This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X320S, 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 SU80X320S is a double-acting profile-type standard cylinder with a Ø80mm bore and 320mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X320S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X320S is a discontinued double-acting profile-type cylinder with an 80mm bore and 320mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa, making way for the direct replacement: the SAU80X320S. The SAU retains the identical extruded aluminium body, 3/8" port, M20x1.5 rod thread, and SC-series mounting, ensuring a seamless swap.
This compact profile body is shorter than a standard ISO 15552 cylinder of the same bore. Because this SKU includes the -S magnet, note that the legacy CS1-B/DS1-B switches are retired; the SAU replacement uses the current CMSG/DMSG/EMSG sensor family. Additionally, the SAU line introduces a SAUF variant with a built-in 4M solenoid valve that the SU series never offered.
| Model | Airtac SU63-100 Standard Cylinder SU80X320S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X320S |
| Bore size | Ø80 mm |
| Stroke | 320 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 SAU80X320S 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 SAU80X320S 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. |
| ×320 | 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 at 0.5 MPa using a 2513 N thrust, with the 320mm stroke clearing wide conveyor frames.
Ejects dense stamped parts from a press bed, relying on the 28mm adjustable air cushions to decelerate the rod at stroke end.
To replace this discontinued SU80X320S, order the SAU80X320S. Verify your 80mm bore, 320mm stroke, 3/8" port, and thread type (PT, G, or NPT). The SC-series mounting accessories (LB, FA, FB, CA, CB) transfer over directly. Since this is an -S model, you must upgrade your sensors: the old CS1-B/DS1-B switches will not fit the SAU, so select CMSG, DMSG, or EMSG switches. If you need faster actuation, consider the SAUF variant with its integrated valve. For sizing alternatives, dropping to a 63mm bore yields 1559 N push at 0.5 MPa, while stepping up to 100mm provides 3927 N. At 320mm stroke, prevent rod bending by using an external guide to absorb side loads. Finally, a plain cylinder drifts on air loss—the cushions only decelerate—so add an external rod lock or pilot-operated check valve for load holding.
Replacement checklist
Yes, the SU80X320S is discontinued. The direct replacement is the AirTAC SAU80X320S. It shares the identical 80mm bore, 320mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application without mechanical changes.
At 0.5 MPa it provides 2513 N push and 2268 N pull; at 0.7 MPa it pushes 3518 N, and the theoretical maximum is 513 kgf at 1.0 MPa. Because this is an -S model with a piston magnet, it originally used CS1-B/DS1-B switches. On the SAU replacement, you must switch to the current CMSG, DMSG, or EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X320S replacement — usually within 7-8 hours.