Teikoku Machinery Works, Ltd.
Japanese manufacturer of centrifugal and marine pumps, producing all products in-house at its Matsusaka Factory.
Last updated September 27, 2026
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Overview
Teikoku Machinery Works, Ltd. (帝国機械製作所) is a Japanese pump manufacturer based in Osaka, Japan. The company designs and builds a broad range of pumps and related fluid-handling equipment, with a product line that includes centrifugal (volute) pumps, feed-water pumps, condenser circulating pumps, condensate and drain pumps, fire-fighting pumps, boiler-water circulating pumps, lubricating-oil pumps, LPG and VCM cargo-handling pumps, and bilge and stripping pumps, along with other specialty pumps. Its products serve industrial, power-generation, and marine applications, and the company exhibits at maritime industry events such as SEA JAPAN and Bari Ship. A defining feature of the company's manufacturing philosophy is that all of its products are produced from start to finish at its own Matsusaka Factory. The company states that it does not outsource manufacturing to any company or factory anywhere in the world, and that it does not permit third-party sale of its products. It warns customers that any products labeled as Teikoku Machinery Works products procured from a third party are counterfeit and could cause major problems, urging prompt replacement with genuine parts. On the corporate responsibility side, Teikoku Machinery Works has pursued SDG-related initiatives. It received a top-tier (A) third-party evaluation under the "Hyakugo SDGs/ESG" program run by Hyakugo Bank. Its stated commitments include compliance and risk management (including a compliance committee and an ISO promotion office, with ISO 9001 obtained in 2015), maintaining and improving a proper labor environment, and environmental measures such as progress management through environmental improvement plans, investment in clean energy via solar power generation, and thorough management of hazardous waste. The company maintains an active corporate presence through trade-show participation and customer engagement, including exhibiting at SEA JAPAN 2026, participating in a mutual study session at Sasakura Co., Ltd., and relocating its Tokyo sales office. It is registered as a company in Osaka, Japan.
History
Teikoku Machinery Works, Ltd. (帝国機械製作所) is a Japanese company registered in Osaka, Japan, engaged in the manufacture of pumps and related fluid-handling equipment. The company's public materials describe a manufacturing model centered on its Matsusaka Factory, where it states that all products are produced from start to finish. According to the company, it does not outsource manufacturing to any company or factory anywhere in the world, and it does not permit the sale of its products by third parties. It warns that products labeled as Teikoku Machinery Works products procured from third parties are counterfeit and could cause major problems, urging customers to switch promptly to genuine parts. Over time the company has built a product portfolio spanning centrifugal (volute) pumps, feed-water pumps, condenser circulating pumps, condensate and drain pumps, fire-fighting pumps, boiler-water circulating pumps, lubricating-oil pumps, LPG and VCM cargo-handling pumps, bilge and stripping pumps, and other specialty pumps. These products address industrial, power-generation, and marine applications, and the company maintains a presence in the maritime sector through trade-show participation. In the area of corporate responsibility, the company has pursued SDG-related initiatives. It received a top-tier (A) third-party evaluation under the "Hyakugo SDGs/ESG" program implemented by Hyakugo Bank. Its stated commitments include compliance and risk management — with a compliance committee and an ISO promotion office, and ISO 9001 obtained in 2015 — maintaining and improving a proper labor environment, and environmental measures such as progress management through environmental improvement plans, investment in clean energy via solar power generation, and thorough management of hazardous waste. The company continues to engage with customers and industry through events and communications. Its news updates include exhibiting at SEA JAPAN 2026 (held April 22–24, 2026), participating in a mutual study session at Sasakura Co., Ltd. on August 22, 2025, receiving Antarctic ice delivered from the icebreaker Shirase on June 9, 2025, announcing its exhibition at Bari Ship 2025 on June 5, 2025, and relocating its Tokyo sales office as announced on January 1, 2025.
Obtained ISO 9001 certification (ISO promotion office established).
Announced relocation of the Tokyo sales office.
Announced exhibition at Bari Ship 2025.
Antarctic ice delivered from the icebreaker Shirase.
Participated in a mutual study session at Sasakura Co., Ltd.
Exhibited at SEA JAPAN 2026 (held April 22–24).
Products and positioning
A Japanese pump maker emphasizing fully in-house, single-factory production at its Matsusaka Factory and warning against counterfeit parts.
Centrifugal (volute) pumps
Feed-water pumps
Condenser circulating pumps
Condensate and drain pumps
Fire-fighting pumps
Boiler-water circulating pumps
Lubricating-oil pumps
LPG and VCM cargo-handling pumps
Bilge and stripping pumps
Other specialty pumps
Sources5 sources
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