This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X380S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.

The AirTAC SU32~50 Standard Cylinder SU50X380S is a double-acting profile-type standard cylinder with a Ø50mm bore and 380mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X380S, which matches its bore, stroke, force and mounting.
The AirTAC SU50X380S is a discontinued double-acting profile-type cylinder with a 50mm bore and 380mm stroke. It delivers 982N push force at 0.5MPa via a 1/4" port. AirTAC replaced this unit with the SAU50X380S, a direct alternative retaining the exact bore, stroke, force, and SC-series mounting footprint.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B switches used on this -S model, and adds a SAUF built-in-valve option. Note that standard cylinders drift without live air; use an external rod lock for holding.
| Model | Airtac SU32~50 Standard Cylinder SU50X380S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X380S |
| Bore size | Ø50 mm |
| Stroke | 380 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU50X380S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X380S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×380 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Actuates routing gates on packaging lines using the 982N push force, with the 380mm stroke providing full lane clearance.
Lowers lightweight material stops up to 50kg safely, though an external check valve is required to prevent drifting on air loss.
Cycles safety interlocks and access doors, utilizing the compact profile body to fit within tight machine frames.
To replace the SU50X380S, order the SAU50X380S. Verify your 1/4" port, M16x1.5 rod thread, and SC-series mounts (LB/FA/FB/CA/CB) carry over directly. Because this is a -S model, you must upgrade your position sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches. If you need integrated flow control, explore the SAUF variant with its built-in 4M solenoid valve. For the 380mm stroke, support side loads with an external guide to prevent rod bending. The cylinder does not hold load without air; add a pilot-operated check valve for vertical applications. If you need more force, the 63mm bore yields 1559N push at 0.5MPa.
Replacement checklist
Yes, the SU50X380S is discontinued. The direct replacement is the AirTAC SAU50X380S. It provides identical bore, stroke, force, 1/4" port, and SC-series mounting compatibility, ensuring a seamless swap.
It delivers 982N push and 825N pull at 0.5MPa, 1374N at 0.7MPa, and a theoretical max of 200kgf at 1.0MPa. Because this is a -S model, the legacy CS1-B/DS1-B sensors must be replaced with CMSG/DMSG/EMSG switches on the new SAU unit.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X380S replacement — usually within 7-8 hours.