This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X225-20, 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 SUJ32X225-20 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 SAUJ32X225-20, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X225-20 is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 20 mm on-site, giving a usable 205-225 mm range from the 225 mm nominal maximum. Because this SUJ model is discontinued, the direct replacement is the SAUJ32X225-20, which matches the 32 mm bore, 1/8" port, and force. The stop screw sets the end position but is not a lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads.
The compact profile barrel is shorter than an ISO 15552 cylinder of the same bore, and the SAUJ upgrade switches sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors. This non-magnet SKU cannot take a switch.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X225-20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X225-20 |
| 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 SAUJ32X225-20 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 SAUJ32X225-20 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.
Trimming the extend stroke by up to 20 mm on-site allows operators to set exact clamping depth for varying part thicknesses without reprogramming the PLC.
A diverter arm can be tuned across a 205-225 mm reach to accommodate different package sizes on a packaging line.
Engineers can dial in the exact extend position during R&D testing, iterating the 20 mm adjustment window to find optimal mechanical motion.
To replace the discontinued SUJ32X225-20, order the direct replacement SAUJ32X225-20, which retains the 32 mm bore, 225 mm max stroke, 20 mm adjust window, 1/8" port, and FA/LB mounting. The 20 mm adjust window is ideal for fine-tuning the extend end position without machining external stops. If you need position sensing, note the SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. For this 225 mm stroke, ensure your guiding handles side-load forces, as long strokes amplify lateral stress. This SKU has no magnet and cannot take a switch.
Replacement checklist
Yes, the SUJ32X225-20 is discontinued. The direct replacement is the SAUJ32X225-20, which matches the 32 mm bore, 225 mm stroke, 20 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 provides a 20 mm adjust window, making the usable extend stroke 205-225 mm. 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 SAUJ32X225-20 replacement — usually within 7-8 hours.