This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X500-75S, 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 SUJ32X500-75S is a double-acting profile-type standard cylinder with a Ø32mm bore and 500mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ32X500-75S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X500-75S is a double-acting, double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 425-500 mm extend window from the 500 mm nominal maximum. This compact extruded-aluminum barrel is shorter than an ISO 15552 cylinder of the same bore.
This SUJ32X500-75S model is discontinued; the direct replacement is the SAUJ32X500-75S, sharing the same bore, stroke, force, port, and FA/LB mounting. The legacy CS1-B/DS1-B sensors on this -S magnet model are superseded by current CMSG/DMSG/EMSG switches on the SAUJ. The stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X500-75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X500-75S |
| Bore size | Ø32 mm |
| Stroke | 500 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 SAUJ32X500-75S 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 SAUJ32X500-75S 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. |
| ×500 | 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.
Tuning the extend stroke on-site to push parts of varying widths into a press without re-fabricating hard stops.
Setting precise reach distances on a sorting lane to deflect different package sizes accurately.
Trimming the extend end position to eject bins of differing depths from a storage rack safely.
To replace the discontinued SUJ32X500-75S, use the SAUJ32X500-75S direct, which retains the 32 mm bore, 500 mm nominal stroke, 75 mm adjust window, 1/8" port, and FA/LB mounting. Choose the 75 mm adjust window if your application requires field-tuning the extend stroke down to 425 mm; the SAUJ beats a fixed SAU plus external stop by integrating this stroke trim cleanly. For the -S magnet, change legacy CS1-B/DS1-B sensors to CMSG/DMSG/EMSG switches. At 500 mm stroke, mind side-load and rod-bending forces by supporting the load with external guides.
Replacement checklist
Yes, the SUJ32X500-75S is discontinued. The direct replacement is the SAUJ32X500-75S, matching the 32 mm bore, 500 mm stroke, 75 mm adjust window, 1/8" port, and FA/LB mounting. You must upgrade the legacy CS1-B/DS1-B sensors to CMSG/DMSG/EMSG switches.
The external stop screw window is 75 mm, allowing you to shorten the 500 mm maximum extend stroke down to 425 mm on-site. 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 SAUJ32X500-75S replacement — usually within 7-8 hours.