This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X225-40, 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 SUJ32X225-40 is a double-acting profile-type standard cylinder with a Ø32mm bore and 225mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ32X225-40, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X225-40 is a double-acting double-rod adjustable-stroke profile cylinder, now discontinued. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, giving a usable range of 185-225 mm from the 225 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 SAUJ32X225-40, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors, whereas this legacy model used CS1-B/DS1-B switches. This non-magnet SKU cannot take a switch. Note that the stop screw sets end position but is not a load lock; use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X225-40 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X225-40 |
| Bore size | Ø32 mm |
| Stroke | 225 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 SAUJ32X225-40 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 SAUJ32X225-40 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. |
| ×225 | 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 by up to 40 mm on-site allows operators to set precise ejection distances for varying part geometries without machining new hard stops.
Trimming the 225 mm stroke down to 185 mm lets a sorting diverter accommodate different package sizes on the fly, ensuring gentle contact without repositioning the cylinder.
Setting a specific extend window between 185 mm and 225 mm enables a carton pusher to index variable product depths accurately into a packing case.
To replace the discontinued SUJ32X225-40, order the SAUJ32X225-40 direct. It preserves the 225 mm maximum stroke, 40 mm adjust window, 1/8" port, and FA/LB mounting. Choose the 40 mm adjust window if your fixture requires field tuning between 185 mm and 225 mm. Because this SKU lacks a magnet, it cannot accept a sensor; if sensing is needed, specify the -S version of the SAUJ and migrate to CMSG/DMSG/EMSG switches. For this 225 mm stroke, verify side-load alignment to prevent rod binding. Remember that the external stop sets the end position but does not lock the load; add an external rod lock for holding.
Replacement checklist
Yes, the SUJ32X225-40 is discontinued. The direct replacement is the SAUJ32X225-40, which matches the 32 mm bore, 225 mm stroke, 40 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 provides a 40 mm adjust window, allowing you to trim the extend stroke from the 225 mm maximum down to 185 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 SAUJ32X225-40 replacement — usually within 7-8 hours.