Businesses dealing in machinery for mining supply equipment used to extract, move and process minerals, ores and other geological materials. This can include drilling and boring rigs, rock-cutting machines, underground and surface loaders, haulage vehicles, crushing and screening plant, conveyors, pumps and mineral-processing equipment. Some suppliers specialise in particular stages of mining, while others provide a wider range of machinery for mines, quarries and related operations. Customers may also find replacement parts, equipment installation, inspections, repairs and maintenance, as well as refurbishment or adaptation of machinery for specific site conditions. Some businesses offer machinery for hire or provide technical support and operator training. Equipment can be designed for underground use, where space, ventilation and safety requirements differ from those at surface sites, or for open workings that handle larger volumes of material.