This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X275-30S, 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 SUJ32X275-30S 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 SAUJ32X275-30S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X275-30S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 245-275 mm stroke window from the 275 mm nominal maximum. This SUJ model is discontinued; the direct replacement is the SAUJ32X275-30S, sharing the same body, force, and FA/LB mounting.
The SAUJ upgrade adopts current CMSG/DMSG/EMSG sensors, whereas this legacy unit used CS1-B/DS1-B switches (indicated by the -S suffix). Remember 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 SUJ32X275-30S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X275-30S |
| 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 SAUJ32X275-30S 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 SAUJ32X275-30S 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.
Trimming the extend stroke by up to 30 mm on-site allows operators to dial in the exact clamping contact point for varying workpiece heights without swapping cylinders.
A diverter arm needing a 245-275 mm reach can be fine-tuned during commissioning to match package sizes perfectly, preventing overshoot on the belt line.
An assembly line stop gate uses the external screw to set the final extended position, accommodating different pallet depths quickly on the factory floor.
To replace the discontinued SUJ32X275-30S, specify the SAUJ32X275-30S direct, which preserves the 32 mm bore, 275 mm max stroke, 30 mm adjust window, 1/8" port, and FA/LB mounting. Choose the 30 mm adjust window if your fixture needs on-site extend tuning between 245-275 mm; a fixed SAU cylinder plus external stop is bulkier. For the -S magnet, switch legacy CS1-B/DS1-B sensors to CMSG/DMSG/EMSG. Because stroke is 275 mm (>=300 mm threshold approaches), verify side-load guidance to prevent rod binding.
Replacement checklist
Yes, the SUJ32X275-30S is discontinued. The direct replacement is the SAUJ32X275-30S, offering the same 32 mm bore, 275 mm max stroke, 30 mm adjust window, and 1/8" port. You must upgrade your position sensing from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors.
The external stop screw provides a 30 mm adjustment window, allowing the extend stroke to be shortened from 275 mm down to 245 mm on-site. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X275-30S replacement — usually within 7-8 hours.