This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X625S, 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 SU100X625S is a double-acting profile-type standard cylinder with a Ø100mm bore and 625mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X625S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X625S is a discontinued double-acting profile cylinder featuring a 100 mm bore, 625 mm stroke, and a 1/2" port. Delivering 3927 N of push force at 0.5 MPa, it is replaced by the exact direct replacement SAU100X625S, which matches the original body, bore, stroke, output force, port, and SC-series mounting.
When upgrading to the SAU100X625S, the magnet-equipped -S piston shifts from legacy CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG sensor family. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU series lacked.
| Model | Airtac SU63-100 Standard Cylinder SU100X625S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X625S |
| Bore size | Ø100 mm |
| Stroke | 625 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 SAU100X625S 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 SAU100X625S 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. |
| ×625 | 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 pushing heavy 200 kg pallet loads transversely on conveyors, utilizing the 3927 N push force at 0.5 MPa to overcome sliding friction reliably.
Provides robust ejection of formed metal or plastic parts from press beds, where the 625 mm stroke reaches deep into the mold cavity without requiring an extension.
To replace the SU100X625S, order the SAU100X625S and verify the 100 mm bore, 625 mm stroke, 1/2" port, M20x1.5 rod thread, and SC-series mounting. Because this SKU includes a magnet, note that the legacy CS1-B/DS1-B switches must be swapped for CMSG/DMSG/EMSG sensors on the SAU. If you need a self-switching cylinder, consider the SAUF valve-integrated variant. For load sizing, the neighboring 80 mm bore yields 2513 N push at 0.5 MPa, while the 100 mm bore reaches 5497 N at 0.7 MPa. Remember that a plain cylinder drifts without live air, as the adjustable 29 mm cushions only decelerate; use an external rod lock or pilot-operated check valve for held loads. Finally, the 625 mm stroke demands an external guide to prevent rod bending and side-load damage.
Replacement checklist
Yes, the SU100X625S is discontinued. The direct replacement is the AirTAC SAU100X625S. It shares the identical 100 mm bore, 625 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 force, increasing to 5497 N at 0.7 MPa, with a theoretical maximum of 801 kgf at 1.0 MPa. Because this is a -S magnet model, the original SU used CS1-B/DS1-B switches; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X625S replacement — usually within 7-8 hours.