This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X125-30, 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 SUJ32X125-30 is a double-acting profile-type standard cylinder with a Ø32mm bore and 125mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ32X125-30, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X125-30 is a double-acting, double-rod adjustable-stroke profile cylinder, now discontinued. It uses an external stop screw to trim the extend stroke by up to 30 mm on-site, yielding a usable 95-125 mm extend out of the 125 mm nominal maximum. The extruded aluminum profile barrel is more compact than an ISO 15552 cylinder of the same bore.
The direct replacement is the SAUJ32X125-30, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade adopts current CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B switches used on this SUJ. Note this non-magnet SKU cannot take a switch, and the stop screw sets end position but is not a load lock.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X125-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X125-30 |
| Bore size | Ø32 mm |
| Stroke | 125 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 SAUJ32X125-30 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 SAUJ32X125-30 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. |
| ×125 | 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.
Feeding parts of differing lengths on a single line by dialing the extend stroke from 95 to 125 mm on the fly without changing cylinders.
Tuning a diverting flap's reach on a profile barrel to accommodate varying box widths precisely at the end of stroke.
Setting the exact 95-125 mm extend endpoint for pressing delicate packaging materials to avoid crushing the contents.
To replace the discontinued SUJ32X125-30, order the SAUJ32X125-30 direct, keeping the 32 mm bore, 125 mm stroke, 30 mm adjust window, and 1/8" port. Choose the 30 mm adjust window if you need field tuning of the extend stroke. Mounting is via basic, FA, or LB brackets (AirTAC SC series compatible only). Because this SKU lacks a magnet, it cannot accept a sensor; if sensing is needed, specify an SAUJ with the -S suffix to use CMSG/DMSG/EMSG switches. For strokes of 300 mm or longer, verify side-load limits to prevent guide wear. The stop screw sets end position but does not hold the load on air loss; use an external rod lock for held loads.
Replacement checklist
Yes, the SUJ32X125-30 is discontinued. The direct replacement is the SAUJ32X125-30, which matches the 32 mm bore, 125 mm stroke, 30 mm adjust window, 1/8" port, and FA/LB mounting. The SAUJ 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 125 mm nominal extend stroke down to 95 mm 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 SAUJ32X125-30 replacement — usually within 7-8 hours.