This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X350-75S, 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 Airtac SUJ Adjustable Cylinder SUJ100X350-75S is a double-acting profile-type standard cylinder with a Ø100mm bore and 350mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X350-75S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X350-75S 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, yielding a usable 275-350 mm window from the 350 mm nominal maximum. The 1/2" port and M20x1.5 rod end handle high flow, while the 29 mm adjustable air cushions decelerate heavy loads smoothly.
This SUJ unit is discontinued; the direct replacement is the SAUJ100X350-75S, retaining the same bore, stroke, 1/2" port, force, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy -S model used CS1-B/DS1-B switches. Note that the stop screw sets end position only—it is not a load lock; use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X350-75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X350-75S |
| Bore size | Ø100 mm |
| Stroke | 350 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ100X350-75S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAUJ100X350-75S 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). |
|---|---|
| 100 | Bore size in mm. |
| ×350 | 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 in precise insertion depth on a 350 mm stroke press, trimming up to 75 mm on-site to perfect the seating force without remounting the cylinder.
Adjusting a diverter arm's extend position by up to 75 mm on the fly to accommodate different package sizes on a packing line.
Setting a hard, repeatable mechanical end position between 275 mm and 350 mm for a pallet lifting mechanism where exact height varies by load.
To replace the discontinued SUJ100X350-75S, specify the SAUJ100X350-75S direct, which preserves the 100 mm bore, 350 mm max stroke, 75 mm adjust window, 1/2" port, and FA/LB mounting. The 75 mm adjust window is ideal when final extend position must be tuned on-site, often beating a fixed SAU plus external stop. If your stroke is 350 mm, add external guides to prevent rod bending and side-load wear. For the -S magnet option, migrate from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors on the SAUJ.
Replacement checklist
Yes, the SUJ100X350-75S is discontinued. The direct replacement is the SAUJ100X350-75S, which matches the 100 mm bore, 350 mm stroke, 75 mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw trims the extend stroke by up to 75 mm, giving a 275-350 mm usable window. The stop sets end position only and does not lock the load.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X350-75S replacement — usually within 7-8 hours.