This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X225-50S, 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 SUJ32X225-50S 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 SAUJ32X225-50S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X225-50S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 50 mm on-site. With a 225 mm nominal stroke, the usable extend range is 175-225 mm.
This SUJ series is discontinued; the direct replacement is the SAUJ32X225-50S, which matches the bore, stroke, force, and port. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches on this model. The stop screw sets the end position but is not a load lock; use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X225-50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X225-50S |
| 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 SAUJ32X225-50S 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 SAUJ32X225-50S 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.
Ideal for light pressing tasks where the exact 175-225 mm extend position must be dialed in on-site without re-mounting the cylinder.
Perfect for diverter arms on packaging lines that need quick stroke length changes to handle different product sizes on the fly.
Useful in material handling racks where the extend stop must be fine-tuned to specific bin depths without changing the maximum 225 mm stroke.
To replace the SUJ32X225-50S, order the direct replacement SAUJ32X225-50S, which retains the 50 mm adjust window, 1/8" port, and FA/LB mounting. If resizing, neighboring bores offer different forces at 0.5 MPa: the 40 mm bore pushes 628 N, while a smaller option would need confirmation from the datasheet. The 50 mm adjust window is ideal if your end-stop requires significant field tuning. Because this model has the -S magnet, you must upgrade your sensing to CMSG/DMSG/EMSG switches. For this 225 mm stroke, ensure your mechanical setup accounts for side-load to prevent premature seal wear.
Replacement checklist
Yes, the SUJ32X225-50S is discontinued. The direct replacement is the SAUJ32X225-50S, offering the same 32 mm bore, 225 mm stroke, 50 mm adjust window, and 1/8" port. You will need to upgrade your position sensors from the legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG switches.
The external stop screw provides a 50 mm adjust window, allowing you to shorten the 225 mm maximum extend stroke down to 175 mm on-site. The stop sets end position and does not lock the load.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X225-50S replacement — usually within 7-8 hours.