This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X50S, 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 SU100X50S is a double-acting profile-type standard cylinder with a Ø100mm bore and 50mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X50S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X50S is a discontinued double-acting profile-type cylinder with a 100mm bore and 50mm stroke. Delivering 3927N push force at 0.5MPa, it uses an extruded aluminum barrel that is more compact than an ISO 15552 cylinder of the same size. AirTAC replaced this legacy unit with the SAU100X50S, a direct replacement retaining the exact bore, stroke, 1/2" port, and SC-series mounting.
When upgrading to the SAU100X50S, your CS1-B/DS1-B legacy switches must change to the current CMSG/DMSG/EMSG sensor family. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve, an option the SU never offered. Note that a standard cylinder drifts without live air; use an external rod lock for held loads.
| Model | Airtac SU63-100 Standard Cylinder SU100X50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X50S |
| Bore size | Ø100 mm |
| Stroke | 50 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 SAU100X50S 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 SAU100X50S 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. |
| ×50 | 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 dies in automated metal stamping lines, utilizing the 3927N push force at 0.5MPa to form thick gauge materials reliably.
Actuates high-capacity lane diverters for loaded pallets, where the 200kg vertical lift capacity and compact profile body handle substantial mass safely.
Ejects dense molded plastic components from heavy machinery, relying on the 1/2" air port and 29mm adjustable cushion to absorb high impact forces.
To replace the discontinued SU100X50S, order the SAU100X50S direct equivalent, verifying your 1/2" port, M20x1.5 rod thread, and SC-series mounting hardware. Because this SKU includes the -S magnet, you must upgrade your position sensors from the old CS1-B/DS1-B style to the modern CMSG/DMSG/EMSG switches. If your application requires integrated flow control, explore the SAUF variant featuring a built-in 4M valve. Sizing both ways: dropping to an 80mm bore yields 2513N push at 0.5MPa, while staying at 100mm gives 5497N at 0.7MPa. Remember, the adjustable air cushion only decelerates the piston; it does not lock the load. For secure holding during air loss, install a pilot-operated check valve or external rod lock.
Replacement checklist
Yes, the SU100X50S is discontinued. The direct replacement is the AirTAC SAU100X50S. It shares the exact 100mm bore, 50mm stroke, 1/2" port, output force, and SC-series mounting, so it fits the same application without mechanical modifications.
At 0.5MPa it provides 3927N push and 3681N pull force, 5497N push at 0.7MPa, and a maximum theoretical force of 801kgf at 1.0MPa. Because this is the -S magnet version, note that 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 SAU100X50S replacement — usually within 7-8 hours.