GROB-WERKE (GROB-WERKE GmbH & Co. KG) is a German family-owned precision machinery company founded in 1926, supplying automated production lines that span prismatic and cylindrical battery cell stacking, welding, and testing through to module and pack assembly.
1. Company Overview
- Company name: GROB-WERKE GmbH & Co. KG
- Founded: 1926
- Headquarters: Mindelheim, Bavaria, Germany
- Ownership: family-owned company
- Production sites: 4 continents, including the US, Brazil, China, India, Germany, and Italy
2. History and Personnel
Founded in 1926, the nearly century-old family company was originally a leader in precision machining. It has since expanded into electric motor (e-motor) production equipment and automated battery module/pack assembly lines, and in 2023 announced a battery cell production concept factory jointly with Germany’s Dürr, incorporating integrated wet/dry coating and notching Z-folder technology.
The company is a global family business operating production facilities on 4 continents — the US, Brazil, China, India, Germany, and Italy. Detailed personnel composition is (undisclosed).
3. Core Technology and Key Equipment
The company has developed automated production systems in-house for stacking, welding, and testing of prismatic and cylindrical cells, and for module/pack assembly, and also holds electrification component production technology such as needle winders for electric motors and trickle cells (integrated robotic-gripper-based trickle-impregnation and gelling process).
- Battery module assembly systems — stacking, welding, and testing of prismatic and cylindrical cells
- Electric motor stator/rotor winding and insertion technology (needle winders, etc.)
- Trickle cells — integrated robotic-gripper-based trickle-impregnation and gelling process
- Battery cell concept factory co-developed with Dürr (wet/dry coating + Z-folder)
4. Production Infrastructure and Quality Assurance
Through production facilities on 4 continents, the company supplies turnkey production lines to automotive and electrification component manufacturers. Detailed factory floor area and capacity are (undisclosed).
5. Delivery Track Record and Partnerships
The company’s joint development of a battery cell concept factory with Dürr has been publicly disclosed. Individual contracts with battery cell manufacturers are (undisclosed).
6. Financial Status and Roadmap
As a family-owned, unlisted company, financial figures such as revenue are (undisclosed).
The company is expanding its partnership with Dürr to commercialize a next-generation battery cell production concept based on Z-folder technology integrating wet/dry coating and notching.
This profile was compiled from publicly available sources including Battery-Tech Network, Charged EVs (chargedevs.com), and the company’s website (grobgroup.com); unverified figures and non-public information have not been arbitrarily included.