This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X445S, 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 SU80X445S is a double-acting profile-type standard cylinder with a Ø80mm bore and 445mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X445S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X445S is a discontinued double-acting profile cylinder with an 80mm bore and 445mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa via a 3/8" port. AirTAC replaced this unit with the SAU80X445S, a direct upgrade retaining the exact bore, stroke, force, port and SC-series mounting.
The SAU upgrade switches the -S magnet to current CMSG/DMSG/EMSG sensors (this legacy SU used CS1-B/DS1-B) and adds a SAUF valve-integrated option. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU80X445S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X445S |
| Bore size | Ø80 mm |
| Stroke | 445 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 SAU80X445S 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 SAU80X445S 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. |
| ×445 | 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 off a main conveyor line using a 445mm stroke, relying on the 2513N push force at 0.5MPa to overcome sliding friction.
Ejects formed metal parts from a press bed, using the 28mm adjustable air cushions to decelerate the 25mm rod smoothly at high speeds.
To replace this SU80X445S, order the SAU80X445S direct equivalent, verifying your 3/8" port, M20x1.5 rod thread and SC-series mount. Because this is an -S SKU, you must upgrade your legacy CS1-B/DS1-B switches to the CMSG/DMSG/EMSG family. If you need integrated air control, the SAU line offers the SAUF built-in 4M solenoid valve variant. For loads needing 4523N at 0.9MPa, this 80mm bore fits, but if you only need 1767N, step down to a 50mm bore. At 445mm, the extended stroke demands external guides to prevent rod bending under side loads. A plain cylinder drifts without live air; for load holding, install an external rod lock or pilot-operated check valve, as the 28mm cushions only decelerate.
Replacement checklist
Yes, the AirTAC SU80X445S is discontinued. The direct replacement is the SAU80X445S. It shares the same 80mm bore, 445mm stroke, 3/8" port, output force and SC-series mounting, so it fits the same application directly.
The SAU80X445S provides 2513N push and 2268N pull at 0.5MPa, 3518N at 0.7MPa, and a maximum theoretical force of 513kgf at 1.0MPa. If your original SU had the -S magnet for CS1-B/DS1-B switches, you must upgrade to the current CMSG/DMSG/EMSG sensor family on the SAU replacement.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X445S replacement — usually within 7-8 hours.