This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X800S, 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 SU63X800S is a double-acting profile-type standard cylinder with a Ø63mm bore and 800mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X800S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X800S is a discontinued double-acting profile-type cylinder with an 800 mm stroke and 63 mm bore, delivering 1559 N push and 1402 N pull at 0.5 MPa. Its extruded aluminium barrel is shorter than an ISO 15552 cylinder of the same bore, and it features a 3/8" port with M16x1.5 rod threading. AirTAC replaced this end-of-life unit with the SAU63X800S, a direct replacement retaining the exact bore, stroke, force, port size, and SC-series mounting compatibility.
The factory-installed -S magnet on this legacy model worked with CS1-B/DS1-B switches, whereas the SAU successor uses 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 lacked.
| Model | Airtac SU63-100 Standard Cylinder SU63X800S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X800S |
| Bore size | Ø63 mm |
| Stroke | 800 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 SAU63X800S 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 SAU63X800S 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. |
| ×800 | 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 laterally across transfer lines using the full 800 mm travel, relying on the 1559 N push force at 0.5 MPa to overcome sliding friction.
Ejects completed assemblies from machinery beds, using adjustable end cushions to decelerate the payload smoothly at the end of the 800 mm stroke.
To replace the discontinued SU63X800S, order the SAU63X800S, confirming the 63 mm bore, 800 mm stroke, 3/8" port, M16x1.5 rod 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 CMSG/DMSG/EMSG sensors. If your machine needs self-switching logic, the SAUF variant integrates a 4M solenoid valve directly on the body. For sizing alternatives, a 50 mm bore provides 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so fit an external rod lock or pilot-operated check valve for held loads. Finally, at 800 mm, the 20 mm rod is vulnerable to bending; use external guides to prevent side-load damage.
Replacement checklist
Yes, the SU63X800S is discontinued. The direct replacement is the AirTAC SAU63X800S. It matches the 63 mm bore, 800 mm stroke, 3/8" port, output force, and SC-series mounting. The body dimensions are identical, but the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 63 mm bore has a 3/8" port and a 20 mm rod. It delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N push at 0.9 MPa, and a theoretical maximum of 318 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with adjustable air cushions at both ends.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X800S replacement — usually within 7-8 hours.