This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X120S, 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 SU63-100 Standard Cylinder SU100X120S is a double-acting profile-type standard cylinder with a Ø100mm bore and 120mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X120S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X120S is a discontinued double-acting profile-type cylinder with a 100mm bore and 120mm stroke. Delivering 3927N push and 3681N pull at 0.5MPa, its direct replacement is the SAU100X120S, retaining the same 1/2" port, M20x1.5 rod thread, and SC-series mounting compatibility.
This compact extruded-aluminium body is shorter than an equivalent ISO 15552 unit. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches; upgrading to the SAU requires current CMSG/DMSG/EMSG sensors. Note that the SAU family also introduces a SAUF variant with a built-in 4M solenoid valve, an option the original SU line lacked.
| Model | Airtac SU63-100 Standard Cylinder SU100X120S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X120S |
| Bore size | Ø100 mm |
| Stroke | 120 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 SAU100X120S 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 SAU100X120S 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. |
| ×120 | 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.
Applies up to 7068N of thrust at 0.9MPa to secure heavy metal workpieces during machining or stamping operations.
Provides a safe 200kg vertical lift capacity at 0.5MPa, ideal for raising loaded pallets in packaging lines.
Utilizes the 29mm adjustable air cushions to smoothly decelerate the 25mm rod during high-speed ejection of heavy molds.
To replace this discontinued SU100X120S, order the SAU100X120S direct equivalent, verifying your 1/2" port thread (PT, G, or NPT) and SC-series mounting brackets (LB, FA, FB, CA, CB, TC). Because this -S model uses legacy CS1-B/DS1-B switches, you must migrate to CMSG/DMSG/EMSG sensors on the SAU. If your application needs integrated directional control, consider the SAUF100X120S valve-cylinder variant. For loads near the 3927N push force at 0.5MPa, a plain cylinder will not hold position on air loss—the cushions only decelerate—so add an external rod lock or pilot-operated check valve for safety. If downsizing, an 80mm bore yields 2513N push at 0.5MPa; if upsizing is required, note that 100mm is the largest available profile bore.
Replacement checklist
Yes, the AirTAC SU100X120S is discontinued. The direct replacement is the SAU100X120S. It matches the original 100mm bore, 120mm stroke, 1/2" port, output force, and SC-series mounting accessories exactly.
At 0.5MPa it provides 3927N push and 3681N pull, increasing to 5497N at 0.7MPa, with a theoretical max of 801kgf at 1.0MPa. The -S magnet on this legacy model worked with CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X120S replacement — usually within 7-8 hours.