Quarry Southern Africa September 2018 | Page 40

MARKETS 21t SANY excavator perfect gem for mining industry efficiency even further, while ensuring maximum stability during idling for smooth operation. Variable working modes include heavy-duty, standard, light-duty, and break, which enhance the versatility of the excavator in different working environments. Additional ‘smart’ features include an advanced GPRS monitoring system and machine alerts to allow for proactive monitoring of engine hours, fuel usage, and location history. The upgraded undercarriage has a unique X-shape structure in terms of its lateral beams for extra strength and rigidity, excellent torsion, and bending- resistant performance. The 21t SANY SY210C-9 excavator from Goscor Earth Moving (GEM), part of the Goscor Group, offers a high level of efficiency and productivity demanded by arduous applications such as mining. The SANY SY210C-9 features a six-cylinder in-line water-cooled Cummins 6BT5.9-C140 engine, with a rated engine power of 140hp at 2 000rpm, and a maximum torque of 571Nm at 1 300rpm. The engine is matched perfectly to the hydraulic system, thanks to the proprietary Dynamic Optimisation Matching Control System (DOMCS), developed by SANY. This advanced control system boosts operating efficiency by 6% while cutting The 21t SANY SY210C-9 excavator offers high levels of efficiency and productivity. fuel consumption by 10%. This goes a long way to reducing the total cost of ownership, points out Andre Steenkamp, general manager of the SANY range under GEM. The matched auto-idle speed function is designed for increasing fuel Sandvik’s safe, dependable blast-hole drilling and built to guarantee reliability while bringing safety and productivity to any operation. The DR412i is designed for a hole range of 216–311mm, with high- and low-pressure versions available and with a multi-pass maximum hole depth of 75m. The Sandvik DR412i has several features that work to protect operators and maintenance employees through its emphasis on creating space for accessibility and visibility, which starts at the operator’s cab and extends to work areas and routine maintenance ports. Work areas are optimised to serve productivity, with the entire layout of the rig optimised for ergonomic functionality and safety in line with worldwide standards and guidelines, including mining design guidelines and earth-moving equipment safety round table (EMESRT). Sandvik Mining and Rock Technology has delivered and commissioned the first DR461i (now identified as the DR412i) rotary blast-hole drill to the African continent. This blast-hole drill improves productivity while returning improved fuel efficiency and availability compared with its predecessors. The Sandvik DR412i is focused on the changing requirements of surface miners and designed to improve conservation and deliver dependable penetration in the world’s harshest mining conditions. Constructed for rotary or down-the-hole drilling, the DR412i is automation-ready The Sandvik DR412i. When planning and implementing load-haul mining contracts, the importance of close cooperation between contractor and customer cannot be over-emphasised, says Graeme Campbell, commercial and operations manager of Raubex Group company SPH Kundalila. “It begins with the customer providing relevant and accurate data so that the contractor can make the right calculations, but it goes much further than this,” says Campbell. “When both parties are focused on improving cycle times, the project efficiency can be significantly improved, and the cost reduced.” He highlights that contractors will not be able to achieve the required cycle times if the customer causes any delays. But, on the other hand, it only takes small improvements to shorten cycle times and reduce the cost per tonne. This result should provide enough motivation for a constructive partnership. “There are basic principles of earth moving that influence cycle times, and these include ensuring ideal conditions both on site and off site,” he says. “On site, the 38 _ QUARRY SA | SEPTEMBER/OCTOBER 2018 Partnerships can lower surface mining cycle times SPH Kundalila partners with customers to reduce cycle times. loading area should be level and stable underfoot, while the haul road needs to be a well-maintained, quality surface with as few stops as possible.” The offload area should also be easy to access, as this contributes to a quick turnaround time, Campbell emphasises.