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Overview

Nagaoka International Corporation manufactures internals for petrochemical plant reactors, groundwater intake equipment, and water treatment systems. The company operates factories in Japan and China, with offices in Tokyo and Osaka, positioning it as a specialized engineering firm in industrial equipment.¹³⁸

History

Founded on October 10, 1934, as Nagaoka International Corporation. It maintains facilities including a head office in Osaka, Himeji Factory, R&D Center in Kaizuka, and overseas manufacturing in Dalian, China. The company focuses on sectors like water, energy, and plant equipment.¹

Product Lines

Product Line	Positioning	Price Range
Reactor Internals	Components for petrochemical plants	$10,000 - $500,000
Groundwater Intake Equipment	Systems for water extraction	$5,000 - $100,000
Water Treatment Screens	Filtration for environmental applications	$1,000 - $50,000
Plant Equipment	Custom engineering solutions	$20,000 - $200,000

Manufacturing

Products are manufactured at facilities in Japan, including Himeji Factory and Edogawa Factory, with additional production at Nagaoka Equipment (Dalian) Co., Ltd. in China. In-house production covers design, engineering, and assembly.¹

Notable Products

Nagaoka Screens - Filtration screens for water intake and treatment.
Reactor Internals - Components installed in petrochemical reactor cores.
Groundwater Intake Systems - Equipment for environmental water extraction.
Plant Equipment Modules - Custom parts for energy and industrial plants.

Reputation

Perceived as a reliable supplier of specialized industrial components by engineering professionals. Strengths include in-house manufacturing and global network; limited public visibility outside B2B sectors.¹⁸