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Nippon Oil Pump Co., Ltd. (NOP) is a highly distinguished Japanese manufacturer specializing in industrial pumps, hydraulic motors, and advanced fluid control equipment. Since its original founding in March 1919 (initially established under the name Kumoshita Iron Works), the company has amassed over a century of technical expertise and innovation, operating as an indispensable partner for both domestic and global manufacturing and industrial infrastructure sectors. Headquartered in Kumagaya City, Saitama Prefecture, Japan, NOP successfully integrates research and development, precision manufacturing, and comprehensive customer sales support into a unified, highly efficient operation.
The absolute cornerstone of NOP's product portfolio is the internationally recognized "Trochoid™ Pump." This internal gear pump features uniquely designed outer and inner rotors that mesh together to transfer oil exceptionally smoothly and efficiently. Renowned for its compact size, superior durability, and low noise levels, the Trochoid™ Pump commands a top-tier market share in Japan for industrial lubrication and fluid transfer applications across machine tools, construction machinery, and special-purpose vehicles. Beyond this flagship product, NOP offers a highly diversified range of specialized industrial equipment. This robust lineup includes the "Procon® Pump," a self-priming rotary vane pump for water transfer that has been fully localized in Japan through a strategic technical alliance with the US-based Procon Products; the "Orbmark® Motor," an innovative internal gear hydraulic motor that significantly boosts hydraulic efficiency based on groundbreaking new principles; and the "NOP® Filter Pump," an industry-leading coolant pump that seamlessly integrates filtration capabilities to prevent sludge accumulation in modern machine tools.
A major strategic milestone in the company's modern history occurred in 2008 when NOP consolidated six of its affiliated group companies into a single cohesive organization. This critical integration brought product development, manufacturing, and international sales functions securely under one roof, dramatically enhancing the company's organizational agility, responsiveness, and ability to provide comprehensive technical support to its diverse clientele.
Recognizing the crucial importance of an expansive global presence, NOP has aggressively accelerated its international footprint over the past two decades. The company has established a remarkably robust network of subsidiaries, branches, and representative offices in strategic industrial hubs worldwide. Today, their international locations include facilities in China (Shanghai), Taiwan, India, Germany, the United States, Vietnam, and Thailand. This extensive global network enables NOP to deliver localized sales engineering, prompt technical assistance, and highly customized fluid solutions directly to demanding manufacturing sites across Asia, Europe, and the Americas. Notably, the successful acquisition and integration of Streamware-Components OHG into its German branch in 2018 further solidified NOP's penetration into the highly competitive European industrial market.
Driven by a forward-thinking corporate philosophy that passionately emphasizes "doing things before others," "innovating where others have not," and "manufacturing quickly yet reliably," NOP continues to push the ultimate boundaries of fluid mechanics and modern pump engineering. Despite operating as a relatively lean organization with approximately 200 dedicated professionals and a paid-in capital of nearly 100 million yen, Nippon Oil Pump punches far above its weight class. By consistently delivering uncompromising Japanese quality and pioneering customized fluid control technologies, NOP has firmly solidified its esteemed position as a true global niche leader. The company remains fully committed to advancing the operational efficiency, reliability, and technological sustainability of industrial operations around the world for the next century and beyond.