This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X275-100S, 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 SUJ32X275-100S is a double-acting profile-type standard cylinder with a Ø32mm bore and 275mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ32X275-100S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X275-100S is a double-acting, double-rod profile cylinder with a 32 mm bore and a 275 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, yielding a usable extend window of 175-275 mm to dial in exact end positions without mechanical shims. The extruded aluminum profile barrel is noticeably shorter than a standard ISO 15552 unit of the same bore. This discontinued model is replaced direct by the SAUJ32X275-100S, retaining the 1/8" port, M10x1.25 rod thread, and 21 mm adjustable cushions.
The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B switches; the SAUJ successor transitions to current CMSG/DMSG/EMSG sensors. Remember the stop screw sets end position only—it is not a load lock, so add an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X275-100S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X275-100S |
| Bore size | Ø32 mm |
| Stroke | 275 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 SAUJ32X275-100S 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 SAUJ32X275-100S 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. |
| ×275 | 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.
Dialing in multiple extend lengths on a single station. The 100 mm trim window lets operators set the extend stroke anywhere from 175 to 275 mm to accommodate varying product pitches without swapping the cylinder.
Rejecting items of varying widths on a packaging line. The external stop screw allows quick on-site adjustment of the pusher end position to match carton depth without reprogramming machine logic.
Tuning the exact bottoming position of a small forming tool.
To replace the discontinued SUJ32X275-100S, specify the SAUJ32X275-100S. It is a direct: the 32 mm bore, 275 mm maximum stroke, 100 mm adjust window, 1/8" port, and FA/LB mounting interfaces all carry over unchanged. Select the 100 mm adjust window when your mechanism requires a wide field-tuning range (175-275 mm usable extend); a smaller 50 mm window is better if you only need fine trimming to avoid excessive screw protrusion. Because the 275 mm stroke exceeds 300 mm when combined with the stop screw body, verify side-load alignment to prevent rod binding. For the -S magnet option, note that the SAUJ uses CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. Finally, the stop screw sets end position only; it is not a lock, so specify an external rod lock for vertical or held loads.
Replacement checklist
Yes, the SUJ32X275-100S is discontinued. The direct replacement is the AirTAC SAUJ32X275-100S. It shares the same 32 mm bore, 275 mm stroke, 100 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 switches.
The external stop screw provides a 100 mm adjust window, meaning the usable extend stroke can be field-trimmed from 175 mm up to the 275 mm maximum. The stop sets end position only and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X275-100S replacement — usually within 7-8 hours.