This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X30CA, 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 Airtac SU32~50 Standard Cylinder SU50X30CA is a double-acting profile-type standard cylinder with a Ø50mm bore and 30mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X30CA, which matches its bore, stroke, force and mounting.
The AirTAC SU50X30CA is a discontinued double-acting profile-type cylinder with a 50mm bore and 30mm stroke. Built with an extruded aluminum barrel, it is shorter and more compact than an ISO 15552 cylinder of the same bore, delivering 982 N push force at 0.5 MPa via a 1/4" port. AirTAC replaced this end-of-life unit with the SAU50X30CA, a direct replacement retaining the exact bore, stroke, force, port, and SC-series CA mounting.
When upgrading to the SAU, your CA mounting hardware and 1/4" pneumatic plumbing stay the same. Note this specific SKU lacks a magnet (-S), so it cannot accept a sensor. If sensing is needed on the new SAU, you will use the current CMSG/DMSG/EMSG switches rather than the legacy CS1-B/DS1-B, and the SAUF variant offers a built-in valve the SU never had.
| Model | Airtac SU32~50 Standard Cylinder SU50X30CA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X30CA |
| Bore size | Ø50 mm |
| Stroke | 30 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 SAU50X30CA 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 SAU50X30CA 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. |
| ×30 | 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.
Ideal for holding parts during machining with a 30mm stroke, utilizing the 982 N push force at 0.5 MPa to secure workpieces firmly.
Compact 50mm bore profile body fits tight transfer lines, providing rapid 30mm actuation to push cartons between adjacent belts.
To replace this SU50X30CA, order the SAU50X30CA. Confirm the 50mm bore, 30mm stroke, 1/4" port, M16x1.5 rod thread, and the CA clevis mount interface. Because this SKU has no -S magnet, it cannot accept a position sensor; if your application now requires sensing, specify an SAU50X30CAS and migrate to CMSG/DMSG/EMSG switches. Size both ways: dropping to a 40mm bore yields 628 N push at 0.5 MPa, while stepping up to a 63mm bore provides 1559 N. Remember that a plain cylinder drifts on air loss—the cushion only decelerates near stroke end—so fit an external rod lock or pilot-operated check valve for held loads. For higher flow control, the SAUF variant integrates a 4M solenoid valve directly on the body.
Replacement checklist
Yes, the SU50X30CA is discontinued. The direct replacement is the SAU50X30CA. It shares the same 50mm bore, 30mm stroke, 982 N output force, 1/4" port, and SC-series CA mounting accessories, so it fits the same application without mechanical changes.
At 0.5 MPa it provides 982 N push and 825 N pull; 1374 N push at 0.7 MPa; and a theoretical max of 200 kgf at 1.0 MPa. This specific SKU lacks a magnet, so it cannot accept a sensor. If you need position detection on the SAU replacement, order the -S version and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X30CA replacement — usually within 7-8 hours.