This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X475, 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 SU63X475 is a double-acting profile-type standard cylinder with a Ø63mm bore and 475mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X475, which matches its bore, stroke, force and mounting.
The AirTAC SU63X475 is a discontinued double-acting profile-type cylinder with a 63 mm bore and 475 mm stroke. It delivers 1559 N push force at 0.5 MPa through a 3/8" port. AirTAC replaced this unit with the SAU63X475, a direct upgrade retaining the exact body dimensions, stroke, output force, port size and SC-series mounting.
Because this 475 mm stroke lacks the -S suffix, it has no magnet and cannot accept a sensor. If sensing is needed on the SAU replacement, note that the legacy CS1-B/DS1-B switches are replaced by the current CMSG/DMSG/EMSG family. The extruded aluminium profile is shorter than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU63X475 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X475 |
| Bore size | Ø63 mm |
| Stroke | 475 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 SAU63X475 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 SAU63X475 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. |
| ×475 | 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 sideways on a packaging line using the 1559 N thrust at 0.5 MPa, with the 475 mm stroke clearing the conveyor width.
Raises a 79 kg access gate using the calculated safe vertical lift margin, relying on an external check valve to hold the load securely.
Ejects machined metal parts from a fixture, utilizing the 21 mm adjustable air cushions at both ends to decelerate the rapid ejection cycle.
To replace the SU63X475, order the SAU63X475. Confirm the 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB, FA, FB, CA, CB) match your existing jig. If sizing alternatives, the adjacent 50 mm bore yields 982 N push at 0.5 MPa, while the 80 mm bore provides 2513 N. For this 475 mm stroke, use an external guide to prevent rod bending and side-load damage. A plain cylinder drifts on air loss—the cushions only decelerate—so fit an external rod lock or pilot-operated check valve for load holding. The SAUF variant adds a built-in 4M solenoid valve the SU lacked.
Replacement checklist
Yes, the SU63X475 is discontinued. The direct replacement is the AirTAC SAU63X475. It shares the same 63 mm bore, 475 mm stroke, 3/8" port, output force and SC-series mounting, so it fits the same application without mechanical modifications.
The bore delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a theoretical maximum of 318 kgf at 1.0 MPa. This specific SKU has no magnet (-S), so it cannot accept a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X475 replacement — usually within 7-8 hours.