This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X400-100S, 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 SUJ32X400-100S is a double-acting profile-type standard cylinder with a Ø32mm bore and 400mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ32X400-100S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X400-100S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 100mm on-site, yielding a usable 300-400mm window from the 400mm nominal maximum. This bore uses a Ø12mm rod with M10x1.25 threading and 21mm adjustable cushions. The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so fit an external rod lock for held loads.
This discontinued SUJ series is replaced by the direct replacement SAUJ32X400-100S, matching the 32mm bore, 400mm stroke, force, and FA/LB mounts. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy -S model used CS1-B/DS1-B switches. The compact extruded barrel is shorter than standard cylinders, and at 400mm stroke you should support side loads with external guides to prevent rod bending.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X400-100S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X400-100S |
| Bore size | Ø32 mm |
| Stroke | 400 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 SAUJ32X400-100S 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 SAUJ32X400-100S 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. |
| ×400 | 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 the extend stop screw allows on-site tuning of the push stroke between 300mm and 400mm to accommodate changing material pitches without swapping the cylinder.
Trimming the extend stroke by up to 100mm lets a single 32mm bore cylinder adapt to varying package widths on a transfer line, ensuring precise end positions.
Field-adjusting the extend endpoint provides flexible positioning for sorting diverter arms that must handle multiple box depths on the fly.
To replace the discontinued SUJ32X400-100S, order the direct replacement SAUJ32X400-100S, which preserves the 32mm bore, 400mm nominal stroke, 1/8" port, and FA/LB mounting. Choose the -100mm adjust window if your extend stroke needs field tuning between 300mm and 400mm. Because this -S model used legacy CS1-B/DS1-B switches, you must migrate to CMSG/DMSG/EMSG sensors on the SAUJ. Finally, at 400mm stroke, external guides are recommended to manage side loads and prevent rod bending.
Replacement checklist
Yes, the AirTAC SUJ32X400-100S is discontinued. The direct replacement is the SAUJ32X400-100S, which matches the 32mm bore, 400mm stroke, 1/8" port, and FA/LB mounting. You must upgrade your switches, as the SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches on this -S model.
The external stop screw provides a 100mm adjust window, allowing you to shorten the 400mm extend stroke down to 300mm on-site. The stop sets end position only; it is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X400-100S replacement — usually within 7-8 hours.