This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X250, 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 SU100X250 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 SAU100X250, which matches its bore, stroke, force and mounting.
The AirTAC SU100X250 is a discontinued double-acting profile-type cylinder with a 100mm bore and 250mm stroke. Delivering 3927 N push force at 0.5 MPa, it uses an extruded aluminum barrel and adjustable air cushions. The direct replacement is the SAU100X250, matching the 1/2" port, M20x1.5 rod thread, output force, and SC-series mounting.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade adds CMSG/DMSG/EMSG switch compatibility and a new SAUF built-in 4M valve option.
| Model | Airtac SU63-100 Standard Cylinder SU100X250 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X250 |
| 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 SAU100X250 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 SAU100X250 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 the full 3927 N push force at 0.5 MPa with stable 250mm travel.
Secures large injection molds or heavy fixtures, using the 1/2" port for high flow to maintain 30-800 mm/s speed.
To replace this SU100X250, order the SAU100X250 with the same 250mm stroke, 1/2" port, and SC-series mounting. This non-magnet SKU cannot take a switch, but if sensing is needed, the SAU uses CMSG/DMSG/EMSG sensors. Sizing both ways: dropping to an 80mm bore gives 2513 N push at 0.5 MPa, while this 100mm bore provides 5497 N at 0.7 MPa. Note that a plain cylinder drifts without live air; use an external rod lock or pilot-operated check valve for held loads. The SAUF valve-integrated variant is an option if you need self-switching.
Replacement checklist
Yes, the SU100X250 is discontinued. The direct replacement is the AirTAC SAU100X250. It matches the 100mm bore, 250mm stroke, 1/2" port, M20x1.5 thread, output force, and SC-series mounting.
It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and 801 kgf max at 1.0 MPa. The air cushion only decelerates; without live air the cylinder drifts, so use an external rod lock for held loads.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X250 replacement — usually within 7-8 hours.