This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X45S, 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 SU100X45S 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 SAU100X45S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X45S is a discontinued double-acting profile-type cylinder with a 100mm bore and 45mm stroke. Delivering 3927 N push force at 0.5 MPa, it features an extruded aluminum barrel and adjustable air cushions at both ends. AirTAC replaced this legacy unit with the SAU100X45S, a direct replacement retaining the exact 1/2" port, M20x1.5 rod thread, and SC-series mounting compatibility.
Because this SKU includes a magnet (-S), it originally used CS1-B/DS1-B switches; upgrading to the SAU requires switching to current CMSG/DMSG/EMSG sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve, an option the SU line never offered.
| Model | Airtac SU63-100 Standard Cylinder SU100X45S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X45S |
| 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 SAU100X45S 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 SAU100X45S 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.
Ideal for driving heavy stamping dies with 3927 N of thrust at 0.5 MPa, utilizing the compact profile body to save space in tight press frames.
Secures heavy steel components during machining using the robust 25mm piston rod, with adjustable cushions absorbing end-of-stroke impact.
To replace this discontinued SU100X45S, order the SAU100X45S, confirming the 100mm bore, 45mm stroke, 1/2" port, and PT/G/NPT thread choice. Reuse your existing SC-series mounting accessories. If stepping down to an 80mm bore, expect a drop to 2513 N push at 0.5 MPa; stepping up is unnecessary as 100mm is the largest standard profile size. The -S magnet means you must swap legacy CS1-B/DS1-B switches for CMSG/DMSG/EMSG sensors on the SAU. A plain cylinder drifts without live air—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for held loads. Consider the SAUF model if you need a built-in valve. Since the stroke is under 300mm, rod bending is minimal, but ensure the load is guided.
Replacement checklist
Yes, the AirTAC SU100X45S is discontinued. The direct replacement is the SAU100X45S. It matches the 100mm bore, 45mm stroke, 1/2" port, output force, and SC-series mounting, so it fits the same application. You just order the SAU equivalent.
The 100mm bore provides 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a theoretical max of 801 kgf at 1.0 MPa. Because this SU100X45S has a magnet (-S), it used legacy 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 SAU100X45S replacement — usually within 7-8 hours.