s-mix is Sauter GmbH's process control platform for ready-mix concrete production, developed over five decades of specialization in construction materials automation. It controls the complete batching and mixing sequence — aggregate feeding, cement and binder injection, water dosing, admixture dispensing, and mixing time — with full plant visualization for the operator. The system is calibratable, meeting weights-and-measures requirements for trade-approved concrete production, and supports three selectable operating modes: fully automatic recipe-driven production, semi-automatic with operator confirmation at key steps, and full manual control for maintenance or special mixes.

How does the modular architecture scale from small mobile plants to multi-mixer sites?

The s-mix platform is not a single hardware SKU but a configurable control system assembled from program modules to match the plant's physical layout and production requirements. A small mobile batch plant may run s-mix on a compact controller managing a single mixer, two aggregate bins, and a cement silo. A large stationary plant with multiple mixers, dozens of aggregate storage compartments, multiple cement types, and separate admixture dosing stations runs the same software platform on appropriately scaled hardware with additional I/O and networking. The modular architecture also enables retrofitting — older plants can be upgraded module by module, adding s-cons consistency measurement or s-visco water control without replacing the entire control system.

What quality and sustainability benefits do the add-on modules provide?

The s-cons module measures fresh concrete consistency in real time inside the mixer and adjusts water content to maintain the target slump or flow class, reducing rejected loads and manual slump testing. s-visco provides precise water dosing with w/c ratio monitoring, critical for high-strength and durability-specified concrete. Integrated humidity sensors in aggregate bins compensate for moisture content in sand and gravel, preventing excess water from being added unknowingly. On the sustainability side, precise dosing reduces cement overuse — the largest carbon contributor in concrete — and the system's connectivity to external AI/process mining platforms like Alcemy enables predictive quality models that learn from production data to further optimize mix designs and reduce embodied CO₂ per cubic metre.