BM‑Rosendahl supplies European‑built battery production lines and machines for lead‑acid, lithium‑ion and sodium‑ion cells, offering pilot lines, laser welding, automated stacking and inline optical inspection for EV, traction and stationary ESS.
BM-Rosendahl, a division of Rosendahl Nextrom headquartered in Pischelsdorf am Kulm, Austria, supplies automated battery production equipment for lead‑acid, lithium‑ion and sodium‑ion technologies. The business draws on more than 50 years of machinery experience and operates within the KNILL Gruppe (owner since 1997). BM‑Rosendahl designs and delivers custom production lines, assembly modules and testing systems for automotive, industrial traction, motorcycle and stationary energy storage markets. Its mission is to provide sustainable, high‑quality manufacturing solutions that scale from pilot cells to gigafactory throughput.
BM‑Rosendahl develops modular assembly and finishing technologies for battery module and pack production. Core capabilities include precision laser welding, automated stacking and strapping, gluing, bolting, cell preparation and camera‑based inline optical inspection with tablet‑guided operator interfaces. Lines support prismatic, pouch and cylindrical formats for lead‑acid, lithium‑ion and sodium‑ion chemistries and can scale to roughly 1 GWh per year. R&D labs optimize welding parameters and perform destructive and non‑destructive testing. Integrated software provides process traceability, in‑line fault correction and improved yield while reducing material waste and energy use.
BM‑Rosendahl supplies complete production lines and standalone machines: lead‑acid enveloping, stacking, sleeving and cast‑on‑strap systems; lithium‑ion stacking, laser welding, compressing, gluing, screwing and module assembly stations; manual workplaces, component testing and product evacuation systems. Offerings include pilot lines and custom European‑built solutions for automotive and e‑mobility, industrial traction, motorcycle batteries and stationary energy storage applications.
BM‑Rosendahl is owned by Rosendahl Nextrom GmbH and operates within the family‑owned KNILL Gruppe. The company is part of a privately held industrial group with no public shareholders or external venture funding identified. Ownership supports decentralized operations and cross‑division collaboration across battery, cable and optical fiber manufacturing technologies. BM‑Rosendahl participates in EU initiatives such as IPCEI and EuBatIn, aligning its development with European industry cooperation and funding programs.
