This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X225-50, 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 SUJ32X225-50 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 SAUJ32X225-50, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X225-50 is a double-acting double-rod profile cylinder with a 225 mm nominal stroke and a 50 mm external stop screw window, letting you trim the extend stroke down to 175 mm on-site. This SUJ model is discontinued; the direct replacement is the SAUJ32X225-50, matching the bore, force, and FA/LB mounting.
The SAUJ upgrade transitions to current CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B switches used here. Because this specific SKU lacks a magnet, it cannot take a magnetic switch. 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 SUJ32X225-50 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X225-50 |
| 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 SAUJ32X225-50 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 SAUJ32X225-50 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 on-site allows precise volume adjustments in pneumatic dispensing heads without swapping the entire cylinder.
Accommodates multiple material lengths in a small fixture by dialing the external stop screw to set the exact end position per batch.
Provides field-tuned actuation distances for sorting gates that must handle varying package sizes on the fly.
To replace the discontinued SUJ32X225-50, order the SAUJ32X225-50 direct, which preserves the 32 mm bore, 225 mm stroke, 1/8" port, and FA/LB mounting. Choose the 50 mm adjust window if you need to trim the extend stroke on-site between 175 mm and 225 mm; for fixed points, a standard SAU cylinder suffices. This non-magnet model cannot accept sensors, but if upgrading to an -S SAUJ, select CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B. For this 225 mm stroke, verify side-load limits to prevent rod binding.
Replacement checklist
Yes, the SUJ32X225-50 is discontinued. The direct replacement is the SAUJ32X225-50, which matches the 32 mm bore, 225 mm stroke, 1/8" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The 50 mm external stop screw window allows trimming the 225 mm extend stroke down to 175 mm on-site. 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 SAUJ32X225-50 replacement — usually within 7-8 hours.