This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X215S, 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 SU50X215S is a double-acting profile-type standard cylinder with a Ø50mm bore and 215mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X215S, which matches its bore, stroke, force and mounting.
The AirTAC SU50X215S is a discontinued double-acting profile-type cylinder with a 50mm bore and 215mm stroke. Delivering 982 N push and 825 N pull at 0.5 MPa, its extruded aluminum barrel makes it shorter than an ISO 15552 unit of the same bore. The direct replacement is the SAU50X215S, matching the 1/4" port, M16x1.5 rod thread, and SC-series mounts.
Because this is an -S model, it has a piston magnet for legacy CS1-B/DS1-B switches; the SAU upgrade uses current CMSG/DMSG/EMSG sensors and adds a SAUF built-in-valve option the SU lacked. A plain cylinder drifts without live air, so use an external rod lock for holding.
| Model | Airtac SU32~50 Standard Cylinder SU50X215S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X215S |
| Bore size | Ø50 mm |
| Stroke | 215 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 SAU50X215S 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 SAU50X215S 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. |
| ×215 | 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.
Pushes medium-weight cartons off a sorting line using 982 N of thrust at 0.5 MPa, fitting neatly within existing SC-series bracket clearances.
Acts as a 215mm stroke pneumatic stop for pallets up to 50 kg, requiring an external check valve to prevent drift when air is removed.
Secures aluminum housings for machining operations, where the compact profile body saves space and the adjustable 21mm cushions decelerate the tooling.
To replace this discontinued SU50X215S, order the SAU50X215S direct equivalent, keeping the 50mm bore, 215mm stroke, 1/4" port, and SC-series mounting identical. If you need less force, a 40mm bore gives 628 N push at 0.5 MPa; for more power, a 63mm bore yields 1559 N. The -S suffix means you currently use legacy CS1-B/DS1-B switches, so you must migrate to CMSG/DMSG/EMSG sensors on the SAU. At 215mm stroke, ensure adequate guiding to prevent rod bending and side loads. This cylinder cannot hold a load without air; install a pilot-operated check valve or rod lock if needed. For self-switching, explore the SAUF variant with its built-in 4M solenoid valve.
Replacement checklist
Yes, the SU50X215S is discontinued. The direct replacement is the AirTAC SAU50X215S. It matches the 50mm bore, 215mm stroke, 982 N output force, 1/4" port, and SC-series mounting accessories. The main upgrade is that the SAU uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
This double-acting cylinder has a 1/4" air port. It delivers 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X215S replacement — usually within 7-8 hours.