This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X115S, 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 SU63X115S is a double-acting profile-type standard cylinder with a Ø63mm bore and 115mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X115S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X115S is a discontinued double-acting profile-type cylinder featuring a 63mm bore, 115mm stroke, and a built-in piston magnet. It delivers 1559N push and 1402N pull at 0.5MPa, utilizing a 3/8" port and M16x1.5 rod thread. AirTAC replaced this legacy unit with the SAU63X115S, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
Because of its extruded aluminum profile, this cylinder is more compact than an ISO 15552 unit of the same bore. Note that the -S magnet on this SU worked with legacy CS1-B/DS1-B switches, whereas the SAU replacement uses current CMSG/DMSG/EMSG sensors. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU line never offered.
| Model | Airtac SU63-100 Standard Cylinder SU63X115S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X115S |
| Bore size | Ø63 mm |
| Stroke | 115 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 SAU63X115S 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 SAU63X115S 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. |
| ×115 | 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.
Applies the 1559N push force at 0.5MPa for seating bearings, stamping light sheet metal, or securing components during secondary machining operations.
Uses the 115mm stroke to actuate routing gates or pusher arms, redirecting mid-weight cartons between adjacent conveyor lines at high cycling speeds.
To replace this discontinued SU63X115S, order the SAU63X115S direct equivalent, verifying your 3/8" port, M16x1.5 thread, and SC-series mounting hardware. Because this SKU includes the -S magnet, you must upgrade your sensing setup: the legacy CS1-B/DS1-B switches are incompatible with the SAU, requiring current CMSG/DMSG/EMSG sensors. If your application needs integrated flow control, explore the SAUF variant for its built-in valve. For sizing alternatives, a 50mm bore yields 982N push at 0.5MPa, while an 80mm bore provides 2513N. A plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for secure load holding.
Replacement checklist
Yes, the SU63X115S is discontinued. The direct replacement is the AirTAC SAU63X115S. It shares the identical 63mm bore, 115mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application without mechanical modifications.
This double-acting cylinder provides 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a maximum theoretical force of 318kgf at 1.0MPa. Because this is an -S magnet model, it originally used legacy CS1-B/DS1-B switches; when upgrading to the SAU, you must switch to the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X115S replacement — usually within 7-8 hours.