This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X300-10S, 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 SUJ100X300-10S is a double-acting profile-type standard cylinder with a Ø100mm bore and 300mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X300-10S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X300-10S is a discontinued double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 290-300 mm extend out of the 300 mm nominal maximum. It features a 1/2" port, an M20x1.5 rod thread, and 29 mm adjustable cushions. This model is discontinued; the direct replacement is the SAUJ100X300-10S, sharing the same bore, stroke, force, port, and FA/LB mounting.
Two key upgrade notes: the SAUJ successor retains the compact profile barrel but shifts from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches, and the SAUJ family adds an SAUF built-in-valve variant the SU line lacked. Remember the stop screw sets the end position but is not a load lock; drift occurs on air loss, requiring an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X300-10S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X300-10S |
| Bore size | Ø100 mm |
| Stroke | 300 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 SAUJ100X300-10S 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 SAUJ100X300-10S 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. |
| ×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.
Needs field stroke tuning to dial in the exact 295 mm extend position for pressing bearings without bottoming out the tooling.
Requires adjustable end positions to synchronise the 100 mm bore pusher with varying product sizes on a packaging line.
Uses the 10 mm adjust window to fine-tune the stopping face location for mixed pallet depths entering a stretch wrapper.
To replace the discontinued SUJ100X300-10S, order the direct replacement SAUJ100X300-10S, which matches the 100 mm bore, 300 mm stroke, 1/2" port, and FA/LB mounting. The 10 mm adjust window is ideal for fine-tuning the extend end position on-site rather than ordering custom strokes. Because this unit has the -S magnet, you must upgrade your sensing to CMSG/DMSG/EMSG switches since the legacy CS1-B/DS1-B switches are obsolete. At 300 mm stroke, use external guides to prevent rod bending and manage side loads. The stop screw sets end position only; it is not a lock, so add an external rod lock for load holding.
Replacement checklist
Yes, the SUJ100X300-10S is discontinued. The direct replacement is the SAUJ100X300-10S, which matches the 100 mm bore, 300 mm stroke, 1/2" port, and FA/LB mounting. You will need to upgrade the -S magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The external stop screw provides a 10 mm adjust window, allowing you to trim the extend stroke from 300 mm down to 290 mm on-site.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X300-10S replacement — usually within 7-8 hours.