Bühler Group (Bühler AG) is a roughly 160-year-old family company headquartered in Uzwil, Switzerland, that holds continuous battery slurry mixing technology adapted from its food extruder technology.
1. Company Overview
- Company name: Bühler AG (Bühler Group)
- Headquarters: Uzwil, Switzerland
- Business area: Grinding & Dispersing (wet grinding/dispersion) within the Advanced Materials division — includes battery solutions
- Ownership: Family-owned company
- Employees/capital: (undisclosed)
2. History and Workforce Status
With roughly 160 years of history as a family company, it has long accumulated twin-screw extruder technology for food and feed processing. About 10 years ago, it began experimenting with applying this extruder technology to battery electrode slurry, launching its Battery Solutions business.
The Grinding & Dispersing division belongs to the group’s Advanced Materials segment, and the division’s revenue is presented at approximately CHF 100 million (division-level, not group-wide). Detailed workforce composition is (undisclosed).
3. Core Technology and Major Equipment
The core technology integrates raw material metering/feeding, pre-mixing, kneading, fine dispersion, and degassing into a single continuous process based on a twin-screw mixer. Its inline quality control system, QuaLiB, monitors process parameters in real time.
- Continuous twin-screw electrode slurry mixing line
- QuaLiB — inline quality control/monitoring system
- Wet grinding (bead mill) technology — for active material, precursor, and separator materials
4. Production Infrastructure and Quality Assurance
The company operates battery application labs (Application Centers) in Switzerland, China, and Japan, with the Grinding & Dispersing application center and battery lab co-located at its Uzwil, Switzerland headquarters. Individual plant capacity figures are (undisclosed).
5. Delivery Track Record and Partnerships
As of February 2026, the company has supplied 113 complete production systems (for battery slurry and dry compounds) worldwide over the past decade, more than 70 of which went to China. Disclosed customer references include Germany’s Fraunhofer FFB, the UK’s UKBIC, Italy’s FIB S.p.A., and China’s Lishen.
6. Financial Status and Roadmap
Because the group’s business is diversified across divisions, this profile does not specify group-wide revenue or financial figures individually. The company discloses that its continuous mixing process uses approximately 56 kWh to produce one ton of slurry, cutting energy use by about four times compared to conventional methods.
The company is expanding its battery solutions supply chain into Europe and North America, and through its partnership with Fraunhofer FFB is broadening its supply scope to include large-scale (93 mm) extruders and raw material handling, storage, and metering systems.
This profile was written based on publicly available sources including the company newsroom (buhlergroup.com), LinkedIn, and EV Tech Insider. Unverified figures and undisclosed information were not arbitrarily included.