This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X265S, 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 SU80X265S is a double-acting profile-type standard cylinder with a Ø80mm bore and 265mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X265S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X265S is a discontinued double-acting profile-type cylinder featuring an 80 mm bore and 265 mm stroke. Built with an extruded aluminum barrel, it is shorter and more compact than an ISO 15552 cylinder of the same bore, delivering a push force of 2513 N and pull of 2268 N at 0.5 MPa. The direct replacement is the SAU80X265S, matching the 3/8" port, M20x1.5 rod thread, and SC-series mounting.
The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches; upgrading to the SAU requires current CMSG/DMSG/EMSG sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve, an option the original SU line lacked.
| Model | Airtac SU63-100 Standard Cylinder SU80X265S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X265S |
| Bore size | Ø80 mm |
| Stroke | 265 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 SAU80X265S 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 SAU80X265S 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. |
| ×265 | 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.
Drives heavy-duty sorting flaps on high-speed logistics conveyors, utilizing the 2513 N push force to reliably redirect dense cartons.
Indexes loaded pallets at wrapping stations, where the 128 kg vertical lift capacity and 265 mm stroke provide precise height registration.
Ejects formed metal or plastic components from compact press dies, benefiting from the shorter profile body to fit tight machinery footprints.
To replace this SU80X265S, order the SAU80X265S, confirming the 80 mm bore, 265 mm stroke, 3/8" port, and M20x1.5 rod thread. Specify the thread standard (PT, G, or NPT) and your SC-series mounting (LB, FA, FB, CA, CB, TC). Because this SKU includes the -S magnet, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the new SAU cylinder. If you need integrated flow control, explore the SAUF variant with its built-in valve. For sizing alternatives, a 63 mm bore provides 1559 N push at 0.5 MPa, while a 100 mm bore offers 3927 N. Remember that a plain cylinder does not hold load without live air; use an external rod lock or pilot-operated check valve for secure holding. At 265 mm stroke, ensure adequate guidance to prevent rod bending and side-load wear.
Replacement checklist
Yes, the SU80X265S is discontinued. The direct replacement is the SAU80X265S. It matches the 80 mm bore, 265 mm stroke, 2513 N output force, 3/8" port, and SC-series mounting, ensuring a seamless upgrade.
At 0.5 MPa, push force is 2513 N and pull is 2268 N; at 0.7 MPa push is 3518 N, with a theoretical max of 513 kgf at 1.0 MPa. The -S suffix means it has a magnet for legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X265S replacement — usually within 7-8 hours.