This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ100X125-100TC — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ100X125-100TC 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 SUJ100X125-100TC is a double-acting profile-type standard cylinder with a Ø100mm bore and 125mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ100X125-100TC, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X125-100TC is a discontinued double-acting single-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 100 mm on-site, yielding a usable 25-125 mm stroke from the 125 mm nominal maximum. This 100 mm bore unit delivers 3927 N push and 3681 N pull at 0.5 MPa, rising to 7068 N push at 0.9 MPa, operating at 30-800 mm/s through a 1/2" port with 29 mm adjustable cushions. It is NOT an ISO 15552 cylinder and uses no tie-rods.
Because this model is end-of-life, the exact drop-in replacement is the SAUJ100X125-100TC, which retains the same bore, stroke, force, port, and TC mounting interface. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches used here. For sizing, a safe working load is roughly 2356 N (60% of the 0.5 MPa push), translating to a vertical lift of about 200 kg with a 2:1 margin. Note this non-magnetic SKU cannot accept a sensor, and the stop screw sets end position only—it is not a load lock.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X125-100TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X125-100TC |
| Bore size | Ø100 mm |
| Stroke | 125 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 SAUJ100X125-100TC 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 SAUJ100X125-100TC 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. |
| ×125 | 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 in the exact extend stop on-site for pressing or clamping operations where material thickness varies, using the 100 mm adjust window to prevent over-travel.
Tuning the actuation length of package diverters or gates dynamically on the factory floor without swapping the entire cylinder body.
Ejecting parts of different heights from a machining center by trimming the extend stroke up to 100 mm to match specific bin depths.
To replace the discontinued SUJ100X125-100TC, order the drop-in SAUJ100X125-100TC; the bore, stroke, 100 mm adjust window, 1/2" port, and TC mounting remain identical. If migrating, the SAUJ also offers the SAUF built-in-valve variant and requires current CMSG/DMSG/EMSG sensors (this SUJ used CS1-B/DS1-B, but this specific non-magnetic SKU takes no switch anyway). When sizing both ways, the neighboring 80 mm bore provides 2513 N push at 0.5 MPa, while the 100 mm bore offers 3927 N at 0.5 MPa or 5497 N at 0.7 MPa. The 100 mm adjust window is ideal when exact extend length must be dialed in on-site, beating a fixed SAU plus external stop. Use FA or LB mounts if TC is unsuitable. Because the nominal stroke is 125 mm, side-load concerns are minimal, but always confirm load guidance. The stop screw sets end position only; for load holding on air loss, specify an external rod lock or pilot-operated check valve, as the cushion only decelerates.
Replacement checklist
Yes, the AirTAC SUJ100X125-100TC is discontinued. The exact drop-in replacement is the SAUJ100X125-100TC, which matches the 100 mm bore, 125 mm stroke, 100 mm adjust window, 1/2" port, and TC mounting. The SAUJ also supports current CMSG/DMSG/EMSG sensors.
This double-acting single-rod cylinder has a 100 mm adjust window (usable extend stroke 25-125 mm). It delivers 3927 N push / 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and 7068 N push at 0.9 MPa. It features a 1/2" port, 29 mm cushions, and the stop screw sets end position but is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X125-100TC replacement — usually within 7-8 hours.