This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X55S, 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 SU80X55S is a double-acting profile-type standard cylinder with a Ø80mm bore and 55mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X55S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X55S is a discontinued double-acting profile-type cylinder with an 80mm bore and 55mm stroke, delivering 2513N push and 2268N pull at 0.5MPa. Its extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same bore, while sharing AirTAC SC-series mounting accessories. The direct replacement is the SAU80X55S, matching the bore, stroke, force, 3/8" port, and M20x1.5 rod thread.
When upgrading to the SAU80X55S, the body and 28mm adjustable cushions remain identical, but the legacy CS1-B/DS1-B switches on this -S 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 lacked.
| Model | Airtac SU63-100 Standard Cylinder SU80X55S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X55S |
| Bore size | Ø80 mm |
| Stroke | 55 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 SAU80X55S 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 SAU80X55S 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. |
| ×55 | 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.
Applies up to 3518N of thrust at 0.7MPa for seating bearings or clinching sheet metal components in automated fabrication lines.
Handles robust diverting or stopping tasks on heavy material handling conveyors using the compact 80mm profile body and SC mounts.
To replace this SU80X55S, order the SAU80X55S direct equivalent, verifying the 80mm bore, 55mm stroke, 3/8" port (PT/G/NPT), and SC-series mounting (LB/FA/FB/CA/CB). Because this SKU includes a magnet, you must upgrade your sensors from the old CS1-B/DS1-B to the CMSG/DMSG/EMSG family. If sizing alternatives, the neighboring 63mm bore yields 1559N push at 0.5MPa, while the 100mm bore provides 3927N. For any load requiring holding on air loss, note that the cushion only decelerates; add an external rod lock or pilot-operated check valve. If your application needs self-switching, consider the SAUF valve-integrated option. At 55mm stroke, side-load rod-bending is minimal, but always guide the load.
Replacement checklist
Yes, the SU80X55S is discontinued. The direct replacement is the AirTAC SAU80X55S. It matches the 80mm bore, 55mm stroke, 2513N output force at 0.5MPa, 3/8" port, and SC-series mounting. You simply order the SAU equivalent.
The cylinder pushes 2513N and pulls 2268N at 0.5MPa, pushes 3518N at 0.7MPa, and reaches a theoretical max of 513kgf at 1.0MPa. Because your old model has a magnet (-S), the legacy CS1-B/DS1-B switches must be replaced with CMSG/DMSG/EMSG sensors on the SAU.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X55S replacement — usually within 7-8 hours.