The new specialist: This new machine concept, representing the latest addition to the shearer loader portfolio, is based on the proven principle of high power density combined with reliability and user-friendliness in control and maintenance that has been inherent to Eickhoff products for many decades and enables today‘s miners to extract even the thinnest seam thicknesses in a cost-effective manner.
The Eickhoff SL 300 L, coming with innovative control and automation technology in combination with two powerful 300 kW cutter motors which are housed in a machine body of just 75 cm in height, is a novelty in high-performance thin seam mining for seam thicknesses starting from as low as 1.2 m.
A high degree of user and maintenance friendliness plays an important role in this market segment. Prepared with cutting edge automation concepts for remotely controlled operation alongside a sophisticated construction concept, the Eickhoff SL 300 L offers the highest availability rates while requiring only very short periods of maintenance.
‚Breeding refinement‘‚ made by Eickhoff: Here, the power of the SL 500 and the compactness of the SL 300 are united in one machine. This is how the Eickhoff SL 750 was born – a machine with a body just slightly larger than that known from the SL 300 and with an installed power which could formerly only be realized on bigger shearer loaders.
The Eickhoff SL 750, having been put into operation in US high-performance longwall systems for the first time in 2006, received a throughout positive feedback on its use. And also the subsequent worldwide installation of further machines of this type fulfilled all expectations by far. According to the unanimous opinion of the customers, higher production rates are achieved more economically when using the Eickhoff SL 750 shearer loader.
Highest power density in the smallest of space: The Eickhoff SL 300 has been firmly established in the international market for over 20 years now. Designed as a mining machine for thin to medium-thick seams, it was upgraded time and time again with the latest innovations over the years. Its original cutter motor power was 2x220 kW, combined with 2x35 kW DC haulages. Thanks to its consistent further development, its power could meanwhile be increased to 2x480 kW for the cutter motors and to 2x90 kW for the AC haulage motors.
The great thing here is that even though the total installed power has been more than doubled since its early days, the original machine concept providing for compactness in size has been maintained. This was made possible by implementing state-of-the-art production techniques into the Eickhoff gearboxes and by using the meanwhile available, more efficient, smaller electrical components specifically designed for underground use. The Eickhoff SL 300 is in operation worldwide and consistently achieves production rates of 600,000 tons a month.
The next leap in evolution: With the new SL 900 shearer loader, Eickhoff increases the production rates up to the absolute maximum. This high-performance mining machine combines the compact dimensions of the SL 750 with the staggering power of the SL 1000. Thanks to the implementation of state-of-the-art design and production techniques, a machine with impressive properties could be developed and constructed. As a result, the Eickhoff SL 900 excels by high flexibility in varying seam thicknesses ranging from 2.4 to 6.0 m – and all that along with an installed total power of more than 2,500 kW.
The Eickhoff SL 900 thus covers a wide spectrum of cutting ranges while the excellent power reserves provide enormous potential for increased production rates.
One of the outstanding examples of German engineering: The Eickhoff SL 500 has been a steady peak performer in the international mining industry for nearly two decades. Introduced to the mining world in 1994, the SL 500 was originally designed with a total installed power of 1,130 kW. Nowadays, it comes with an impressive 2,015 kW and is thus ideally suited also for today‘s most demanding underground conditions. Owing to its constantly high availability, the Eickhoff SL 500 has earned a worldwide reputation as a ‚real workhorse‘.
Monthly production rates of one million tons are nothing unusual for this shearer loader. Operators value the characteristic Eickhoff underframe concept while investors appreciate its high profitability. In this way the Eickhoff SL 500 has set the standards for modern high-performance mining for 20 years already.
A class of its own: Equipped with a total installed power of 2,800 kW, the Eickhoff SL 1000 is specifically designed to achieve peak production rates at seam thicknesses of up to 8.6 m. But also customers with seams as thin as 3.0 m can profit from the modular design of the SL 1000 given that the machine with its exceptional cutting power can be installed in thinner seams as well by just changing a few minor components. Furthermore, the maximum tunnel clearance underneath the machine body leaves enough space for even the biggest lumps to pass smoothly.
The Eickhoff SL 1000 was presented to the world market early in 2007 and put into initial operation at a major chinese customer.
The customer‘s many years of experience with the Eickhoff SL 500 operating under harsh cutting conditions were implemented into the development of the SL 1000 for ultra-thick seam mining. The result: The most powerful shearer loader of the world!