This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X30-20S, 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 SUJ Adjustable Cylinder SUJ32X30-20S is a double-acting profile-type standard cylinder with a Ø32mm bore and 30mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ32X30-20S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X30-20S is a discontinued double-acting double-rod profile cylinder with a 32mm bore and 30mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 20mm on-site, yielding a usable 10-30mm stroke window. This compact extruded-aluminum barrel is shorter than an ISO 15552 unit of the same bore. The direct replacement is the SAUJ32X30-20S, which retains the exact bore, stroke, force, port, and FA/LB mounting.
The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors, whereas this legacy SUJ used CS1-B/DS1-B switches. Note that the external stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X30-20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X30-20S |
| Bore size | Ø32 mm |
| Stroke | 30 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ32X30-20S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAUJ32X30-20S 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). |
|---|---|
| 32 | 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 clamping parts where the exact contact point varies, using the 20mm stop screw to tune the 10-30mm extend stroke precisely on-site.
Fits tight machinery spaces thanks to the short extruded-aluminum profile barrel, providing reliable ejection with adjustable end-positioning.
To replace the discontinued SUJ32X30-20S, order the exact direct replacement SAUJ32X30-20S, which matches the 32mm bore, 30mm nominal stroke, 20mm adjust window, 1/8" port, and FA/LB mounting. When selecting the adjust window, ensure the 20mm trim capacity covers your on-site stroke variation. Because this model has the -S magnet, you must upgrade your sensing to CMSG/DMSG/EMSG switches, as the legacy CS1-B/DS1-B sensors are obsolete. Mounting is compatible with the AirTAC SC series only. For this 30mm stroke, side-load risks are minimal, but always confirm load guidance for your specific application.
Replacement checklist
Yes, the SUJ32X30-20S is discontinued. The direct replacement is the SAUJ32X30-20S. It offers the same 32mm bore, 30mm maximum stroke, 20mm adjust window, 1/8" port, and FA/LB mounting. The main upgrade is that the SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw provides a 20mm adjust window, allowing you to shorten the 30mm nominal extend stroke down to 10mm on-site. The stop sets end position but is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X30-20S replacement — usually within 7-8 hours.