This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X240S, 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 SU63X240S is a double-acting profile-type standard cylinder with a Ø63mm bore and 240mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X240S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X240S is a discontinued double-acting profile-type cylinder with a 63 mm bore, 240 mm stroke, and a 3/8" port. Delivering 1559 N push force at 0.5 MPa, it uses an extruded aluminum barrel that is shorter and more compact than an ISO 15552 cylinder of the same bore. AirTAC replaced this end-of-life unit with the SAU63X240S, a direct replacement retaining the exact same body dimensions, output force, port size, and SC-series mounting.
Because this SKU includes the -S magnet, it originally paired with legacy CS1-B/DS1-B switches; upgrading to the SAU requires switching to the current CMSG/DMSG/EMSG sensor family. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series never offered.
| Model | Airtac SU63-100 Standard Cylinder SU63X240S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X240S |
| Bore size | Ø63 mm |
| Stroke | 240 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 SAU63X240S 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 SAU63X240S 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. |
| ×240 | 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.
Ideal for securing heavier workpieces during machining, utilizing the 1559 N push force at 0.5 MPa to hold components firmly against a fixture.
Provides robust actuation for diverting larger cartons or totes on a 240 mm stroke, easily handling the lateral forces of mid-weight logistics sorting.
Capable of lifting access panels or small pneumatic gates up to 79 kg safely, offering reliable vertical movement when paired with proper guiding.
To replace this SU63X240S, order the SAU63X240S and verify your 3/8" port, M16x1.5 rod thread, and SC-series mounting hardware. If your machine relied on the -S magnet for positioning, note that the legacy CS1-B/DS1-B switches are obsolete; you must migrate to CMSG/DMSG/EMSG sensors on the SAU. If you need integrated flow control, explore the SAUF valve-cylinder variant. For sizing alternatives, dropping to a 50 mm bore yields 982 N push at 0.5 MPa, while increasing to an 80 mm bore provides 2513 N. Remember that a standard cylinder drifts without live air—the cushions only decelerate at the ends—so add an external rod lock or pilot-operated check valve for load holding. At 240 mm stroke, side-load and rod-bending forces are minimal, but ensure proper guide alignment to prevent premature seal wear.
Replacement checklist
Yes, the SU63X240S is discontinued. The direct replacement is the AirTAC SAU63X240S. It shares the identical 63 mm bore, 240 mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application without mechanical modifications.
At 0.5 MPa, it provides 1559 N push and 1402 N pull force. At 0.7 MPa it pushes 2182 N, and reaches a theoretical maximum of 318 kgf at 1.0 MPa. Because this is the -S magnet version, it originally used CS1-B/DS1-B switches; the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X240S replacement — usually within 7-8 hours.