Atlas Copco presents its innovations in machinery for mining

In Bauma 2010, international trade fair of machinery for the works, materials of construction and mining, equipment and vehicles for works, have been organizing more international pooled booths than ever before. According to current data, international pavilions from 11 countries participated in the latest edition. While repeated participation of official flags of China, Germany, France, United Kingdom, Canada, Korea, Poland, Spain, Czech Republic, United States, in the last meeting there was a new clustered stand of Brazil and additional two of United States in the segment of mining productsobtaining and processing of raw materials and drilling of tunnels.

"The growing demand of international official flags, as well as exhibition space of individual stands precisely in this segment of mining products, confirms that this segment has become perfectly from their integration in 2004" says Eugen Egetenmeir, a member of the Management Board of Messe München. "Mining and drilling of tunnels are markets of the future for the sector around the world, and Bauma may represent them to perfection as a world leading trade fair," continues Egetenmeir. The Atlas Copco company took advantage of the global event to present new products related to mining.

Presented in the latest edition of Bauma, Roc T20 is a new team of drilling hydraulic wheeled, compact and powerful, designed to make the work more easy and faster.

It's a team highly versatile and easy to transport that it makes it the ideal choice for a wide range of auxiliary drilling applications.

The T20 Roc is designed to drill boreholes 38-64 mm in diameter and comes equipped with a diesel 82 kW Cummins Engine and a compressor of 50 l/s. A Cop 1132 punch of great performance, which uses less energy than conventional punches, is responsible for providing the power of drilling. Generates a maximum of 11 kW output power and reduces the amount of fuel used by every meter of drilling. It also has an advanced tracking system of the drilling, which allows to control the performance of this through the pressure of rotation. A secondary system of control of the drilling function is the function antiatranque, which constantly monitors the mouth of drilling and that helps to avoid that the string is obstructed or get lost in the grounding rod. Drilling speed can also be adjusted for an optimal emboquille.

Completing the family of Fund Serococ Cop, started in 2002, hammers Atlas Copco presents now the model 44 Gold. The new model match the performance of his older brothers by reducing its size.

The new Secoroc Cop 44 Gold shares many characteristics with the rest of the range. For example, the piston designed to enhance the transfer of energy; the suspension of the tube of control with new rings of steel and new shock absorbers rings compression; the steel casing of high quality of the hammer, which offers a greater force of impact and excellent resistance to wear and tear; and the extraordinary capacities of scanning.

With a reduced environmental impact, Secoroc Cop Gold hammers are intended for the market of production where the efficiency, productivity, reliability and durability are essential. So are maintenance-free and have a lifespan of 10-15% higher than the equivalent hammers.

The great novelty presented at Bauma by Atlas Copco was Roc D65 DTH drilling carriage. It's a team for the drilling of boreholes of 110-203 mm with hammer in background. It mounts a compressor Atlas Copco XRX 10 screw and two stages with a maximum of 30 bars work pressure, and a C15 Caterpillar engine of 402 kW of power.

This car 22.6 tons and 2.5 meters wide, 11.7 metres long and 3.5 metres high is specially designed for the large mining operations and is characterized by its productivity, reducing downtime and a fully automated technology.

HB 3100 has all the best features of the range of heavy hammers of Atlas: the VibroSilenced system that protects the noise and vibration, self-control that adapts the frequency and energy of impact to the hardness of the rock and the integrated automatic lubrication system ContiLube II. With StartSelect, the operator can influence the starting and stopping of the hydraulic hammer. And with the optional DustProtector prevents the entry of dust and particles of rock at the bottom of the hammer. In addition, the PowerAdapt system disconnects the hydraulic hammer when the oil pressure is too high. This is very effective when the hammer is used in different media, since these hammers can be hydraulically overload in the event of an incorrect adjustment of the pressure of the oil in the support team. As they work under the harshest conditions, optimized guidance system provides greater stability and resistance. Weighing approximately 3150 kg, HB 3100 can be mounted in support of categories from 30 to 52 tonnes.

Starting in January 2011, the laws on emissions from off-road from 130 to 560 kW diesel engines will be much more stringent. In the case of the European market, these emissions are regulated by the legislation EPA TIER 4A / EU stage III B. This next phase of the legislation contemplates a major adaptation with a drastic reduction (by a factor of 10) of the particles or char allowed in the exhaust gases. In the case of nitrogen oxides, which are the largest contributor to the formation of smog, the level of acceptance is cut in half in respect of the previous legislation.

The Atlas Copco Portable Air Division has evaluated the two existing technologies that can meet these new restrictions: the selective catalytic reduction (RCS) and recirculation of exhaust (GER) combined with a filter of particles (FDP). The reduction of NOx, GER/DPF, Caterpillar system was chosen as best solution. This ensures that customers who use off-road diesel engines do not have to add DEF (Diesel Exhaust Fluid) or AdBlue. A study of the load factor made the field in a representative sample, allowed to conclude, along with Caterpillar, that the reduction GER/DPF system is the best technology for portable compressors of the brand.

The stage III B represented the development of more aggressive and expensive in the history of Caterpillar products. The module of clean emissions CAT minimizes the impact on the efficiency of the fuel. According to Guy Laps, Vice President of engineering of the Atlas Copco Portable Air Division, "the first estimates that, based on the model of engine, we can achieve a reduction of the fuel consumption of up to 2 %". This major change will also affect costs, and therefore, in the price. Total sale price of the affected range increase between 35 and 45% is likely.