Keyence Adds Smart Position and Cushion Control to Pneumatic Systems
Keyence has introduced a new smart pneumatic platform designed to give machine builders greater visibility and control over pneumatic cylinders. The system combines the CS-L linear cylinder sensor, SP-C smart cushion valve, and SP-N/V smart valve manifold into a connected architecture for position monitoring, controlled deceleration, and predictive maintenance.
The CS-L provides continuous piston-position feedback rather than relying only on conventional end-of-stroke sensors. Its full-length bar LED displays piston movement with 1 mm resolution, giving technicians a direct visual indication during machine setup and troubleshooting.
The sensor uses a two-point teach process and can be installed from the top of the cylinder slot without removing the cylinder. It also provides piston position, impact level, and stroke-time information, creating additional data that can be used for machine diagnostics.
The SP-C smart cushion valve uses this position information to manage cylinder movement. It provides separate high-speed and deceleration flow paths, allowing the cylinder to operate quickly through most of its stroke before automatically slowing near the end position.
This approach is intended to reduce the mechanical shock associated with high-speed pneumatic motion. Keyence also describes an automatic stroke-control function that adjusts the cushion-start position when cylinder speed changes, helping maintain consistent deceleration under varying operating conditions.
The third component, the SP-N/V smart valve manifold, brings the pneumatic data into the machine network. Operators can monitor cylinder strokes, sensor values, operating conditions, errors, and maintenance information through the system interface.
Communication is available through EtherNet/IP, PROFINET, Modbus/TCP, and IO-Link, allowing the pneumatic system to integrate with common industrial control architectures.
The design also reduces conventional wiring. Sensor signals can connect directly to the SP-V valve through M8 connectors, while the communication unit collects the data and transfers it to the controller. This eliminates the need for separate external I/O wiring for every sensor signal.
For machine builders, the combination is particularly relevant to high-cycle equipment where pneumatic cylinders operate rapidly and repeatedly. Packaging, assembly, material handling, and automated production machinery can benefit from faster motion while maintaining controlled end-of-stroke behavior.
More importantly, Keyence is adding diagnostic data to pneumatic components, turning traditionally difficult-to-monitor cylinder movements into measurable machine information. Position, impact, and stroke-time data can help maintenance teams identify abnormal operation before it develops into a larger mechanical problem.
The system reflects a broader move toward smart pneumatic automation, where sensors, valves, controllers, and industrial networks work together rather than operating as isolated components.
For OEMs looking to improve cycle time, reduce impact-related wear, simplify wiring, and gain better visibility into pneumatic equipment, the CS-L, SP-C, and SP-N/V combination provides a more connected approach to cylinder control.