Airtac CS1-U – Reliable Magnetic Reed Switch for Standard Cylinders
Looking for a durable magnetic reed switch to detect piston position on standard pneumatic cylinders? The Airtac CS1-U is a classic sensor from Taiwan’s leading pneumatic brand, designed for SC, SU, and SI series cylinders.
The CS1-U is a contact-type Reed sensor with normally open (NO) contacts and a 2-core cable. It detects piston position via the built-in magnet and is simple, reliable, and easy to install.
Key Features of Airtac CS1-U
✅ Contact Reed Switch, Normally Open (NO).
✅ Wide operating voltage: 5V – 240V AC/DC.
✅ Max switching current 100mA, contact rating 10W.
✅ Red LED indicator for status monitoring.
✅ IP67 protection against dust and water.
✅ Suitable for SC, SU, SI, and MA50/63 cylinders.
✅ Easy mounting on the cylinder body.
Technical Specifications
✅ Model: CS1-U
✅ Sensor Type: Reed Switch (contact type)
✅ Switch Logic: SPST Normally Open (NO)
✅ Operating Voltage: 5V – 240V AC/DC
✅ Max Switching Current: 100mA
✅ Contact Rating: 10W max
✅ Voltage Drop: ≤ 2.5V @ 100mA DC
✅ Sensitivity: approx. 60 Gauss
✅ Max Switching Frequency: 200Hz
✅ Operating Temperature: -10 ~ 70°C
✅ Protection Class: IP67
✅ Indicator: Red LED
Typical Applications
✅ End-of-stroke or intermediate position detection on SC, SU, SI cylinders
✅ Automation systems, packaging, and assembly machines
✅ Production lines requiring position feedback
✅ Industrial robots and equipment
✅ Maintenance and replacement of older CS1 sensors
Why Choose the Airtac CS1-U?
The CS1-U offers a wide voltage range, simple structure, and high durability. It is a reliable choice for accurate position sensing on previous-generation Airtac standard cylinders.
Note: The CS1 series has been gradually replaced by the newer CMS/DMS series. For new systems, consider upgrading to CMSG or DMSG sensors for better long-term availability.
Selection & Installation Tips
✅ Mount the sensor into the groove on the cylinder body with a magnet.
✅ Ensure the installation position is within the magnetic field of the piston.
✅ Connect the wires with correct polarity.
✅ Check that the LED lights up when the piston passes the sensing area.
Hotline: 0084 787900099
