This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X350SFB, 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 SU80X350SFB is a double-acting profile-type standard cylinder with a Ø80mm bore and 350mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X350SFB, which matches its bore, stroke, force and mounting.
The AirTAC SU80X350SFB is a discontinued double-acting profile-type cylinder with an 80mm bore and 350mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa, peaking at 513 kgf. The direct replacement is the SAU80X350SFB, matching the bore, stroke, force, 3/8" port, and SC-series FB mounting.
The SAU upgrade switches the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches, and introduces the SAUF valve-integrated option. The extruded aluminum body is more compact than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU80X350SFB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X350SFB |
| Bore size | Ø80 mm |
| Stroke | 350 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 SAU80X350SFB 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 SAU80X350SFB 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. |
| ×350 | 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 or totes off a high-throughput line using the 2513 N push force at 0.5 MPa with FB mounting.
Shifts loaded pallets laterally over 350mm, relying on external guides to prevent rod bending during transfer.
To replace this discontinued SU80X350SFB, order the SAU80X350SFB direct equivalent, verifying the 80mm bore, 350mm stroke, 3/8" port, M20x1.5 rod thread, and FB mounting. Because the -S magnet is present, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the SAU. If you need integrated flow control, the SAUF variant adds a built-in 4M solenoid valve the SU lacked. For sizing alternatives, dropping to a 63mm bore yields 1559 N push @0.5 MPa, while an 100mm bore provides 3927 N. A plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock or pilot-operated check valve to hold loads. Finally, the 350mm stroke requires external guides to prevent rod bending under side loads.
Replacement checklist
Yes, the SU80X350SFB is discontinued. The direct replacement is the SAU80X350SFB, which matches the 80mm bore, 350mm stroke, force, 3/8" port, and FB mounting. You must upgrade your -S sensors from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG switches.
It features a 3/8" port. The force output is 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical max of 513 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X350SFB replacement — usually within 7-8 hours.