This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X55, 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 SU100X55 is a double-acting profile-type standard cylinder with a Ø100mm bore and 55mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X55, which matches its bore, stroke, force and mounting.
The AirTAC SU100X55 is a discontinued double-acting profile-type cylinder with a 100 mm bore and 55 mm stroke. It delivers 3927 N push force at 0.5 MPa through a 1/2" port. AirTAC replaced this EOL unit with the SAU100X55, a direct replacement retaining the exact bore, stroke, output force, port size and SC-series mounting.
Because this is a non-magnet SKU, it cannot accept a sensor. The SAU upgrade also introduces the SAUF variant with a built-in 4M solenoid valve, which the SU line lacked.
| Model | Airtac SU63-100 Standard Cylinder SU100X55 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X55 |
| Bore size | Ø100 mm |
| Stroke | 55 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 SAU100X55 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 SAU100X55 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. |
| ×55 | 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.
Applies up to 3927 N at 0.5 MPa for seating bearings and forming heavy components securely.
Holds large workpieces stationary during machining with a robust 100 mm bore profile body.
To replace the discontinued SU100X55, order the SAU100X55. Confirm your 1/2" port thread (PT, G or NPT) and SC-series mounting accessories (LB, FA, FB, CA, CB) as these remain identical. This non-magnet SKU cannot host a switch; if you need position sensing on the SAU, order an -S model and note that sensors change from the legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG family. For loads needing 3927 N push at 0.5 MPa, the 100 mm bore is ideal, whereas an 80 mm bore offers 2513 N. A plain cylinder drifts on air loss; use an external rod lock or pilot-operated check valve for load holding. The SAUF valve-integrated option is also available if you want self-switching.
Replacement checklist
Yes, the AirTAC SU100X55 is discontinued. The direct replacement is the SAU100X55. It shares the identical 100 mm bore, 55 mm stroke, 1/2" port, output force and SC-series mounting, so it fits the same application directly.
At 0.5 MPa it provides 3927 N push and 3681 N pull; at 0.7 MPa it pushes 5497 N, with a theoretical max of 801 kgf at 1.0 MPa. This specific SKU lacks a magnet, meaning it cannot accept a sensor. The SAU replacement with a magnet (-S) uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X55 replacement — usually within 7-8 hours.