This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X390S, 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 SU63-100 Standard Cylinder SU100X390S is a double-acting profile-type standard cylinder with a Ø100mm bore and 390mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X390S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X390S is a discontinued double-acting profile-type cylinder with a 100mm bore and 390mm stroke. Delivering 3927N push force at 0.5MPa, it uses a 25mm rod and 1/2" port. AirTAC replaced it with the SAU100X390S, a direct upgrade retaining the exact bore, stroke, force, and SC-series mounting.
The SAU replacement modernizes the sensor groove to accept CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B reed sensors on this -S SKU, and introduces the SAUF valve-integrated option. Note that plain cylinders drift without live air; use an external rod lock for holding.
| Model | Airtac SU63-100 Standard Cylinder SU100X390S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X390S |
| Bore size | Ø100 mm |
| Stroke | 390 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU100X390S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAU100X390S 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). |
|---|---|
| 100 | 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.
Drives heavy tooling in a press, utilizing the 3927N push force at 0.5MPa to form thick metal components reliably.
Moves heavy injection molds between stations, where the 390mm stroke accommodates long travel distances.
To replace this discontinued SU100X390S, order the SAU100X390S direct equivalent, verifying your 1/2" port, M20x1.5 rod thread, and SC-series mounts (LB/FA/FB/CA/CB). Because this -S model has a magnet, you must upgrade your switches from CS1-B/DS1-B to the current CMSG/DMSG/EMSG family. If you need integrated flow control, the SAUF variant adds a built-in 4M solenoid valve the SU lacked. Sizing alternatives: stepping down to an 80mm bore yields 2513N push at 0.5MPa, while staying at 100mm gives 5497N at 0.7MPa. At 390mm stroke, prevent rod bending by guiding the load externally. For load holding on air loss, add a pilot-operated check valve, as cushions only decelerate.
Replacement checklist
Yes, the AirTAC SU100X390S is discontinued. The direct replacement is the SAU100X390S. It shares the same 100mm bore, 390mm stroke, 1/2" port, and SC-series mounting accessories. You simply order the SAU equivalent.
At 0.5MPa it provides 3927N push and 3681N pull; 5497N at 0.7MPa; and a theoretical max of 801kgf at 1.0MPa. Because your SU has a -S magnet, note that the SAU replacement requires upgrading 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 SAU100X390S replacement — usually within 7-8 hours.