This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X305, 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 SU80X305 is a double-acting profile-type standard cylinder with a Ø80mm bore and 305mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X305, which matches its bore, stroke, force and mounting.
The AirTAC SU80X305 is a discontinued double-acting profile-type cylinder with an 80mm bore and 305mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa, making it a robust choice for heavy actuation. AirTAC replaced this end-of-life unit with the SAU80X305, a direct alternative retaining the exact body, force, 3/8" port, and SC-series mounting.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade accommodates current CMSG/DMSG/EMSG switches, and introduces the SAUF built-in-valve variant the SU line never had.
| Model | Airtac SU63-100 Standard Cylinder SU80X305 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X305 |
| Bore size | Ø80 mm |
| Stroke | 305 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 SAU80X305 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 SAU80X305 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. |
| ×305 | 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.
Secures large metal castings during machining operations, utilizing the 2513N push force at 0.5MPa to maintain rigid fixturing under vibration.
Actuates heavy-duty routing gates on high-throughput packaging lines, where the 3/8" port ensures rapid cycling across the 305mm travel.
Raises loaded trays using a safe vertical lift capacity of approximately 128kg, requiring external guides to manage the 305mm stroke side-load.
To replace this SU80X305, order the SAU80X305 direct equivalent, verifying the 3/8" port, M20x1.5 rod thread, and SC-series mounting hardware. Since this specific SKU has no magnet (-S), it cannot support sensing; if detection is needed on the new unit, specify the SAU80X305-S and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. When sizing, a neighboring 63mm bore yields 1559N push at 0.5MPa, while a 100mm bore provides 3927N. For the 305mm stroke, use external guides to prevent rod bending and side-load wear. Note that a standard cylinder drifts on air loss; the cushions only decelerate the piston. For load holding, install an external rod lock or pilot-operated check valve. The SAUF valve-integrated option can also simplify actuation circuits.
Replacement checklist
Yes, the SU80X305 is discontinued. The direct replacement is the AirTAC SAU80X305. It matches the 80mm bore, 305mm stroke, 2513N output force, 3/8" port, and SC-series mounting accessories, fitting the same application space directly.
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 accept a sensor; the SAU replacement requires CMSG/DMSG/EMSG switches if sensing is added.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X305 replacement — usually within 7-8 hours.