This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X20-10S, 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 SUJ100X20-10S is a double-acting profile-type standard cylinder with a Ø100mm bore and 20mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X20-10S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X20-10S is a 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, giving a usable extend range of 10 to 20 mm from the 20 mm nominal maximum. As a discontinued model, it is replaced directly by the SAUJ100X20-10S, which matches the 100 mm bore, 1/2" port, M20x1.5 rod thread, and 29 mm adjustable cushions. The SAUJ upgrade transitions the -S magnet sensing from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors.
The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X20-10S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X20-10S |
| Bore size | Ø100 mm |
| Stroke | 20 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 SAUJ100X20-10S 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 SAUJ100X20-10S 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. |
| ×20 | 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.
Adjusts the final 10 to 20 mm clamping contact point on the fly to accommodate varying workpiece thicknesses without repositioning the entire fixture.
Tunes the extend stroke by up to 10 mm on-site to set the exact gate protrusion distance required for different product widths on a packaging line.
Dials in the precise bottoming position for a 200 kg vertical pressing task, utilizing the 10 mm trim window to compensate for tooling variations.
To replace the discontinued SUJ100X20-10S, order the direct replacement SAUJ100X20-10S, retaining the same 100 mm bore, 20 mm nominal stroke, 10 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 10 mm adjust window when you need precise field tuning of a short 10 to 20 mm extend movement. Because this model includes the -S magnet, you must upgrade your position sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches. For longer strokes reaching 300 mm or more, verify your side-load limits to prevent excessive guide wear.
Replacement checklist
Yes, the SUJ100X20-10S is discontinued. The direct replacement is the SAUJ100X20-10S, which shares the same 100 mm bore, 20 mm stroke, 10 mm adjust window, 1/2" port, and FA/LB mounting. The primary upgrade is that the SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw provides a 10 mm adjust window, allowing you to shorten the 20 mm nominal extend stroke down to 10 mm on-site. The stop sets the end position but is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X20-10S replacement — usually within 7-8 hours.