This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ100X230-50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ100X230-50S in place of this model. 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 SUJ100X230-50S is a double-acting profile-type standard cylinder with a Ø100mm bore and 230mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ100X230-50S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X230-50S is a double-acting single-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 180-230 mm extension out of the 230 mm nominal maximum. This discontinued unit delivers 3927 N push and 3681 N pull at 0.5 MPa, peaking at 7068 N push at 0.9 MPa. The 1/2" port and Ø25 rod make it a robust choice, but note the stop screw sets end position only—it is not a load lock, so an external rod lock is required for held loads.
Because the SUJ line is end-of-life, you should upgrade to the exact drop-in replacement: the SAUJ100X230-50S. It preserves the bore, stroke, 50 mm adjust window, 1/2" port, and FA/LB mounting. The primary change is sensor compatibility; your legacy CS1-B/DS1-B switches move to current CMSG/DMSG/EMSG sensors. A practical computed insight: at 0.5 MPa the safe working load is roughly 2356 N (60% of push), translating to a 200 kg vertical lift with a 2:1 margin.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X230-50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X230-50S |
| Bore size | Ø100 mm |
| Stroke | 230 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 SAUJ100X230-50S 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 SAUJ100X230-50S produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×230 | 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.
Ideal for light pressing tasks where the exact contact distance varies by jig, using the 50 mm stop screw to dial in the 180-230 mm extend position on-site without re-plumbing.
Sortation lines that handle changing package sizes can field-trim the actuator's extend stroke to position diverters accurately without swapping the entire cylinder.
Palletizing cells use the external stop to set precise end positions for different pallet depths, relying on the 7068 N push force at 0.9 MPa to halt heavy loads safely.
To replace the discontinued SUJ100X230-50S, order the drop-in SAUJ100X230-50S, ensuring you migrate from legacy CS1-B/DS1-B sensors to CMSG/DMSG/EMSG switches. When sizing both ways, the neighboring 80 mm bore yields 2513 N push at 0.5 MPa, while the 100 mm bore provides 3927 N; verify your force needs before stepping down. Choose the 50 mm adjust window if your assembly requires field tuning within a 180-230 mm extend range. The SC-series FA and LB mounts remain compatible. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding. Remember, the stop screw sets end position but does not lock the load—specify an external rod lock for vertical holding.
Replacement checklist
Yes, the SUJ100X230-50S is discontinued. The exact drop-in replacement is the SAUJ100X230-50S, which matches the 100 mm bore, 230 mm stroke, 50 mm adjust window, 1/2" port, and FA/LB mounting. You will need to upgrade your position sensing from the legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensors.
The double-acting single-rod unit delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and 7068 N push at 0.9 MPa, with a theoretical max of 801 kgf at 1.0 MPa. The external stop screw provides a 50 mm adjustment window, allowing you to shorten the 230 mm nominal extend stroke down to 180 mm on-site. The stop sets end position only and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X230-50S replacement — usually within 7-8 hours.