This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X400-30, 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 SUJ32X400-30 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 SAUJ32X400-30, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X400-30 is a double-acting, double-rod adjustable-stroke profile cylinder. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable 370-400 mm extension out of the 400 mm nominal maximum. This SUJ model is discontinued; the direct replacement is the SAUJ32X400-30, sharing the same body, force, and FA/LB mounting.
The stop screw sets the end position but is not a load lock; use an external rod lock for held loads. The SAUJ upgrade switches legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches. At 400 mm stroke, external guides are recommended to prevent rod bending.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X400-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X400-30 |
| 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 SAUJ32X400-30 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 SAUJ32X400-30 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.
Tuning the extend stroke on-site by up to 30 mm allows precise ejection of parts of varying widths without re-mounting the cylinder.
Field-trimming the extension lets a single transfer pusher accommodate different package sizes on a 400 mm stroke line.
The external stop screw provides exact diverting depths for mixed pallet loads, shortening the 400 mm stroke as needed.
To replace the discontinued SUJ32X400-30, order the direct replacement SAUJ32X400-30, which matches the 32 mm bore, 400 mm stroke, 30 mm adjust window, 1/8" port, and FA/LB mounting. Choose the 30 mm adjust window if your end-stop needs field tuning between 370 mm and 400 mm. Because this SKU lacks a magnet, it cannot take a sensor; the SAUJ -S variant uses CMSG/DMSG/EMSG sensors. For this 400 mm stroke, add external guides to manage side-load and rod-bending risks.
Replacement checklist
Yes, the SUJ32X400-30 is discontinued. The direct replacement is the SAUJ32X400-30, offering the same 32 mm bore, 400 mm stroke, 30 mm adjust window, 1/8" port, and FA/LB mounting. The SAUJ also supports current CMSG/DMSG/EMSG sensors.
The external stop screw window is 30 mm, allowing you to trim the extend stroke from 400 mm down to 370 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 SAUJ32X400-30 replacement — usually within 7-8 hours.