This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X50S, 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 SU63X50S is a double-acting profile-type standard cylinder with a Ø63mm bore and 50mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X50S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X50S is a discontinued double-acting profile-type cylinder with a 63mm bore and 50mm stroke, delivering 1559N push force at 0.5MPa. AirTAC replaced this unit with the SAU63X50S, a direct upgrade retaining the exact 3/8" port, M16x1.5 rod thread, and SC-series mounting.
Because the -S suffix denotes a piston magnet, your legacy CS1-B/DS1-B switches will not carry over; the SAU replacement uses current CMSG/DMSG/EMSG sensors. The extruded aluminum body is shorter than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU63X50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X50S |
| Bore size | Ø63 mm |
| Stroke | 50 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 SAU63X50S 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 SAU63X50S 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. |
| ×50 | 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.
Actuates routing gates on packaging lines, utilizing the 1559N thrust to push heavy cartons firmly into secondary chutes.
Deploys as a robust pneumatic stop for loaded pallets on roller conveyors, safely arresting momentum using adjustable cushions.
Drives medium-duty workholding clamps on machining fixtures, providing reliable 1402N pull force to secure metal components.
To replace this SU63X50S, order the SAU63X50S, confirming the 63mm bore, 50mm stroke, 3/8" port, and PT thread. The direct body keeps your SC-series mounting. If downsizing, a 50mm bore yields 982N push at 0.5MPa; if upsizing, an 80mm bore provides 2513N. Note the -S magnet sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. The cushion only decelerates; use a pilot-operated check valve for load holding. The SAUF variant offers a built-in valve the SU lacked. At 50mm stroke, rod bending is minimal, but ensure adequate side-load guidance.
Replacement checklist
Yes, the SU63X50S is discontinued. The direct replacement is the AirTAC SAU63X50S. It shares the identical 63mm bore, 50mm stroke, output force, 3/8" port, and SC-series mounting, so it fits the same application directly.
At 0.5MPa it provides 1559N push and 1402N pull; at 0.7MPa push is 2182N, with a theoretical max of 318kgf at 1.0MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X50S replacement — usually within 7-8 hours.