This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X390SFA, 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 SU80X390SFA is a double-acting profile-type standard cylinder with a Ø80mm bore and 390mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X390SFA, which matches its bore, stroke, force and mounting.
The AirTAC SU80X390SFA is a discontinued double-acting profile-type cylinder with an 80mm bore and 390mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa via a 3/8" port. The direct replacement is the SAU80X390SFA, matching the bore, stroke, force, port and SC-series FA mounting.
The SAU upgrade keeps the compact extruded aluminum body but switches the -S magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches, and introduces the SAUF built-in-valve option.
| Model | Airtac SU63-100 Standard Cylinder SU80X390SFA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X390SFA |
| Bore size | Ø80 mm |
| Stroke | 390 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 SAU80X390SFA 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 SAU80X390SFA 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. |
| ×390 | 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 off a main conveyor line using 2513N of thrust at 0.5MPa, guided externally to handle the 390mm stroke.
Ejects dense stamped metal parts from a press bed, relying on adjustable 28mm air cushions to decelerate the tooling at stroke end.
To replace this SU80X390SFA with the SAU80X390SFA, confirm the 80mm bore, 390mm stroke, 3/8" port, M20x1.5 rod thread and FA mounting. If moving down, the 63mm bore gives 1559N push at 0.5MPa; moving up, the 100mm bore provides 3927N. Because this is a 390mm stroke, use an external guide to prevent rod bending and side loads. The -S magnet requires CMSG/DMSG/EMSG sensors on the new SAU. The cushion only decelerates; for load holding on air loss, add an external rod lock or pilot-operated check valve.
Replacement checklist
Yes, the SU80X390SFA is discontinued. The direct replacement is the SAU80X390SFA. It shares the same 80mm bore, 390mm stroke, 3/8" port, output force and SC-series FA mounting, so it drops right into the same application.
At 0.5MPa it pushes 2513N and pulls 2268N; at 0.7MPa it pushes 3518N, with a theoretical max of 513kgf at 1.0MPa. Because this SKU has the -S magnet, note that the SAU replacement upgrades from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X390SFA replacement — usually within 7-8 hours.