This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X30FB, 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 SU80X30FB is a double-acting profile-type standard cylinder with a Ø80mm bore and 30mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X30FB, which matches its bore, stroke, force and mounting.
The AirTAC SU80X30FB is a discontinued double-acting profile-type cylinder with an 80mm bore and 30mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa, utilizing a 3/8" port and an FB mounting interface. AirTAC replaced this end-of-life unit with the SAU80X30FB, a direct alternative retaining the exact body, force, and SC-series mounting.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors, whereas this legacy SU lacked a magnet entirely and cannot accept any switch. The SAU family also adds a SAUF built-in 4M valve option the SU never offered. Note that air cushions only decelerate; use an external rod lock for load holding.
| Model | Airtac SU63-100 Standard Cylinder SU80X30FB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X30FB |
| Bore size | Ø80 mm |
| Stroke | 30 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 SAU80X30FB 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 SAU80X30FB 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. |
| ×30 | 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.
Secures heavy steel workpieces in machining fixtures using 2513N of push force at 0.5MPa without requiring high operating pressures.
Actuates heavy-duty routing gates on packaging lines where a compact 30mm stroke and robust 80mm bore provide rapid, high-impact redirection.
Halts loaded pallets at transfer stations; the FB mount handles heavy lateral loads while the adjustable cushion decelerates the stop safely.
To replace this discontinued SU80X30FB, order the SAU80X30FB direct equivalent, verifying the 80mm bore, 30mm stroke, 3/8" port, M20x1.5 rod thread, and FB mount. Because this specific SKU has no magnet (-S), it cannot support sensing; if position detection is needed on the new unit, specify an SAU -S model and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. Sizing both ways: dropping to a 63mm bore yields 1559N push at 0.5MPa, while stepping up to 100mm provides 3927N. This cylinder does not hold load without live air—add a pilot-operated check valve for drift prevention. The 30mm stroke is very short, so side-load risks are minimal, but always guide the load to prevent rod bending.
Replacement checklist
Yes, the SU80X30FB is discontinued. The direct replacement is the AirTAC SAU80X30FB. It shares the identical 80mm bore, 30mm stroke, 2513N output force, 3/8" port, and FB mounting interface, so it bolts right into the same application.
At 0.5MPa it provides 2513N push and 2268N pull; 3518N push at 0.7MPa; 4523N at 0.9MPa; and a theoretical max of 513kgf at 1.0MPa. This specific SKU lacks a magnet and cannot accept a sensor. If sensing is required, the SAU replacement offers a -S option compatible with CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X30FB replacement — usually within 7-8 hours.