Sumitomo Heavy Industries

Sumitomo Heavy Industries, Ltd. (住友重機械工業株式会社) (SHI) is an integrated manufacturer of industrial machinery, automatic weaponry, ships, bridges and steel structure, equipment for environmental protection, including recycling, power transmission equipment, plastic molding machines, laser processing systems, particle accelerators, material handling systems, cancer diagnostic and treatment equipment and others.

History
In 1888, a company was formed to provide equipment repair services to the Besshi copper mine. Almost 50 years later, in 1934, the company incorporated as Sumitomo Machinery Co., Ltd. to manufacture machinery for the steel and transportation industries in support of that period of rapid economic growth.

In 1969, Sumitomo Machinery Co., Ltd. merged with Uraga Heavy Industries Co., Ltd. to create Sumitomo Heavy Industries, Ltd. The company continues to innovate and expand to meet the demands of the new market frontiers. Today, Sumitomo Heavy Industries manufactures injection molding machines, laser systems, semiconductor machinery and liquid crystal production machinery.

In 1979, the company famously built the Seawise Giant, an Ultra Large Crude Carrier (ULCC) supertanker; the longest ship ever built.

In 2021, it was reported that SHI has ceased making light machine guns for the JSDF, citing a bleak economic prospects in the arms sector.

Scandals
In 2013, SHI was reported to have falsified test data related to the manufacture of its machine guns. SHI was fined 62,474,916 Yen and was given a five-month suspension.

Products

 * Sumitomo NTK-62 Machine gun
 * Seawise Giant, the largest ship ever built
 * Excavator, OEM Suppliers of Case and Link-belt
 * Paver
 * Gear reducers & Electric Motors