by the conventional “bigger is always better” mentality, he is of the view that, now more than ever, local mines are starting to look for ways to reduce the gap between earnings and operating costs.

He is of the view that the conventional thinking has always been an obstacle to identifying the most cost-effective ways and means for improvement. However, he believes that mining companies understand implicitly that productivity carries a value, but are not armed with the right information to make informed choices on the risks/rewards involved. Adams-Kruger says costs deferred or eliminated, as well as volume increases, have become the proxy for productivity gains, adding that in the current environment, there is little patience for a productivity dividend that might be six or 12 months in the making, let alone one that needs an outlay of substantial capital to get there. Adams-Kruger further argues that during the boom years mines had the luxury of acquiring equipment which was available rather than what they really needed. The downturn in commodity prices in recent years in particular has now led mining companies to take strong steps to improve productivity. She says many have stated publicly that productivity is top of their agenda and they are extolling the virtues of cutting capital spending. Friberg says although commodity prices have seen a slight recovery in 2017, investment in the mining sector in South Africa remains cautious. He reasons that continued innovation is key, especially in an environment where business expansion is very tentative and costs still need to be tightly controlled. As these pressures build, Govender says mines are relooking their equipment, especially their hauling solutions, bearing in mind that transportation constitutes up to a third or more of any operation’s costs.

He is of the view that the future belongs to the “smaller and smarter” hauling solutions such as the Scania mining tipper, especially at a time when mines really need to seek ways to maximise hauling efficiencies and productivity to maintain, or even, improve their bottom lines.

Govender believes a total mindset shift will see mines harness the benefits of the Scania mining tipper, ranging from lower capital investment, reduced maintenance costs, to lower fuel consumption and increased uptime. “The key value proposition is the total operating economy, which manifests itself is less cost per tonne and increased return on investment. That’s exactly what mines are pushing for. It’s also the services around the vehicle that we can provide as we are well aware that uptime is very important for mining operations,” concludes Govender.

Contact Capital Equipment News

Title: Editor
Name: Munesu Shoko
Email: capnews@crown.co.za
Phone: +27 11 622-4770
Fax: +27 11 615-6108

Title: Advertising Manager
Name: Elmarie Stonell
Email: elmaries@crown.co.za
Phone: +27 11 622-4770
Fax: +27 11 615-6108

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