This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X300-40, 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 SUJ32X300-40 is a double-acting profile-type standard cylinder with a Ø32mm bore and 300mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ32X300-40, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X300-40 is a double-acting, double-rod profile cylinder with an adjustable stroke, discontinued and replaced by the direct replacement SAUJ32X300-40. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 260-300 mm stroke (the 300 mm nominal is the maximum). The stop sets the end position and is not a load lock. This 32 mm bore uses a 1/8" port, a Ø12 mm rod, and 21 mm adjustable cushions.
The SAUJ successor retains the exact bore, force, and FA/LB mounting, but upgrades sensing to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B. This non-magnet SKU cannot take a switch.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X300-40 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X300-40 |
| Bore size | Ø32 mm |
| Stroke | 300 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 SAUJ32X300-40 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 SAUJ32X300-40 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. |
| ×300 | 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 down 40 mm lets a 32 mm bore unit push parts to varying pitches on the same line without swapping cylinders.
Trimming the extend stroke on-site sets precise 260-300 mm gate positions for diverting different carton widths off a belt.
The external stop screw provides repeatable end-position tuning for a packaging press when material thickness varies run to run.
To replace the discontinued SUJ32X300-40, order the SAUJ32X300-40; it is a direct keeping the 32 mm bore, 300 mm max stroke, 40 mm adjust window, 1/8" port, and FA/LB mounting. Choose the 40 mm adjust window if your extend target sits between 260 mm and 300 mm. Because this SKU lacks a magnet, it cannot accept a switch; the SAUJ requires CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B. At a 300 mm stroke, use external guides to prevent rod bending and manage side loads. A plain cylinder drifts on air loss, so fit an external rod lock for held loads.
Replacement checklist
Yes, the SUJ32X300-40 is discontinued. The direct replacement is the SAUJ32X300-40. It shares the same 32 mm bore, 300 mm max stroke, 40 mm adjust window, 1/8" port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors from the old CS1-B/DS1-B.
It is a double-acting double-rod cylinder with a 1/8" port. The nominal 300 mm stroke is the maximum; the external stop screw trims the extend stroke by up to 40 mm on-site, giving a 260-300 mm usable range. 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 SAUJ32X300-40 replacement — usually within 7-8 hours.