This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X250N, 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 SU100X250N is a double-acting profile-type standard cylinder with a Ø100mm bore and 250mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X250N, which matches its bore, stroke, force and mounting.
The AirTAC SU100X250N is a discontinued double-acting profile-type cylinder with a 100mm bore and 250mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 cylinder of the same bore and delivers 3927 N push force at 0.5 MPa. The direct replacement is the SAU100X250N, which matches the body, bore, stroke, output force, 1/2 inch port, and SC-series mounting. This NBR seal variant operates from -20 to +70 C.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade also introduces the SAUF variant with a built-in 4M solenoid valve, which the SU line never offered.
| Model | Airtac SU63-100 Standard Cylinder SU100X250N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X250N |
| Bore size | Ø100 mm |
| Stroke | 250 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 SAU100X250N 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 SAU100X250N 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. |
| ×250 | 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-duty stamping and forming dies requiring substantial thrust, utilizing the 3927 N push force at 0.5 MPa to shape thick metal components reliably.
Actuates large diverter arms on high-capacity conveyor lines, using the 250mm stroke and robust 25mm piston rod to redirect heavy product flows.
To replace this discontinued SU100X250N with the SAU100X250N, verify the 100mm bore, 250mm stroke, 1/2 inch port, M20x1.5 rod thread, and SC-series mounting. Since this SKU has no -S magnet, it cannot support sensing; if you need position detection on the SAU, order the -S version and note that sensors change from the legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG family. When sizing, check neighboring bores: an 80mm bore gives 2513 N push at 0.5 MPa, while this 100mm bore yields 3927 N. A plain cylinder drifts on air loss—the 29mm adjustable cushion only decelerates near stroke end—so use an external rod lock or pilot-operated check valve for held loads. For high-heat environments beyond 70 C, specify the Viton H seal option on the SAU.
Replacement checklist
Yes, the AirTAC SU100X250N is discontinued and end-of-life. The direct replacement is the SAU100X250N. It offers identical bore, stroke, output force, 1/2 inch port size, and SC-series mounting compatibility, so it fits directly into your existing application.
At 0.5 MPa it provides 3927 N push and 3681 N pull force, increasing to 5497 N push at 0.7 MPa, with a theoretical max of 801 kgf at 1.0 MPa. A plain cylinder does not hold a load without live air—the 29mm adjustable cushions only decelerate the piston—so you must use an external rod lock or pilot-operated check valve for load holding.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X250N replacement — usually within 7-8 hours.