This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X280STC, 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 SU63-100 Standard Cylinder SU100X280STC is a double-acting profile-type standard cylinder with a Ø100mm bore and 280mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X280STC, which matches its bore, stroke, force and mounting.
The AirTAC SU100X280STC is a discontinued double-acting profile-type cylinder with a 100mm bore and 280mm stroke. It delivers 3927N push and 3681N pull at 0.5MPa, making way for the direct replacement: the SAU100X280STC. This successor preserves the exact extruded aluminum body, 1/2in port, M20x1.5 rod thread, 29mm cushions, and SC-series TC mounting interface.
Two key upgrades exist in the SAU line: the legacy CS1-B/DS1-B sensors are replaced by current CMSG/DMSG/EMSG switches, and the new SAUF variant offers a built-in 4M solenoid valve the SU series never had. The compact profile remains shorter than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU100X280STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X280STC |
| Bore size | Ø100 mm |
| Stroke | 280 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 SAU100X280STC 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 SAU100X280STC 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. |
| ×280 | 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 securing heavy metal components during machining or stamping, utilizing the 3927N push force at 0.5MPa to hold parts firmly against the fixture bed.
Drives heavy material feed mechanisms in automated stamping presses, where the 280mm stroke and compact profile body deliver high thrust in a restricted machinery footprint.
To replace this discontinued SU100X280STC, order the SAU100X280STC keeping the 100mm bore, 280mm stroke, 1/2in port, and TC mounting. Because this SKU includes the -S magnet, note that your legacy CS1-B/DS1-B switches must change to the SAU's CMSG/DMSG/EMSG sensor family. If you need to adjust force, the neighboring 80mm bore yields 2513N push while the 100mm bore hits 5497N at 0.7MPa. For load holding, remember a plain cylinder drifts on air loss as the cushion only decelerates; add an external rod lock or pilot-operated check valve for secure holding. At a 280mm stroke, side-load and rod-bending stresses are moderate, so ensure adequate guide alignment to prevent premature seal wear.
Replacement checklist
Yes, the AirTAC SU100X280STC is discontinued. The direct replacement is the SAU100X280STC. It matches the 100mm bore, 280mm stroke, 3927N output force, 1/2in port, and TC mounting accessories, fitting the same application directly.
The 100mm bore provides 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, and a theoretical max of 801kgf at 1.0MPa. This -S model uses legacy CS1-B/DS1-B switches, but the SAU replacement requires the newer CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X280STC replacement — usually within 7-8 hours.