This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X28S, 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 SU80X28S is a double-acting profile-type standard cylinder with a Ø80mm bore and 28mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X28S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X28S is a discontinued double-acting profile-type cylinder featuring an 80mm bore, 28mm stroke, and a built-in piston magnet. It delivers a push force of 2513 N and pull of 2268 N at 0.5 MPa, operating via a 3/8" port with a 25mm rod. AirTAC replaced this unit with the SAU80X28S, a direct upgrade retaining the exact bore, stroke, force, port size, and SC-series mounting footprint.
Because of its extruded aluminum body, this cylinder is more compact than a standard ISO 15552 unit of the same bore. Note that the SAU upgrade switches to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B switches used here, and the SAU line introduces a SAUF variant with a built-in valve.
| Model | Airtac SU63-100 Standard Cylinder SU80X28S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X28S |
| Bore size | Ø80 mm |
| Stroke | 28 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU80X28S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAU80X28S 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). |
|---|---|
| 80 | Bore size in mm. |
| ×28 | 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 high-force 2513 N clamping of heavy steel plates in machining fixtures, utilizing the compact 28mm stroke to secure parts rapidly.
Provides robust actuation for heavy-duty conveyor diverters, using the 3/8" port for rapid 30-800 mm/s cycling to push bulky cartons off the line.
Serves as a heavy pallet stop gate in material handling, where the 80mm bore delivers enough thrust to halt moving loads on gravity rollers safely.
To replace this SU80X28S, order the SAU80X28S, confirming the 80mm bore, 28mm stroke, 3/8" port, and M20x1.5 rod thread. Since this SKU includes a magnet (-S), you must upgrade your sensors: the old CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG models on the SAU. If your machine needs higher force, the neighboring 100mm bore provides 3927 N push at 0.5 MPa; if less is required, the 63mm bore offers 1559 N. A plain cylinder drifts without live air—the cushion only decelerates—so fit an external rod lock or pilot-operated check valve for load holding. You can also explore the SAUF variant for an integrated 4M solenoid valve.
Replacement checklist
Yes, the AirTAC SU80X28S is discontinued. The direct replacement is the SAU80X28S. It shares the identical 80mm bore, 28mm stroke, 2513 N force, 3/8" port, and SC-series mounting, so it fits the same application without mechanical changes.
At 0.5 MPa it pushes 2513 N and pulls 2268 N. It pushes 3518 N at 0.7 MPa, 4523 N at 0.9 MPa, with a theoretical max of 513 kgf at 1.0 MPa. Because this is an -S magnet model, it used legacy CS1-B/DS1-B switches; 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 SAU80X28S replacement — usually within 7-8 hours.