This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X140STC, 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 SU80X140STC is a double-acting profile-type standard cylinder with a Ø80mm bore and 140mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X140STC, which matches its bore, stroke, force and mounting.
The AirTAC SU80X140STC is a discontinued double-acting profile cylinder with an 80mm bore and 140mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa, using a 3/8" port and M20x1.5 rod thread. AirTAC replaced this EOL unit with the SAU80X140STC, a direct upgrade retaining the exact bore, stroke, output force, port size, and SC-series TC mounting interface.
Because the SU80X140STC includes a magnet (-S), it originally worked with legacy CS1-B/DS1-B switches; upgrading to the SAU means transitioning to current CMSG/DMSG/EMSG sensors. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU line lacked.
| Model | Airtac SU63-100 Standard Cylinder SU80X140STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X140STC |
| Bore size | Ø80 mm |
| Stroke | 140 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 SAU80X140STC 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 SAU80X140STC 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. |
| ×140 | 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 onto auxiliary transfer lines using 2513N of thrust at 0.5MPa, with TC mounting ensuring rigid lateral stability during the 140mm stroke.
Secures heavy steel workpieces in a machining fixture, utilizing the 80mm bore profile body to withstand 4523N of dynamic force at 0.9MPa operating pressure.
To replace the SU80X140STC, order the SAU80X140STC, confirming the 80mm bore, 140mm stroke, 3/8" port, and TC mounting accessory are retained for a seamless physical swap. Because this SKU includes a magnet, you must account for the sensor family change: the old CS1-B/DS1-B switches are retired, so plan to install CMSG/DMSG/EMSG sensors in the SAU extrusion groove. If your machine needs integrated flow control, explore the SAUF built-in-valve variant. For sizing alternatives, dropping to a 63mm bore reduces push force to 1559N at 0.5MPa, while increasing supply to 0.7MPa on this 80mm bore yields 3518N. Remember that a standard cylinder drifts on air loss; the 28mm adjustable cushions only decelerate the piston near stroke end. For suspended loads, add an external rod lock or pilot-operated check valve.
Replacement checklist
Yes, the SU80X140STC is discontinued. The direct replacement is the AirTAC SAU80X140STC. It shares the identical 80mm bore, 140mm stroke, 3/8" port, 513kgf maximum force, and SC-series TC mounting, so it fits the same application without mechanical modifications.
At 0.5MPa it provides 2513N push and 2268N pull; at 0.7MPa push is 3518N, and the theoretical maximum is 513kgf at 1.0MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are retired; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X140STC replacement — usually within 7-8 hours.