KDK500 is one of the Corum shearer models, that are the most demanded by miners. In particular, by miners of Sadkinskaya, where such shearer has been successfully used since 2012. When Corum engineers designed new KDK500, they managed to increase its power-to-weight ratio, and introduced a system for diagnostics and monitoring of the main units, information of which is shown on the display. The shearer is capable of operations within a wide range of coal heights – from 1.4 to 3.2 m.

SPTs230-21.2 and SPTs230-63 chain conveyers are meant for operations at highly loaded working faces with average daily output of over 5000 thousand tons of mined rock, and feature increased reserve indices of up to 7 m tons of mined rock overloaded. SPTs230-21.2 face conveyer and SPTs230-63 gate conveyer were designed and manufactured in view of proven structural solutions for similar SPTs230 conveyers operating at Sadkinskaya mine administration since 2011. The face conveyer is equipped with a new pan line on the basis of a cast wall Н=270 mm, that is lower than that in the previous SPTs230 model, which enabled use of the longwall set with KDK500 shearer and 3KD90T roof support with the lowest extracting seam thickness of 1.4 m.

3KD90Т powered roof support within the longwall complex is also customised. Its sections feature improved bearing capacity meant for unstable and heavy roof with structural disturbances. An unmatched design solution by Corum – a pressure console with a hydraulic prop – ensures efficient roof supporting at the face, and high pressing force of up to 1400 kN.