This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X25S, 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 SU100X25S is a double-acting profile-type standard cylinder with a Ø100mm bore and 25mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X25S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X25S is a discontinued double-acting profile-type cylinder with a 100mm bore and 25mm stroke, delivering 3927 N push force at 0.5 MPa. AirTAC replaced it with the SAU100X25S, a direct upgrade sharing the exact same extruded body, 1/2" port, M20x1.5 rod thread and SC-series mounting accessories.
This compact profile body is shorter than an equivalent ISO 15552 unit. The -S magnet on this legacy unit worked with CS1-B/DS1-B switches, but the SAU replacement requires current CMSG/DMSG/EMSG sensors. The SAU family also adds a SAUF valve-integrated option the SU line lacked.
| Model | Airtac SU63-100 Standard Cylinder SU100X25S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X25S |
| Bore size | Ø100 mm |
| Stroke | 25 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 SAU100X25S 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 SAU100X25S 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. |
| ×25 | 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.
Drives heavy tooling dies with 3927 N push at 0.5 MPa, utilizing the short 25mm stroke for rapid, high-force impact cycles.
Actuates robust routing gates on high-mass conveyor lines, where the 100mm bore provides enough force to overcome pallet inertia.
To replace this discontinued SU100X25S, order the SAU100X25S. Confirm the 1/2" port, M20x1.5 rod thread, PT/G/NPT threading and your SC-series mounting (LB/FA/FB/CA/CB). Because this SKU has the -S magnet, note the sensor family changes from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG. If sizing both ways, the 80mm bore yields 2513 N push at 0.5 MPa, while this 100mm bore hits 5497 N at 0.7 MPa. A plain cylinder drifts without live air, so use an external rod lock or pilot-operated check valve for held loads. For self-switching needs, consider the new SAUF built-in-valve variant.
Replacement checklist
Yes, the AirTAC SU100X25S is discontinued. The direct replacement is the SAU100X25S. It shares the same 100mm bore, 25mm stroke, 1/2" port, output force and SC-series mounting, so it fits the same application directly.
It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a maximum theoretical force of 801 kgf at 1.0 MPa. Because this is a -S magnet model, the original CS1-B/DS1-B switches are obsolete; the SAU replacement uses CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X25S replacement — usually within 7-8 hours.