Compact Position Sensing for Pneumatic Systems: Festo SDAC-MHS
Festo’s SDAC-MHS position transmitter focuses on simplifying position sensing in compact pneumatic systems. By combining continuous measurement and switching functions in a single device, it reduce...
Position sensing in pneumatic systems often requires multiple components and wiring. Festo addresses this challenge with a compact solution designed for direct integration into existing actuator designs.
The SDAC-MHS position transmitter focuses on simplifying installation while improving accuracy in motion control applications.
SDAC-MHS position transmitter for cylinder and gripper monitoring. Image courtesy of Festo.
Compact Design for C-Slot Integration
The SDAC-MHS uses Hall-effect sensing to track piston movement inside pneumatic cylinders. It mounts directly into a C-slot, allowing non-contact detection of position through magnetic field variation.
This design removes the need for bulky external sensors. It also preserves the full motion range of the actuator, which is critical in compact automation systems.
Compared to traditional setups, the reduced size helps maintain payload efficiency in robotic grippers and small motion assemblies.
Replacing Multiple Components with One Device
The transmitter can function as both a continuous position sensor and dual switching outputs. In many applications, this replaces two proximity switches and their wiring.
This approach reduces installation time and simplifies maintenance. It also lowers the risk of wiring errors in dense control panels.
Flexible Output and Integration
The SDAC-MHS supports multiple output formats, including digital switching signals and analog 0–10 V output. IO-Link versions allow parameter configuration and diagnostics through a single cable.
This flexibility makes integration easier across different control architectures, including PLC-based automation systems.
High Resolution and Application Fit
The sensor provides position resolution down to 0.05 mm. This level of precision supports applications that require repeatable motion control, such as pick-and-place operations.
Available variants include different sensing ranges, protection ratings, and cable configurations. This allows adaptation to both clean environments and harsher industrial conditions.
Available sensing ranges for SDAC-MHS transmitter. Image courtesy of Festo.
Where This Fits in Modern Automation
Compact sensing solutions like the SDAC-MHS reflect a broader trend toward integration and simplification in automation design.
Instead of adding components, engineers increasingly look for ways to combine sensing, control, and communication into fewer devices.
This not only reduces hardware complexity but also improves system reliability over time.
Author: Daniel Mercer
Position: Industrial Automation Specialist
Experience: 12+ years in motion control systems, pneumatic automation, and sensor integration for manufacturing environments.