This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X50S, 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 SU80X50S is a double-acting profile-type standard cylinder with a Ø80mm bore and 50mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X50S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X50S is a discontinued double-acting profile-type cylinder with an 80mm bore and 50mm stroke. Delivering 2513N push force at 0.5MPa via a 3/8" port, its extruded aluminum body is more compact than an ISO 15552 unit of the same bore. AirTAC replaced this EOL unit with the SAU80X50S, a direct matching the exact bore, stroke, force, port, and SC-series mounting.
The SAU upgrade retains the 25mm rod and M20x1.5 thread but moves to current CMSG/DMSG/EMSG sensors, whereas this legacy -S SKU used CS1-B/DS1-B switches. The new SAUF variant also adds a built-in valve the SU lacked.
| Model | Airtac SU63-100 Standard Cylinder SU80X50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X50S |
| Bore size | Ø80 mm |
| Stroke | 50 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 SAU80X50S 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 SAU80X50S 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. |
| ×50 | 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.
Provides the 2513N push at 0.5MPa needed to actuate heavy stamping clamps and feed mechanisms in metal forming lines.
Drives heavy-duty diverter arms on high-throughput conveyors, using the compact 50mm stroke to rapidly redirect goods.
To replace this SU80X50S, order the SAU80X50S direct equivalent, verifying your 3/8" port, M20x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). Because this SKU has a magnet, note the sensor family changes from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG. If your application needs integrated control, explore the SAUF variant with its built-in 4M solenoid valve. When sizing either way, a 63mm bore gives 1559N push at 0.5MPa, while a 100mm bore yields 3927N. For load holding on air loss, add an external rod lock or pilot-operated check valve, as the adjustable cushions only decelerate. With a 50mm stroke, side-load bending is minimal, but always guide the load.
Replacement checklist
Yes, the SU80X50S is discontinued and end-of-life. The direct replacement is the AirTAC SAU80X50S. It shares the identical 80mm bore, 50mm stroke, 2513N output force, 3/8" port, and SC-series mounting, so it fits the same application directly.
The SAU80X50S provides 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a 513kgf maximum at 1.0MPa. Because your SU model has a magnet (-S), the legacy CS1-B/DS1-B switches are replaced by current CMSG/DMSG/EMSG sensors on the SAU.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X50S replacement — usually within 7-8 hours.