This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X542S, 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 SU80X542S is a double-acting profile-type standard cylinder with a Ø80mm bore and 542mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X542S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X542S is a discontinued double-acting profile-type cylinder with an 80 mm bore and 542 mm stroke. It delivers 2513 N push force at 0.5 MPa through a 3/8" port. AirTAC replaced this end-of-life unit with the SAU80X542S, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
Two key upgrades define the SAU transition: the legacy CS1-B/DS1-B sensors used on this -S magnet model are replaced by current CMSG/DMSG/EMSG switches, and the SAU line introduces a SAUF variant with a built-in 4M solenoid valve the SU never offered. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU80X542S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X542S |
| Bore size | Ø80 mm |
| Stroke | 542 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 SAU80X542S 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 SAU80X542S 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. |
| ×542 | 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 pushing heavy pallets or totes on a 542 mm stroke conveyor line where 2513 N of push force at 0.5 MPa easily overcomes friction and deflects loads.
Functions as a robust 80 mm bore stopper mechanism in automated storage systems, using its 542 mm extension to physically block advancing inventory until released.
To replace the discontinued SU80X542S, order the SAU80X542S direct equivalent, verifying your 80 mm bore, 542 mm nonstandard stroke, 3/8" port, M20x1.5 rod thread, and SC-series mounting hardware. Because this is a -S magnet model, note that your legacy CS1-B/DS1-B switches must change to the SAU-compatible CMSG/DMSG/EMSG sensor family. If you need integrated air control, consider the SAUF variant which features a built-in 4M solenoid valve absent in the original SU line. When sizing, the 80 mm bore yields 2513 N push and 2268 N pull at 0.5 MPa, while the neighboring 63 mm bore offers 1559 N push. For the 542 mm stroke, external guides are strongly recommended to prevent rod bending and manage side loads. Remember that a standard cylinder drifts without live air; the adjustable 28 mm cushions only decelerate near stroke end, so add an external rod lock or pilot-operated check valve for load holding.
Replacement checklist
Yes, the AirTAC SU80X542S is discontinued and end-of-life. The direct replacement is the SAU80X542S. It shares the identical 80 mm bore, 542 mm stroke, 3/8" port, 513 kgf max force, and SC-series mounting accessories, so it fits the same application directly. You just order the SAU equivalent.
The 80 mm bore provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a 513 kgf theoretical maximum at 1.0 MPa. Because your SU model has a magnet (-S), the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement uses the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X542S replacement — usually within 7-8 hours.