This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X245, 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 SU80X245 is a double-acting profile-type standard cylinder with a Ø80mm bore and 245mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X245, which matches its bore, stroke, force and mounting.
The AirTAC SU80X245 is a discontinued double-acting profile-type cylinder with an 80 mm bore and a 245 mm stroke. It delivers 2513 N of push force at 0.5 MPa, utilizing a 25 mm piston rod and a 3/8" port. Because this SU model has reached end-of-life, AirTAC recommends the SAU80X245 as the direct replacement, preserving the original body profile, output force, port size, and SC-series mounting compatibility.
Buyers gain two notable upgrades by moving to the SAU equivalent. First, the legacy CS1-B and DS1-B sensors are replaced by the current CMSG, DMSG, or EMSG switch families. Second, the SAU line introduces a SAUF variant with a built-in 4M solenoid valve that the older SU series never offered.
| Model | Airtac SU63-100 Standard Cylinder SU80X245 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X245 |
| Bore size | Ø80 mm |
| Stroke | 245 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 SAU80X245 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 SAU80X245 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. |
| ×245 | 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.
Handles large product routing on heavy-duty packaging lines where the 2513 N push force easily deflects heavy pallets or totes.
Acts as a robust pneumatic stop for roller conveyors, using its 128 kg vertical lift capacity to manage substantial accumulated mass.
Ejects dense molded or stamped parts from machinery, benefiting from the 28 mm adjustable air cushions to brake the load at stroke end.
To replace the discontinued SU80X245, order the SAU80X245 direct equivalent, ensuring you keep the 80 mm bore, 245 mm nonstandard stroke, 3/8" port, M20x1.5 rod thread, and SC-series mounting. Because this is a non-magnet SKU, it cannot accept a magnetic sensor; if sensing is required, you must migrate to an SAU-S model and use CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B. For sizing alternatives, dropping to a 63 mm bore yields 1559 N push at 0.5 MPa, while stepping up to a 100 mm bore provides 3927 N. Remember that a standard cylinder does not hold load without live air—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for vertical holding. At 245 mm stroke, ensure adequate guidance to prevent rod bending under side loads.
Replacement checklist
Yes, the AirTAC SU80X245 is discontinued. The direct replacement is the SAU80X245, which matches the 80 mm bore, 245 mm stroke, 2513 N force, 3/8" port, and SC-series mounting. The SAU body is fully compatible with your existing setup.
At 0.5 MPa it pushes 2513 N and pulls 2268 N; at 0.7 MPa it pushes 3518 N, with a theoretical max of 513 kgf at 1.0 MPa. This specific non-magnet SKU cannot accept a sensor; if you need position detection, order the SAU80X245-S and use CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X245 replacement — usually within 7-8 hours.