This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X45, 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 SU100X45 is a double-acting profile-type standard cylinder with a Ø100mm bore and 45mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X45, which matches its bore, stroke, force and mounting.
The AirTAC SU100X45 is a discontinued double-acting profile-type cylinder with a 100mm bore and 45mm stroke. It delivers a push force of 3927 N and pull of 3681 N at 0.5 MPa, operating via a 1/2" port with a 25mm rod. AirTAC replaced this legacy unit with the SAU100X45, a direct upgrade sharing the exact same body profile, stroke, output force, port size, and SC-series mounting accessories.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU replacement also omits a magnet but introduces compatibility with modern CMSG/DMSG/EMSG switches if you order the -S version, replacing the legacy CS1-B/DS1-B sensors.
| Model | Airtac SU63-100 Standard Cylinder SU100X45 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X45 |
| Bore size | Ø100 mm |
| Stroke | 45 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 SAU100X45 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 SAU100X45 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. |
| ×45 | 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 tooling dies with 3927 N of push force at 0.5 MPa, utilizing the 45mm stroke for high-impact metal forming operations.
Secures heavy industrial molds using the 25mm piston rod and 1/2" air port, relying on adjustable 29mm cushions to absorb sudden pressure spikes.
To replace this discontinued SU100X45, order the SAU100X45. Confirm your 1/2" port thread (PT, G, or NPT), M20x1.5 rod-end thread, and SC-series mounting hardware (LB, FA, FB, CA, CB, TC) which carry over directly. If you need position sensing, note this non-magnetic SKU cannot take a switch, and the SAU -S variant requires new CMSG/DMSG/EMSG sensors rather than the old CS1-B/DS1-B. For heavy loads, step down to the 80mm bore (2513 N push @0.5 MPa) for a smaller footprint, or up to custom bores if more force is needed. Since this is a plain cylinder, it will not hold a load without live air—the 29mm adjustable cushions only decelerate at stroke end, so add an external rod lock or pilot-operated check valve for vertical safety. The SAUF variant adds a built-in 4M solenoid valve the SU line never offered.
Replacement checklist
Yes, the SU100X45 is discontinued. The direct replacement is the AirTAC SAU100X45. It matches the 100mm bore, 45mm stroke, 1/2" port, force output, and SC-series mounting dimensions perfectly, so no mechanical modifications are needed.
This 100mm bore cylinder features a 1/2" air port. It generates a push force of 3927 N and a pull force of 3681 N at 0.5 MPa. At 0.7 MPa the push is 5497 N, and the theoretical maximum force is 801 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X45 replacement — usually within 7-8 hours.