This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X520S, 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 SU80X520S is a double-acting profile-type standard cylinder with a Ø80mm bore and 520mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X520S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X520S is a discontinued double-acting profile-type cylinder featuring an 80mm bore, 520mm stroke, and a 3/8 inch air port. Delivering 2513N push force at 0.5MPa, it is directly replaced by the SAU80X520S. This direct upgrade matches the original bore, stroke, output force, port size, and SC-series mounting, ensuring a seamless retrofit. The extruded aluminum profile body remains more compact than a standard ISO 15552 cylinder of the same bore.
Because this SKU includes the -S magnet, it originally used legacy CS1-B/DS1-B switches; the SAU replacement transitions to current CMSG/DMSG/EMSG sensors. Additionally, the SAU line introduces a SAUF variant with a built-in 4M solenoid valve that the SU series never offered.
| Model | Airtac SU63-100 Standard Cylinder SU80X520S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X520S |
| Bore size | Ø80 mm |
| Stroke | 520 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 SAU80X520S 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 SAU80X520S 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. |
| ×520 | 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.
Handles heavy pallet routing on packaging lines using the 2513N push force, while the 520mm stroke moves loads completely clear of the main conveyor path.
Raises and lowers access gates or material stops. The 128kg vertical lift capacity at 0.5MPa provides reliable gravity-overcoming thrust for standard warehouse logistics.
Ejects formed metal or plastic parts from press beds. The 80mm bore generates enough thrust to dislodge sticky components without requiring a full 100mm body.
To replace the discontinued SU80X520S, order the SAU80X520S direct equivalent, verifying your 80mm bore, 520mm stroke, 3/8 inch port, M20x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). If downsizing is possible, a 63mm bore yields 1559N push at 0.5MPa; if upscaling is needed, a 100mm bore provides 3927N. Because this is a 520mm stroke, use external guides to prevent rod bending and side-load damage. The -S magnet means you must upgrade sensors from the old CS1-B/DS1-B to the modern CMSG/DMSG/EMSG family. Remember that a plain cylinder drifts without live air—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for load holding. For self-switching needs, consider the SAUF valve-integrated option.
Replacement checklist
Yes, the AirTAC SU80X520S is discontinued and end-of-life. The direct replacement is the SAU80X520S. It features the identical 80mm bore, 520mm stroke, 2513N force, 3/8 inch port, and SC-series mounting, so it fits the same application directly.
At 0.5MPa it pushes 2513N and pulls 2268N; at 0.7MPa it pushes 3518N, with a theoretical max of 513kgf at 1.0MPa. Because this is an -S magnet model, the original CS1-B/DS1-B switches are obsolete; 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 SAU80X520S replacement — usually within 7-8 hours.