This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X490S, 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 SU63X490S is a double-acting profile-type standard cylinder with a Ø63mm bore and 490mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X490S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X490S is a discontinued double-acting profile cylinder with a 63 mm bore and 490 mm stroke. Delivering 1559 N push at 0.5 MPa, its direct replacement is the SAU63X490S, matching the 3/8" port, M16x1.5 rod, and SC-series mounts.
The SAU upgrade retains the compact extruded body but switches the -S magnet to modern CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B. The SAUF variant adds a built-in valve the SU lacked; note that cushions only decelerate, so use an external rod lock for holding.
| Model | Airtac SU63-100 Standard Cylinder SU63X490S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X490S |
| Bore size | Ø63 mm |
| Stroke | 490 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU63X490S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X490S 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). |
|---|---|
| 63 | Bore size in mm. |
| ×490 | 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.
Pushes heavy pallets off a main conveyor line using 1559 N of thrust at 0.5 MPa, with the 490 mm stroke clearing guide rails completely.
Ejects formed metal parts from a 63 mm bore stamping press, absorbing end-of-stroke impact via the 21 mm adjustable air cushions.
To replace this SU63X490S, order the SAU63X490S direct: verify the 63 mm bore, 490 mm stroke, 3/8" port, and SC-series mounting. Because this is a -S model, you must swap legacy CS1-B/DS1-B switches for CMSG/DMSG/EMSG sensors. At 0.5 MPa it yields 1559 N push and 1402 N pull; stepping down to a 50 mm bore drops push to 982 N, while an 80 mm bore raises it to 2513 N. For the 490 mm stroke, use external guides to prevent rod bending from side loads. If you need true load holding on air loss, add a pilot-operated check valve or rod lock, as cushions only decelerate. The SAUF built-in valve option is available if you want self-switching.
Replacement checklist
Yes, the SU63X490S is discontinued. The direct replacement is the SAU63X490S, which shares the same 63 mm bore, 490 mm stroke, 3/8" port, output force, and SC-series mounting accessories.
The SAU63X490S delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a 318 kgf theoretical max at 1.0 MPa. Because this is a -S magnet model, the SAU upgrade requires switching from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X490S replacement — usually within 7-8 hours.