This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X300-75S, 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 SUJ Adjustable Cylinder SUJ32X300-75S 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 SAUJ32X300-75S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X300-75S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 75 mm on-site, giving a usable 225-300 mm extend window from the 300 mm nominal maximum. This profile barrel is notably shorter than an ISO 15552 cylinder of the same bore and features a 1/8" port with an M10x1.25 rod thread.
This SUJ model is DISCONTINUED; the direct replacement is the SAUJ32X300-75S, which retains the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy unit used CS1-B/DS1-B switches. Note that the stop screw sets end position but is not a load lock; use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X300-75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X300-75S |
| 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 SAUJ32X300-75S 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 SAUJ32X300-75S 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.
Trimming the extend stroke by up to 75 mm on-site allows precise depth control for drilling units without machining new hard stops.
Field-tuning the 225-300 mm extend window lets operators reposition conveyor diverter arms for changing package sizes on the fly.
Perfect for compact ejection stations needing a 32 mm bore where the physical push distance must be dialed in during machine commissioning.
To replace the SUJ32X300-75S, order the SAUJ32X300-75S direct, which matches the 32 mm bore, 300 mm stroke, 75 mm adjust window, 1/8" port, and FA/LB mounting. Choose the 75 mm adjust window when you need flexible extend positioning between 225 and 300 mm on-site. Because this unit has the -S magnet, you must switch from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors on the SAUJ. At a 300 mm stroke, use external guides to prevent rod bending and manage side loads.
Replacement checklist
Yes, the SUJ32X300-75S is discontinued. The direct replacement is the SAUJ32X300-75S, offering the same 32 mm bore, 300 mm stroke, 75 mm adjust window, 1/8" port, and FA/LB mounting. You will need to upgrade your switches from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors.
The external stop screw allows you to trim the extend stroke by up to 75 mm on-site, yielding a usable extend window of 225-300 mm. The stop sets end position but is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X300-75S replacement — usually within 7-8 hours.