This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X250-30, 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 SUJ32X250-30 is a double-acting profile-type standard cylinder with a Ø32mm bore and 250mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ32X250-30, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X250-30 is a discontinued double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 220-250 mm stroke. Its extruded aluminum profile barrel is shorter than a standard cylinder of the same 32 mm bore.
Because this SUJ model is end-of-life, the direct replacement is the SAUJ32X250-30, retaining the same force, 1/8" port, and FA/LB mounting. Note this non-magnetic SKU cannot take a sensor; the SAUJ upgrade switches to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B. The stop screw sets end position only and is not a load lock.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X250-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X250-30 |
| Bore size | Ø32 mm |
| Stroke | 250 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 SAUJ32X250-30 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 SAUJ32X250-30 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. |
| ×250 | 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.
Trimming the extend stroke by up to 30 mm on-site allows operators to fine-tune ejection length without swapping cylinders when material thickness changes.
Adjustable end-positioning provides flexible package routing on a conveyor, accommodating different carton sizes by shortening the stroke up to 30 mm.
Field-tuning the extend stroke lets a diverter arm adapt to varying pallet widths on the fly, ensuring accurate placement without mechanical spacers.
To replace the discontinued SUJ32X250-30, order the direct replacement SAUJ32X250-30, which matches the 32 mm bore, 250 mm stroke, 30 mm adjust window, 1/8" port, and FA/LB mounting. Choose the 30 mm adjust window if you need field tuning of the extend stroke; for fixed positions, a standard SAU cylinder suffices. If upgrading sensing, note the SAUJ uses CMSG/DMSG/EMSG sensors, while this legacy model used CS1-B/DS1-B. Because the 250 mm stroke exceeds 300 mm? No, at 250 mm side-load risks are moderate, but always verify rod-end alignment. For holding loads on air loss, add an external rod lock, as the stop screw is not a brake.
Replacement checklist
Yes, the AirTAC SUJ32X250-30 is discontinued. The direct replacement is the SAUJ32X250-30, which matches the 32 mm bore, 250 mm stroke, 30 mm adjust window, 1/8" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw window is 30 mm, allowing you to shorten the extend stroke from the 250 mm maximum down to 220 mm. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X250-30 replacement — usually within 7-8 hours.