Keyence Brings Smarter Pneumatic Control With CS/SP Series

The CS/SP Series, Keyence’s latest pneumatic control platform, combines a smart cushion valve, a linear cylinder sensor, and a modular smart valve manifold. This design aims to improve machine performance, simplify installation, and give users more information about pneumatic operations. The lineup includes the CS-L Linear Cylinder Sensor, SP-C Smart Cushion Valve, and SP-N/V Smart Valve Manifold. Together, these products offer continuous piston position monitoring, smart airflow control, easier wiring, and built-in diagnostics. This reduces downtime and increases reliability.

The new lineup in the CS/SP Series pneumatic platform. Image used courtesy of Keyence

A New Approach to Pneumatic Position Sensing

The CS-L Linear Cylinder Sensor tracks piston movement throughout the entire cylinder stroke, unlike traditional magnetic switches that only detect the ends of the stroke. Its full-length LED indicator provides real-time visualization of the piston’s position, simplifying installation and troubleshooting for both operators and maintenance personnel. To set up the sensor, users press a button at the desired piston position to configure output points rather than making manual adjustments. The sensor can be installed from the top without removing the cylinder, saving time. In addition to position detection, it provides cylinder performance data such as stroke timing and impact. This helps engineers identify mechanical issues before they lead to failures.

The new smart cushion valve features two internal flow paths for shock absorption. Image used courtesy of Keyence

Intelligent Cushioning Without Mechanical Wear

The SP-C Smart Cushion Valve lets the cylinder move faster while reducing impact at the end of each stroke. It uses piston position data from the CS-L sensor to automatically switch between fast airflow and slowing down. This means cylinders move quickly for most of the stroke and slow down just before the end, which reduces shock to the cylinder, machine, and workpiece.

The SP-C uses pneumatic cushioning instead of mechanical parts to absorb impact, so it lasts longer than traditional shock absorbers. Setting up the valve takes only four steps and requires no extra software or tools. Keyence also included Automatic Stroke Control (ACS), which maintains stroke times by compensating for changes in air pressure, seal wear, load, or temperature. The system automatically changes deceleration timing to keep strokes consistent and reduce impact.

The SP-N/V Smart Valve Manifold lets users set up pneumatic valve systems in a modular way. Image used courtesy of Keyence

Flexible Valve Manifold Design

The new modular SP-N/V Smart Valve Manifold lets users choose different valve types and sizes, and add more valves later without changing the original manifold. Each valve has its own M8 connector for direct connection to cylinder sensors, reducing wiring and the need for extra I/O blocks. Sensor data is routed through the communication unit, streamlining PLC integration and minimizing programming requirements. The unit supports many industrial protocols, such as EtherNet/IP, PROFINET, IO-Link, MC Protocol/SLMP, and Modbus/TCP, so it works with a wide range of automation platforms.

Built-in Monitoring and Predictive Maintenance

The CS/SP Series includes software that helps with setup and ongoing maintenance. With the built-in web server or control panel, engineers can monitor cylinder operation remotely, configure sensor outputs, test valves, and review system diagnostics. The software sends predictive maintenance alerts based on valve and cylinder usage, so teams can replace parts before they fail. Error diagnostics show where and why faults occur, saving troubleshooting time and reducing downtime. Graphical feedback lets operators check cylinder speeds and adjust flow control using live performance data.

Industrial manufacturers need pneumatic solutions that keep machines running reliably and reduce maintenance. Pneumatic systems now have to do more than just basic actuation. The CS/SP Series addresses this demand by integrating sensing, smart valve control, diagnostics, and networking into a single, unified platform.