This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X850S, 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 SU100X850S is a double-acting profile-type standard cylinder with a Ø100mm bore and 850mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X850S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X850S is a discontinued double-acting profile-type cylinder with an 850 mm stroke and 100 mm bore. It delivers 3927 N of push force at 0.5 MPa through a 1/2" port. AirTAC replaced this unit with the SAU100X850S, a direct upgrade retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
The SAU upgrade modernizes the sensor system: this SU's -S magnet used legacy CS1-B/DS1-B switches, whereas the SAU requires current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve the SU lacked.
| Model | Airtac SU63-100 Standard Cylinder SU100X850S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X850S |
| Bore size | Ø100 mm |
| Stroke | 850 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 SAU100X850S 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 SAU100X850S 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. |
| ×850 | 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.
Actuates heavy package diverter arms across wide 850 mm sorting belts, requiring external guide rails to prevent rod bending during the extended travel.
Pushes finished metal components out of industrial stamping presses, utilizing the 7068 N thrust available at 0.9 MPa for reliable heavy-duty ejection.
To replace this SU100X850S, order the SAU100X850S direct equivalent. Verify your 1/2" port thread (PT, G, or NPT), M20x1.5 rod-end connection, and SC-series mounting hardware (LB, FA, FB, CA, CB, TC). Because this SKU includes the -S magnet, you must upgrade your legacy CS1-B/DS1-B switches to the CMSG/DMSG/EMSG family. If you need self-switching, consider the SAUF valve-integrated option. For the 850 mm stroke, add external guides to prevent rod bending and side-load wear. If downsizing, a 80 mm bore yields 2513 N push at 0.5 MPa; if upsizing is needed, this 100 mm bore provides 7068 N at 0.9 MPa. Note that a plain cylinder drifts without live air; use an external rod lock or pilot-operated check valve for secure load holding.
Replacement checklist
Yes, the SU100X850S is discontinued. The direct replacement is the AirTAC SAU100X850S. It matches the 100 mm bore, 850 mm stroke, 1/2" port, output force, and SC-series mounting. You simply order the SAU100X850S as a direct physical replacement.
At 0.5 MPa it provides 3927 N push and 3681 N pull; at 0.7 MPa it pushes 5497 N, and the theoretical maximum is 801 kgf at 1.0 MPa. Because this is an -S magnet model, it originally used CS1-B/DS1-B switches; when upgrading to the SAU replacement, you must switch to the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X850S replacement — usually within 7-8 hours.