This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X230S, 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 SU50X230S is a double-acting profile-type standard cylinder with a Ø50mm bore and 230mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X230S, which matches its bore, stroke, force and mounting.
The AirTAC SU50X230S is a discontinued double-acting profile-type cylinder with a 50mm bore and 230mm stroke. Built with an extruded aluminum barrel and adjustable air cushions at both ends, it is more compact than an ISO 15552 cylinder of the same size. The direct replacement is the SAU50X230S, matching the bore, stroke, 1/4 inch port, and SC-series mounting.
Upgrading to the SAU50X230S preserves the physical footprint and force but requires a sensor family change: the SU -S magnet worked with legacy CS1-B/DS1-B switches, whereas the SAU uses current CMSG/DMSG/EMSG sensors. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU series never had. Note that a plain cylinder does not hold load without live air; the cushions only decelerate.
| Model | Airtac SU32~50 Standard Cylinder SU50X230S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X230S |
| Bore size | Ø50 mm |
| Stroke | 230 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 SAU50X230S 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 SAU50X230S 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. |
| ×230 | 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 cartons laterally on a sorting line using the 982 N push force at 0.5 MPa, with the 230mm stroke clearing conveyor frames.
Acts as a pneumatic stop for inbound pallets, safely decelerating loads via the adjustable 21mm cushions at both ends.
To replace this SU50X230S, order the SAU50X230S. Verify your 1/4 inch port threads (PT, G, or NPT) and SC-series mounting accessories, which remain identical. Because this SKU includes the -S magnet, you must upgrade your legacy CS1-B/DS1-B switches to the CMSG/DMSG/EMSG family. For sizing alternatives, a neighboring 40mm bore provides 628 N push at 0.5 MPa, while a 63mm bore offers 1559 N. At 230mm stroke, ensure adequate guide support to prevent rod bending and side-load wear. If you need intermediate stopping, the SAUF built-in valve variant offers self-switching, but for true load holding on air loss, install an external rod lock or pilot-operated check valve.
Replacement checklist
Yes, the AirTAC SU50X230S is discontinued. The direct replacement is the SAU50X230S. It offers the same 50mm bore, 230mm stroke, output force, 1/4 inch port, and SC-series mounting compatibility, so it fits the same application directly.
The 50mm bore provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical max of 200 kgf at 1.0 MPa. Because this is an -S magnet model, it used legacy CS1-B/DS1-B switches; the SAU50X230S replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X230S replacement — usually within 7-8 hours.