Press Kogyo Adds Flexible Truck Frame Production Line

Press Kogyo Establishes Integrated Production Line

Press Kogyo has established a new integrated production line at its Utsunomiya Plant for side members used in structural frames for heavy- and medium-duty trucks. The investment is part of initiatives outlined in the company's medium-term business plan covering FY2024 through FY2028. Side members are critical structural components because the truck frame supports the full weight of the vehicle. The new manufacturing setup is designed to strengthen production flexibility while improving the company's ability to address varying customer requirements and production conditions.

Flexible Forming Supports High-Mix Production

The new line allows Press Kogyo to select between a press forming machine and a roll forming machine incorporating its proprietary technologies. The appropriate process can be chosen according to product specifications and production volume, giving the company greater flexibility across different manufacturing requirements. This capability is intended to improve responsiveness to customer needs while strengthening competitiveness in high-mix, low-volume production. By integrating the forming options into a single production line, the Utsunomiya Plant can adapt manufacturing processes more effectively to changes in product requirements and production volumes.

Shot Blasting Equipment Enhances Surface Preparation

The company has also installed new shot blasting equipment as part of the production-line investment. The equipment removes oxide film from steel surfaces and prepares those surfaces for subsequent coating processes, supporting improved product quality and appearance. The additional equipment complements the forming capabilities of the integrated line by addressing an important stage in side-member manufacturing. Together, the forming and surface-preparation capabilities are intended to enhance production performance while maintaining the quality requirements associated with structural components used in Japan's heavy- and medium-duty truck manufacturing sector.

Mass Production Began Through Phased Launch

Mass production using the new manufacturing setup began in phases from October 2025 through August 2026. The phased start indicates that the production capabilities were introduced progressively rather than becoming operational at a single point in time. The completed line now combines flexible forming options with newly installed shot blasting equipment at the Utsunomiya Plant. The investment therefore represents a manufacturing capability expansion under the FY2024-FY2028 medium-term business plan, with the production system positioned to support changing specifications and volumes for structural truck-frame side members.

Industry Impact & Outlook

The investment strengthens manufacturing flexibility for structural truck components by allowing production processes to be selected according to specifications and volume, an approach that can be particularly relevant in high-mix, low-volume manufacturing. For commercial vehicle suppliers, the ability to accommodate different production requirements while maintaining surface preparation and product quality can support more responsive customer programs. The Utsunomiya Plant's completed capabilities also provide a practical foundation for the next phase of the company's medium-term manufacturing initiatives. Future significance will depend on how effectively the flexible line is utilized across customer requirements and production volumes.

Frequently Asked Questions

What is the new Press Kogyo production line designed to manufacture?
The new integrated line is designed to manufacture side members used in structural frames for heavy- and medium-duty trucks, with production based at the Utsunomiya Plant. It can use either press forming or roll forming depending on product specifications and production volume. The company also added shot blasting equipment to remove oxide film from steel surfaces before coating. This combination is intended to improve production flexibility, support customer requirements, strengthen competitiveness in high-mix, low-volume manufacturing, and enhance the quality and appearance of the finished structural components.