This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X273SN, 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 SU100X273SN is a double-acting profile-type standard cylinder with a Ø100mm bore and 273mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X273SN, which matches its bore, stroke, force and mounting.
The AirTAC SU100X273SN is a discontinued double-acting profile-type cylinder with a 100mm bore and 273mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 cylinder of the same bore. It delivers a robust 3927 N push force at 0.5 MPa, making it a heavy-duty choice for high-thrust tasks.
The direct replacement is the SAU100X273SN, matching the bore, stroke, force, 1/2" port, and SC-series mounting. The upgrade introduces current CMSG/DMSG/EMSG sensors to replace this model's legacy CS1-B/DS1-B switches, and adds the SAUF built-in-valve option. This unit features NBR seals (-N) for -20 to +70 C operation.
| Model | Airtac SU63-100 Standard Cylinder SU100X273SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X273SN |
| Bore size | Ø100 mm |
| Stroke | 273 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 SAU100X273SN 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 SAU100X273SN 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. |
| ×273 | 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 large stamping or forming dies requiring substantial thrust, utilizing the 3927 N push force at 0.5 MPa to seat components firmly.
Secures oversized industrial parts during machining or welding, relying on the 1/2" port and 25mm rod for rigid, high-force clamping.
To replace this SU100X273SN, order the SAU100X273SN direct equivalent, verifying the 100mm bore, 273mm stroke, M20x1.5 rod thread, 1/2" port, and SC-series mounting. Because this SKU includes a magnet (-S), note that your legacy CS1-B/DS1-B switches must change to the SAU's CMSG/DMSG/EMSG sensor family. The NBR seal (-N) suits standard temperatures up to 70 C; choose Viton H for 150 C environments. For sizing alternatives, a neighboring 80mm bore provides 2513 N push at 0.5 MPa, while the 100mm hits 5497 N at 0.7 MPa. Remember, a plain cylinder drifts without live air—the 29mm adjustable cushions only decelerate; use an external rod lock or pilot-operated check valve to hold loads. For the 273mm stroke, ensure guide rails prevent rod bending under side loads.
Replacement checklist
Yes, the SU100X273SN is discontinued. The direct replacement is the SAU100X273SN. It matches the original 100mm bore, 273mm stroke, output force, 1/2" port, and SC-series mounting, while adding the SAUF built-in-valve option.
At 0.5 MPa it provides 3927 N push and 3681 N pull; at 0.7 MPa push is 5497 N, and the theoretical max is 801 kgf at 1.0 MPa. This -S SKU has a piston magnet for legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X273SN replacement — usually within 7-8 hours.