This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X350-75, 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 SUJ100X350-75 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 SAUJ100X350-75, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X350-75 is a double-acting double-rod profile cylinder with a 350 mm nominal stroke and a 75 mm adjustable-stroke window. An external stop screw lets you trim the extend stroke on-site down to 275 mm without changing the hardware. The 1/2" port and M20x1.5 rod end handle high flow, while the 29 mm adjustable cushions absorb kinetic energy at stroke ends. This SUJ model is discontinued; the direct replacement is the SAUJ100X350-75, retaining the same bore, stroke, force, port and FA/LB mounting.
The stop screw sets the end position but is not a load lock; the piston drifts on air loss, so fit an external rod lock for held loads. The SAUJ upgrade moves sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches, though this specific non-magnet SKU cannot take a switch. At 350 mm stroke, use external guides to prevent rod bending under side loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X350-75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X350-75 |
| 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 SAUJ100X350-75 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 SAUJ100X350-75 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.
Trimming the extend stroke by up to 75 mm on-site allows a single cylinder to press parts of varying heights without re-engineering the fixture.
Field-tuning the extend end position lets operators alter the divert distance on a sorting line to handle different package widths on the fly.
Shortening the extend stroke by up to 75 mm accommodates varying pallet depths or load heights while using the maximum 350 mm stroke for standard cycles.
To replace the discontinued SUJ100X350-75, order the direct replacement SAUJ100X350-75, matching the 100 mm bore, 350 mm stroke, 75 mm adjust window, 1/2" port and FA/LB mounting. Choose the 75 mm adjust window if you need to trim the extend stroke on-site between 275 mm and 350 mm; the external stop sets end position but is not a lock. Because this SKU lacks a magnet, it cannot take a switch; the SAUJ uses CMSG/DMSG/EMSG sensors for the -S variant. For a 350 mm stroke, add external guides to manage side-load and rod-bending risks.
Replacement checklist
Yes, the SUJ100X350-75 is discontinued. The direct replacement is the SAUJ100X350-75, 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.
The 75 mm adjust window lets you trim the extend stroke on-site from the 350 mm maximum down to 275 mm. 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 SAUJ100X350-75 replacement — usually within 7-8 hours.