This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X285S, 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 SU80X285S is a double-acting profile-type standard cylinder with a Ø80mm bore and 285mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X285S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X285S is a discontinued double-acting profile-type cylinder with an 80 mm bore and 285 mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 cylinder of the same size while sharing AirTAC SC-series mounting accessories. It delivers 2513 N push force at 0.5 MPa. The direct replacement is the SAU80X285S, matching the bore, stroke, 3/8" port, and output force.
When upgrading to the SAU80X285S, the body and SC-series mounting remain identical, but the legacy CS1-B/DS1-B switches used on this -S magnet model must change to the current CMSG/DMSG/EMSG sensor family. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series lacked.
| Model | Airtac SU63-100 Standard Cylinder SU80X285S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X285S |
| Bore size | Ø80 mm |
| Stroke | 285 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 SAU80X285S 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 SAU80X285S 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. |
| ×285 | 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.
Pushes heavy pallets sideways off a high-speed packaging line using the 2513 N thrust at 0.5 MPa, absorbing end-stop shock via the 28 mm adjustable air cushions.
Raises a 128 kg material gate through 285 mm of travel, benefiting from the compact extruded profile to fit tight vertical machinery spaces.
Ejects formed metal components from a press bed, utilizing the 80 mm bore's 513 kgf maximum theoretical force for stubborn or jammed parts.
To replace this discontinued SU80X285S, order the SAU80X285S direct equivalent, verifying the 80 mm bore, 285 mm stroke, 3/8" port, M20x1.5 rod thread, and PT/G/NPT thread preference. Because this SKU includes a magnet (-S), note that your existing CS1-B/DS1-B switches will not fit the SAU groove; you must upgrade to CMSG/DMSG/EMSG sensors. If your application requires integrated flow control, consider the SAUF valve-integrated variant. For sizing alternatives, dropping to a 63 mm bore yields 1559 N push at 0.5 MPa, while stepping up to a 100 mm bore provides 3927 N. Remember that a standard cylinder drifts without live air—the cushion only decelerates near stroke end—so install an external rod lock or pilot-operated check valve for secure load holding. At 285 mm stroke, guide the load to prevent rod bending and premature seal wear.
Replacement checklist
Yes, the SU80X285S is discontinued. The direct replacement is the SAU80X285S. It matches the 80 mm bore, 285 mm stroke, 3/8" port, output force, and SC-series mounting. You can swap it directly without altering your mechanical footprint.
The SAU80X285S provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a maximum theoretical force of 513 kgf at 1.0 MPa. Because your SU model has a magnet (-S), you must replace legacy CS1-B/DS1-B switches with the current CMSG/DMSG/EMSG sensor family on the SAU replacement.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X285S replacement — usually within 7-8 hours.