This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X750S, 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 SU63X750S is a double-acting profile-type standard cylinder with a Ø63mm bore and 750mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X750S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X750S is a discontinued double-acting profile-type cylinder with a 63 mm bore and 750 mm stroke. Delivering 1559 N push force at 0.5 MPa, its direct replacement is the SAU63X750S, retaining the same body, 3/8" port, M16x1.5 rod thread, and SC-series mounting compatibility.
The SAU upgrade switches the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches and introduces the SAUF built-in-valve variant. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU63X750S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X750S |
| Bore size | Ø63 mm |
| Stroke | 750 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 SAU63X750S 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 SAU63X750S 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. |
| ×750 | 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 750 mm stroke conveyor lane using the 1559 N thrust class, requiring external guides to prevent rod bending over the long travel.
Shifts machining fixtures between stations over 750 mm, where the compact profile body saves space and the adjustable 21 mm cushions decelerate the 63 mm piston smoothly.
To replace this SU63X750S, order the SAU63X750S direct equivalent, confirming the 63 mm bore, 750 mm stroke, 3/8" port, and SC-series mounting. Because the -S magnet is present, note that your legacy CS1-B/DS1-B switches must be replaced by CMSG/DMSG/EMSG sensors on the SAU. If sizing alternatives, the adjacent 50 mm bore yields 982 N push at 0.5 MPa, while the 80 mm bore provides 2513 N. A plain cylinder does not hold load without live air; use an external rod lock or pilot-operated check valve for holding. At a 750 mm stroke, prevent rod bending by guiding the load externally to avoid side-load forces. The SAUF variant adds a built-in 4M solenoid valve if self-switching is desired.
Replacement checklist
Yes, the SU63X750S is discontinued. The direct replacement is the AirTAC SAU63X750S. It matches the 63 mm bore, 750 mm stroke, 1559 N force, 3/8" port, and SC-series mounting. The SAU also adds the SAUF built-in-valve option.
At 0.5 MPa it pushes 1559 N and pulls 1402 N; at 0.7 MPa it pushes 2182 N, with a theoretical max of 318 kgf at 1.0 MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement requires current CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X750S replacement — usually within 7-8 hours.