This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X350SFA, 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 SU100X350SFA is a double-acting profile-type standard cylinder with a Ø100mm bore and 350mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X350SFA, which matches its bore, stroke, force and mounting.
The AirTAC SU100X350SFA is a discontinued double-acting profile-type cylinder with a 100 mm bore and 350 mm stroke. It delivers 3927 N push force at 0.5 MPa through a 1/2 inch port. AirTAC replaced this legacy unit with the SAU100X350SFA, a direct upgrade retaining the exact body dimensions, stroke, force, port size, and SC-series FA mounting accessory.
This SAU upgrade introduces current CMSG/DMSG/EMSG sensors, replacing the older CS1-B/DS1-B switches used on this -S magnet model, and adds an optional SAUF built-in 4M solenoid valve. Note that a plain cylinder drifts on air loss; the 29 mm cushions only decelerate, so use an external rod lock for holding.
| Model | Airtac SU63-100 Standard Cylinder SU100X350SFA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X350SFA |
| Bore size | Ø100 mm |
| Stroke | 350 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 SAU100X350SFA 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 SAU100X350SFA 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. |
| ×350 | 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.
Provides the 3927 N push at 0.5 MPa required to eject dense metal stampings from a hydraulic press bed safely.
Actuates heavy-duty diverter arms on high-capacity packaging lines, utilizing the FA mount for secure hinge attachment.
To replace the SU100X350SFA, order the SAU100X350SFA, confirming the 100 mm bore, 350 mm stroke, 1/2 inch port, M20x1.5 rod thread, and FA mounting. Because this unit has the -S magnet, you must upgrade to CMSG/DMSG/EMSG sensors as the legacy CS1-B/DS1-B switches are obsolete. If you need integrated air control, the SAUF variant adds a built-in valve the SU lacked. For sizing alternatives, dropping to an 80 mm bore reduces push force to 2513 N at 0.5 MPa, while staying at 100 mm yields 5497 N at 0.7 MPa. At 350 mm stroke, prevent rod bending by supporting side loads with an external guide. Finally, this cylinder will not hold a load without live air; install a pilot-operated check valve or rod lock for secure positioning.
Replacement checklist
Yes, the SU100X350SFA is discontinued. The direct replacement is the SAU100X350SFA. It matches the 100 mm bore, 350 mm stroke, 3927 N force, 1/2 inch port, and SC-series FA mounting. You simply order the SAU equivalent.
At 0.5 MPa it pushes 3927 N and pulls 3681 N; at 0.7 MPa it pushes 5497 N, with a theoretical max of 801 kgf at 1.0 MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X350SFA replacement — usually within 7-8 hours.