This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X225-75, 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 SUJ32X225-75 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 SAUJ32X225-75, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X225-75 is a discontinued 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. With a nominal 225 mm stroke, the usable extend length is 150-225 mm. The stop sets the end position but is not a load lock; a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve for held loads. This 32 mm bore unit pushes 402 N and pulls 345 N at 0.5 MPa, features a 1/8" port, and runs at 30-800 mm/s.
The direct replacement is the SAUJ32X225-75, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy model used CS1-B/DS1-B switches. As this SKU lacks a magnet, it cannot take a magnetic switch.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X225-75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X225-75 |
| 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 SAUJ32X225-75 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 SAUJ32X225-75 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.
A packaging line that needs to push parts varying distances can use the 75 mm adjust window to set exact extend positions from 150 to 225 mm without swapping cylinders.
A diverter gate on a conveyor can be tuned on-site to accommodate different box sizes, using the stop screw to shorten the extend stroke precisely.
An ejection mechanism can be set to push products to different depths in a storage bin by trimming the extend stroke up to 75 mm during changeovers.
To replace this discontinued unit, specify the SAUJ32X225-75, which is a direct match for bore, 225 mm stroke, 75 mm adjust window, 1/8" port, and FA/LB mounts. Because this SKU has no magnet, it cannot accept sensors; if you need position detection on the new unit, add the -S suffix and use current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. Choose the 75 mm adjust window if you need to tune the extend stroke down to 150 mm on-site, which often beats fitting a fixed cylinder plus an external stop. For this 225 mm stroke, check side-load guidance to prevent rod binding.
Replacement checklist
Yes, the SUJ32X225-75 is discontinued. The direct replacement is the SAUJ32X225-75, which matches the 32 mm bore, 225 mm stroke, 75 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 allows you to trim the extend stroke by up to 75 mm on-site, giving a usable extend range of 150-225 mm.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X225-75 replacement — usually within 7-8 hours.