Originally named NABCO Ltd. (established in 1925 as Japan Air Brake Co., Ltd.), it is a major Japanese gear pump manufacturer that primarily produces NABCO gear pumps. Gear pumps are primarily used to provide consistent hydraulic power and fluid transmission for heavy machinery. Their application scope covers the fields of construction, automotive, and industrial manufacturing Nabco pumps are the foundation for operating hydraulic arms, buckets, and tracks of excavators and loaders in engineering machinery equipment. Supporting equipment includes Shengang cranes/loaders/excavators, Mitsubishi cranes/drilling rigs, etc. It is also widely used in automotive systems, material handling, agricultural equipment, marine and offshore deck machinery, etc. In 2003, after collaborating with various entities of Mitsubishi Group, the NABCO gear pump nameplate was changed to Mitsubishi brand.