delfort invests in new pressboard machine to expand its portfolio of insulation materials for the transformer industry

For more than 100 years, delfort has been a trusted partner to transformer manufacturers worldwide, providing proven electrical insulation expertise and a dependable, long‑term supply platform that supports both production continuity and customer growth. The recent investment supports the request of the global electrical insulation material demand.

Transformer manufacturers are expanding capacity to support both new grid buildouts and the replacement of aging infrastructure, further increasing demand for critical transformer components.

“This investment is a long-term commitment to the global energy sector and to the global energy transition,” says Christopher Diesen, Executive Managing Director at delfort Tervakoski, “With this new production line, we are expanding our portfolio and further supporting the industry's growth by creating additional pressboard capacity.” The investment is expected to strengthen the local economy and create new employment opportunities at the Tervakoski site. At the same time, delfort’s expansion supports global supply resilience, enabling customers to benefit from greater availability, reliable delivery, and faster realization of transformer and grid expansion projects.