A company's essence - the seal it places on its products, services, and the industry in which it operates - is formed and refined in the crucible of time.. longwall shearers,roof supports,face conveyors,stageloaders,continuous miners,batch haulage vehicles (shuttle cars and battery haulers),continuous haulage systems (continuous chain haulage and flexible conveyor train),feeder breakers,and bolting products (mobile,onboard and portable) for use in longwall and room and pillar mining operations.