This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X20, 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 SU100X20 is a double-acting profile-type standard cylinder with a Ø100mm bore and 20mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X20, which matches its bore, stroke, force and mounting.
The AirTAC SU100X20 is a discontinued double-acting profile-type cylinder with a 100mm bore and 20mm stroke. It delivers 3927 N push force at 0.5 MPa through a 1/2 inch port. AirTAC replaced this end-of-line unit with the SAU100X20, a direct upgrade retaining the exact bore, stroke, output force, port size, and SC-series mounting. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
This non-magnetic SKU cannot accept a sensor. If sensing is needed, the SAU replacement requires CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. The SAU family also adds a SAUF built-in 4M valve option the SU lacked.
| Model | Airtac SU63-100 Standard Cylinder SU100X20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X20 |
| Bore size | Ø100 mm |
| Stroke | 20 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 SAU100X20 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 SAU100X20 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. |
| ×20 | 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.
Ideal for short-stroke stamping tasks needing high force, delivering 3927 N at 0.5 MPa to form thick materials in confined machinery.
Acts as a robust routing gate on heavy-duty conveyors, using its 200 kg vertical lift capacity to pivot or halt palletized goods.
Secures large fabricated steel frames during welding, utilizing the compact profile body and 1/2 inch port for rapid high-pressure clamping.
To replace the SU100X20, order the SAU100X20 direct equivalent, verifying your 1/2 inch port, M20x1.5 rod thread, and SC-series mounting. Because this is a non-S SKU, it cannot hold a sensor; the SAU upgrade uses CMSG/DMSG/EMSG switches. A plain cylinder drifts without live air—the 29mm cushions only decelerate—so add an external rod lock for held loads. For higher force, the 80mm bore offers 2513 N at 0.5 MPa. The short 20mm stroke avoids rod-bending side loads, but if you later scale up, consider the SAUF valve-integrated variant.
Replacement checklist
Yes, the SU100X20 is discontinued. The direct replacement is the SAU100X20. It shares the same 100mm bore, 20mm stroke, 1/2 inch port, force, and SC-series mounting. The SAU body also uses current CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B switches.
The SU100X20 delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a theoretical max of 801 kgf at 1.0 MPa. Because this specific SKU lacks the -S magnet, it cannot accept a sensor; you would need a magnet-equipped SAU100X20S and CMSG/DMSG/EMSG switches for position detection.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X20 replacement — usually within 7-8 hours.