This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X175S, 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 SU63X175S is a double-acting profile-type standard cylinder with a Ø63mm bore and 175mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X175S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X175S is a discontinued double-acting profile-type cylinder with a 63 mm bore and 175 mm stroke. Built with an extruded aluminum barrel and adjustable air cushions at both ends, it is more compact than an ISO 15552 cylinder of the same bore.
Because this SU model is end-of-life, you should order the direct replacement: the SAU63X175S. The SAU shares the same body profile, bore, stroke, 3/8" port, M16x1.5 rod thread, and SC-series mounting. The SAU upgrade does change the sensor family from the legacy CS1-B/DS1-B switches used on this -S magnet model to the current CMSG/DMSG/EMSG switches, and it introduces the SAUF built-in 4M solenoid valve option that the SU line never had.
| Model | Airtac SU63-100 Standard Cylinder SU63X175S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X175S |
| Bore size | Ø63 mm |
| Stroke | 175 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 SAU63X175S 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 SAU63X175S 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. |
| ×175 | 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 medium-weight cartons off a main conveyor line using 1559 N of thrust at 0.5 MPa, with the 175 mm stroke clearing the belt edge.
Acts as a pneumatic stop for incoming pallets on a roller conveyor, absorbing impact via the adjustable 21 mm air cushions at both ends.
To replace this discontinued SU63X175S, order the SAU63X175S direct equivalent. Confirm the 3/8" port, PT/G/NPT thread choice, and your SC-series mounting hardware (LB/FA/FB/CA/CB) all carry over directly. Because this SKU includes the -S magnet, note that your legacy CS1-B/DS1-B switches must be replaced by CMSG/DMSG/EMSG sensors on the SAU. For sizing alternatives, a 50 mm bore gives 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. Remember that a plain cylinder does not hold load on air loss—the cushion only decelerates—so use an external rod lock or pilot-operated check valve for suspended loads. At 175 mm stroke, rod bending is minimal, but always guide the load to prevent side-load wear.
Replacement checklist
Yes, the SU63X175S is discontinued. The direct replacement is the AirTAC SAU63X175S. It matches the 63 mm bore, 175 mm stroke, 3/8" port, output force, and SC-series mounting. You simply order the SAU equivalent, though the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B switches.
The 3/8" port bore 63 mm cylinder provides 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N push at 0.9 MPa, and a theoretical maximum of 318 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, and speed ranges from 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X175S replacement — usually within 7-8 hours.