This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X350STC, 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 SU80X350STC is a double-acting profile-type standard cylinder with a Ø80mm bore and 350mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X350STC, which matches its bore, stroke, force and mounting.
The AirTAC SU80X350STC is a discontinued double-acting profile cylinder with an 80mm bore and 350mm stroke, delivering 2513N push and 2268N pull at 0.5MPa. Its extruded aluminum barrel and 3/8" port make it shorter than an ISO 15552 unit of the same size. The direct replacement is the SAU80X350STC, matching the bore, stroke, force, port, and SC-series TC mounting.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors to replace this unit's legacy CS1-B/DS1-B switches, and offers a SAUF valve-integrated option. Note that the 350mm stroke requires an external guide to prevent rod bending.
| Model | Airtac SU63-100 Standard Cylinder SU80X350STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X350STC |
| Bore size | Ø80 mm |
| Stroke | 350 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 SAU80X350STC 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 SAU80X350STC 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. |
| ×350 | 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 sideways off a main conveyor line using 2513N of thrust at 0.5MPa, with the 350mm stroke clearing adjacent lane traffic.
Holds composite sheets in a molding fixture, taking advantage of the 513kgf maximum theoretical force at 1.0MPa while reusing the TC mount bracket.
To replace this discontinued SU80X350STC, order the SAU80X350STC. Confirm the 80mm bore, 350mm stroke, 3/8" port, M20x1.5 rod thread, and TC mounting. Because this SKU includes a magnet (-S), you must switch from the old CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG family. If you need higher force, the 100mm bore yields 3927N push at 0.5MPa; if lower force is acceptable, the 63mm bore provides 1559N. At 350mm stroke, add an external guide to prevent rod bending. For load holding on air loss, add an external rod lock or pilot-operated check valve, as the cushion only decelerates. The SAUF variant adds a built-in 4M valve if self-switching is needed.
Replacement checklist
Yes, the AirTAC SU80X350STC is discontinued. The direct replacement is the SAU80X350STC. It provides the same 80mm bore, 350mm stroke, 3/8" port, output force, and SC-series TC mounting compatibility. You can swap it directly without changing your mechanical setup.
At 0.5MPa it pushes 2513N and pulls 2268N; at 0.7MPa it pushes 3518N; at 0.9MPa it pushes 4523N; with a theoretical max of 513kgf at 1.0MPa. Because this model has a magnet (-S), it used legacy CS1-B/DS1-B switches. The SAU80X350STC replacement requires upgrading to current CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X350STC replacement — usually within 7-8 hours.