This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X80SFA, 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 SU63X80SFA is a double-acting profile-type standard cylinder with a Ø63mm bore and 80mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X80SFA, which matches its bore, stroke, force and mounting.
The AirTAC SU63X80SFA is a discontinued double-acting profile-type cylinder with an 80 mm stroke and 63 mm bore. It delivers 1559 N push force at 0.5 MPa through a 3/8" port. AirTAC replaced this unit with the SAU63X80SFA, a direct upgrade retaining the exact bore, stroke, output force, port size, and SC-series FA mounting accessory.
Because the barrel is an extruded aluminum profile rather than a tie-rod assembly, it is shorter and more compact than an ISO 15552 cylinder of the same bore. The built-in magnet (-S) on this legacy unit worked with CS1-B/DS1-B switches, but the SAU replacement requires current CMSG/DMSG/EMSG sensors. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered.
| Model | Airtac SU63-100 Standard Cylinder SU63X80SFA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X80SFA |
| Bore size | Ø63 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU63X80SFA carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X80SFA 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). |
|---|---|
| 63 | Bore size in mm. |
| ×80 | 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 on machining fixtures using 1559 N of push force at 0.5 MPa.
Actuates routing gates on high-speed packaging lines where the compact 80 mm stroke fits tight spaces.
Deploys a heavy-duty stop block to halt loaded pallets on roller conveyors via the FA mount.
To replace this discontinued SU63X80SFA, order the SAU63X80SFA. Confirm the 63 mm bore, 80 mm stroke, 3/8" port, M16x1.5 rod thread, and the FA mounting interface are correct for your machine. If your application needs position sensing, note that your old CS1-B/DS1-B switches will not fit the SAU; you must upgrade to CMSG/DMSG/EMSG sensors. For force verification, this bore provides 1559 N push at 0.5 MPa; if you need less force, step down to a 50 mm bore (982 N push), or step up to an 80 mm bore (2513 N push) for heavier loads. A plain cylinder drifts if air pressure drops, so use an external rod lock or pilot-operated check valve for secure load holding. If your cycle demands integrated flow control, explore the SAUF valve-integrated variant.
Replacement checklist
Yes, the AirTAC SU63X80SFA is discontinued. The direct replacement is the SAU63X80SFA. It shares the identical 63 mm bore, 80 mm stroke, 3/8" port, and SC-series FA mounting, so it installs directly into the same application without modifications.
At 0.5 MPa it provides 1559 N push and 1402 N pull force, increasing to 2182 N push at 0.7 MPa, with a theoretical maximum of 318 kgf at 1.0 MPa. The -S magnet on this legacy model requires CS1-B/DS1-B switches; the SAU replacement upgrades to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X80SFA replacement — usually within 7-8 hours.