Order Received for Main Drainage Pump Renewal at Namura Shipbuilding Imari Shipyard [Orders Received in October 2025]

Namura Shipbuilding Co., Ltd. has been a prominent ship and bridge manufacturer since its founding in 1911. The Japanese shipbuilding industry maintained a high global market share for many years, driven by the demand for large tankers starting in the late 1960s. In 1974, Namura Shipbuilding established its Imari Shipyard to accommodate increasingly large vessels. At that time, Torishima’s vertical mixed-flow pumps were selected for the dock’s drainage system.

Dock drainage pumps are essential infrastructure for building and repairing ships. By quickly discharging seawater from the dock, they ensure safety and efficiency in the work process. The main drainage pumps delivered to the Imari Shipyard have supported stable operations for approximately 50 years since the shipyard opened.

This renewal project addresses equipment aging after long years of operation. While the original configuration used a gearbox between the motor and pump, we proposed a direct-coupling design that eliminates the gearbox. This simpler configuration is
expected to reduce maintenance labor and lower running costs.

Upgrading to the latest technology improves equipment performance and contributes to a better workplace environment and operational stability. Torishima remains committed to providing optimal solutions by considering the entire lifecycle of the
equipment.