This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X500-30S, 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 SUJ Adjustable Cylinder SUJ32X500-30S 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 SAUJ32X500-30S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X500-30S 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 470-500 mm extend out of the 500 mm nominal maximum. This compact extruded barrel is shorter than an ISO 15552 unit of the same bore. The stop screw sets the end position but is not a load lock.
As this SUJ model is end-of-life, the direct replacement is the SAUJ32X500-30S, retaining the same force, port, and FA/LB mounting. The legacy CS1-B/DS1-B sensors used here are superseded by current CMSG/DMSG/EMSG switches on the SAUJ. Note that a plain cylinder drifts on air loss; use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X500-30S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X500-30S |
| 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 SAUJ32X500-30S 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 SAUJ32X500-30S 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.
A packaging line that requires on-site stroke tuning to shift a pusher pin between product sizes without swapping the entire actuator.
A conveyor divert station where the external stop screw trims the extend stroke by up to 30 mm to handle varying box depths on the fly.
An assembly cell needing precise end-position adjustment for a 470-500 mm ejection stroke to accommodate part tolerance variations.
To replace the SUJ32X500-30S, order the direct replacement SAUJ32X500-30S, which matches the 32 mm bore, 500 mm stroke, 1/8" port, and FA/LB mounting. Choose the 30 mm adjust window if your mechanism requires field-tuning the extend stroke down to 470 mm; this is often preferable to a fixed SAU plus an external stop. Because this unit has a -S magnet, you must upgrade from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. At a 500 mm stroke, minimize side-load and rod-bending forces by using external guides to support the piston rod.
Replacement checklist
Yes, the SUJ32X500-30S is discontinued. The direct replacement is the SAUJ32X500-30S, which shares the same 32 mm bore, 500 mm stroke, 1/8" port, and FA/LB mounting. You will need to upgrade the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches.
This double-acting double-rod cylinder has a 1/8" port and a 30 mm adjust window (usable extend stroke 470-500 mm). The external 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 SAUJ32X500-30S replacement — usually within 7-8 hours.