This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X180TC, 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 SU50X180TC is a double-acting profile-type standard cylinder with a Ø50mm bore and 180mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X180TC, which matches its bore, stroke, force and mounting.
The AirTAC SU50X180TC is a discontinued double-acting profile-type cylinder with a 50mm bore and 180mm stroke. It delivers 982N push force at 0.5MPa via a 1/4" port. AirTAC replaced this unit with the SAU50X180TC, a direct upgrade retaining the exact body, stroke, force, port and TC mounting interface.
Because this specific SKU lacks a magnet, it cannot accept a sensor. The SAU replacement also omits sensing unless ordered with -S, but if you do upgrade to a magnet version, note that sensors change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG.
| Model | Airtac SU32~50 Standard Cylinder SU50X180TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X180TC |
| Bore size | Ø50 mm |
| Stroke | 180 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 SAU50X180TC 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 SAU50X180TC 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. |
| ×180 | 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.
Drives a diverting arm on a packaging line, using the 982N push force to redirect cartons at speed without bouncing.
Opens and closes low-profile pallet gates where the compact profile body saves space compared to standard ISO cylinders.
To replace this discontinued SU50X180TC, order the SAU50X180TC. Confirm the 50mm bore, 180mm stroke, 1/4" port with M16x1.5 rod thread, and TC mounting. This non-magnetic SKU cannot take a switch; if you need sensing on the SAU, add -S and use CMSG/DMSG/EMSG sensors. The SAUF variant adds a built-in valve the SU lacked. Downsize to a 40mm bore for lighter loads, or upsize to 63mm (1559N push at 0.5MPa) if you need more force. Plain cylinders drift without air; use an external rod lock for held loads. At 180mm stroke, side-load rod-bending is low, but ensure guide alignment.
Replacement checklist
Yes, the SU50X180TC is discontinued. The direct replacement is the SAU50X180TC. It matches the 50mm bore, 180mm stroke, 982N force, 1/4" port and TC mounting, so it fits the same application.
At 0.5MPa it pushes 982N and pulls 825N. It pushes 1374N at 0.7MPa, 1767N at 0.9MPa, with a 200kgf max at 1.0MPa. The cushion only decelerates; without live air the piston drifts, so use a rod lock for holding.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X180TC replacement — usually within 7-8 hours.