This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X315, 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 SU80X315 is a double-acting profile-type standard cylinder with a Ø80mm bore and 315mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X315, which matches its bore, stroke, force and mounting.
The AirTAC SU80X315 is a discontinued double-acting profile-type cylinder with an 80mm bore and 315mm stroke. It delivers 2513N push force at 0.5MPa and uses a 3/8" port. AirTAC replaced this EOL unit with the SAU80X315, a direct alternative retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade introduces CMSG/DMSG/EMSG switch compatibility for its -S variants, plus a new SAUF built-in valve option the SU line never had. Mechanically, the extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU80X315 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X315 |
| Bore size | Ø80 mm |
| Stroke | 315 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 SAU80X315 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 SAU80X315 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. |
| ×315 | 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 2513N push force at 0.5MPa, with the 315mm stroke clearing wide conveyor frames.
Ejects completed goods from vertical storage racks, taking advantage of the 128kg safe vertical lift capacity to lower products gently.
Kicks formed metal or plastic parts out of a press bed, relying on the compact profile body to fit tight machine cells.
To replace this discontinued SU80X315, order the SAU80X315 direct equivalent, confirming the 80mm bore, 315mm stroke, 3/8" port, and M20x1.5 rod thread. Since this specific SKU has no magnet (-S), it cannot support sensing; if you need position detection on the new SAU, specify the -S option and migrate to CMSG/DMSG/EMSG switches. If you need higher force, the 100mm bore offers 3927N push at 0.5MPa; for less force, the 63mm bore provides 1559N. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot-operated check valve for held loads. Finally, at 315mm stroke, prevent rod bending by guiding the load externally to avoid side-loading.
Replacement checklist
Yes, the SU80X315 is discontinued. The direct replacement is the SAU80X315. It shares the identical 80mm bore, 315mm stroke, 2513N force, 3/8" port, and SC-series mounting, so it bolts right in. The SAU also adds a SAUF built-in valve option the SU lacked.
It delivers 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a theoretical max of 513kgf at 1.0MPa. Because this specific SKU lacks a magnet, it cannot take a sensor; the SAU -S variant uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X315 replacement — usually within 7-8 hours.