This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X475S, 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 SU80X475S is a double-acting profile-type standard cylinder with a Ø80mm bore and 475mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X475S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X475S is a discontinued double-acting profile-type cylinder with an 80 mm bore and 475 mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa, operating at 30-800 mm/s through a 3/8" port. AirTAC replaced this legacy unit with the SAU80X475S, a direct upgrade retaining the exact bore, stroke, force, port size, and SC-series mounting footprint.
The SAU upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches found on this -S model, and introduces the SAUF built-in-valve variant the SU line lacked. Note that a plain cylinder drifts on air loss; the cushions only decelerate, so use an external rod lock for held loads.
| Model | Airtac SU63-100 Standard Cylinder SU80X475S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X475S |
| Bore size | Ø80 mm |
| Stroke | 475 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU80X475S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAU80X475S 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). |
|---|---|
| 80 | 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 off a main conveyor line using 2513 N of thrust at 0.5 MPa, with the 475 mm stroke clearing the belt width completely.
Ejects formed metal parts from a hydraulic press, relying on the 28 mm adjustable air cushions to decelerate the rod smoothly at stroke end.
To replace the SU80X475S, order the SAU80X475S direct equivalent, verifying the 80 mm bore, 475 mm stroke, M20x1.5 rod thread, 3/8" port, and SC-series mounting (LB/FA/FB/CA/CB). Because this SKU includes a magnet (-S), you must switch from the old CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG sensor family. If you need integrated flow control, the SAUF variant adds a built-in 4M solenoid valve the original SU lacked. For loads needing 3518 N push at 0.7 MPa, this 80 mm bore fits; sizing down to a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore offers 3927 N. With a 475 mm stroke, prevent rod bending by guiding the load externally to avoid side-load forces. Remember that standard cylinders drift without air; add a pilot-operated check valve or rod lock if the load must be held.
Replacement checklist
Yes, the SU80X475S is discontinued. The direct replacement is the AirTAC SAU80X475S. It shares the identical 80 mm bore, 475 mm stroke, output force, 3/8" port, and SC-series mounting accessories, so it bolts right in. The main change is that the SAU uses CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B switches.
The 80 mm bore uses a 3/8" port with a 25 mm piston rod. It generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa. The cushions only decelerate the load; they do not hold it in place without live air pressure.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X475S replacement — usually within 7-8 hours.