This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X265S, 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 SU63X265S is a double-acting profile-type standard cylinder with a Ø63mm bore and 265mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X265S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X265S is a discontinued double-acting profile-type cylinder with a 63mm bore and 265mm stroke. Delivering 1559N push at 0.5MPa, its extruded aluminium body is more compact than an ISO 15552 unit of the same bore. AirTAC replaced this EOL unit with the SAU63X265S, a direct retaining the exact 3/8 port, M16x1.5 rod, and SC-series mounts.
Two upgrades exist: the SAU uses modern CMSG/DMSG/EMSG sensors instead of this model's legacy CS1-B/DS1-B switches, and the SAUF variant adds a built-in valve the SU lacked. Note the cushion only decelerates; use a rod lock to hold loads.
| Model | Airtac SU63-100 Standard Cylinder SU63X265S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X265S |
| Bore size | Ø63 mm |
| Stroke | 265 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 SAU63X265S 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 SAU63X265S 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. |
| ×265 | 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 cartons on a packing line using 1559N thrust, with the 265mm stroke clearing side guides.
Acts as a pneumatic stop for inbound pallets, absorbing kinetic energy via its 21mm adjustable cushions.
To replace this SU63X265S, order the SAU63X265S direct, confirming the 3/8 port, M16x1.5 thread, and SC-series mounting. Because it has the -S magnet, you must switch from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. For loads needing mid-stroke holding, add an external rod lock or pilot-operated check valve, as the cushion only decelerates. At 265mm stroke, guide the load to prevent rod bending. If you need less force, a 50mm bore gives 982N push; for more power, an 80mm bore yields 2513N. The SAUF valve-integrated option can simplify cycling.
Replacement checklist
Yes, the SU63X265S is discontinued. The direct replacement is the AirTAC SAU63X265S, which matches the 63mm bore, 265mm stroke, 1559N force, 3/8 port, and SC-series mounting.
It delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and 318kgf max at 1.0MPa. The -S magnet works with legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X265S replacement — usually within 7-8 hours.