This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X630, 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 SU80X630 is a double-acting profile-type standard cylinder with a Ø80mm bore and 630mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X630, which matches its bore, stroke, force and mounting.
The AirTAC SU80X630 is a discontinued double-acting profile-type cylinder featuring an extruded aluminum barrel and adjustable air cushions at both ends. It delivers a thrust of 2513 N at 0.5 MPa, utilizing a 3/8" port and a 25 mm piston rod. Because this SU model lacks a -S magnet, it cannot accept any magnetic position switches.
AirTAC replaced the SU series with the SAU80X630, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting. The SAU upgrade introduces current CMSG/DMSG/EMSG sensors and a new SAUF built-in-valve option the SU line never had.
| Model | Airtac SU63-100 Standard Cylinder SU80X630 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X630 |
| Bore size | Ø80 mm |
| Stroke | 630 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU80X630 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAU80X630 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). |
|---|---|
| 80 | Bore size in mm. |
| ×630 | 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 a transfer line using the 2513 N thrust at 0.5 MPa, while external guides absorb the carton side-load over the 630 mm extension.
Raises a 128 kg material gate vertically, requiring a pilot-operated check valve to prevent drifting since the cylinder cannot hold the load unaided.
Ejects molded components from a press bed, relying on the 28 mm adjustable air cushions to decelerate the 25 mm rod smoothly at stroke end.
To replace the discontinued SU80X630, order the SAU80X630 direct equivalent, verifying your 3/8" port, M20x1.5 rod thread, and SC-series mounting hardware. Since this SKU has no magnet, it cannot support sensing; if you need position detection on the SAU, specify the -S option and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. When sizing, note the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore offers 3927 N. A plain cylinder does not hold load without live air—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for vertical holding. Finally, the 630 mm stroke demands external guide rails to prevent rod bending and side-load wear.
Replacement checklist
Yes, the AirTAC SU80X630 is discontinued. The direct replacement is the SAU80X630, which shares the identical 80 mm bore, 630 mm stroke, 3/8" port, output force, and SC-series mounting.
It delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa. Because this specific SKU lacks a -S magnet, it cannot accept magnetic switches like the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X630 replacement — usually within 7-8 hours.