This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X80-100, 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 SUJ100X80-100 is a double-acting profile-type standard cylinder with a Ø100mm bore and 80mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X80-100, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X80-100 is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 100 mm on-site. With a nominal 80 mm stroke, the usable extend range is 0-80 mm. It features a 1/2" port, a 25 mm rod, and 29 mm adjustable cushions.
The direct replacement is the SAUJ100X80-100, matching the bore, stroke, force, port, and FA/LB mounting. Upgrading to the SAUJ moves you to current CMSG/DMSG/EMSG sensors, departing from the legacy CS1-B/DS1-B switches. Note this non-magnet SKU cannot take a switch, and the stop screw sets end position but is not a load lock.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X80-100 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X80-100 |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAUJ100X80-100 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 SAUJ100X80-100 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. |
| ×80 | 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 stroke on-site for pressing operations where material thickness varies, using the 100 mm adjust window to set a precise end position without swapping cylinders.
Tuning a diverter arm on a conveyor line to accommodate different package sizes, trimming the extend stroke by up to 100 mm to hit the exact routing angle needed.
Setting a specific physical end-stop for a pallet handling gate when machine layouts change, relying on the external screw rather than adding hard stops.
To replace the discontinued SUJ100X80-100, order the SAUJ100X80-100; it is a direct for the 100 mm bore, 80 mm stroke, 1/2" port, and FA/LB mounts. The 100 mm adjust window lets you dial the extend stroke down to zero, which is ideal when a fixed SAU plus external stop would waste space. Because this SKU lacks a magnet, it cannot take a sensor; the SAUJ upgrade requires CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B. For strokes at or over 300 mm, verify side-load limits to prevent guide wear. The stop screw sets end position only; for load holding on air loss, add an external rod lock or pilot-operated check valve.
Replacement checklist
Yes, the SUJ100X80-100 is discontinued. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw window is 100 mm, allowing you to trim the 80 mm nominal extend stroke down to 0 mm on-site. 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 SAUJ100X80-100 replacement — usually within 7-8 hours.