This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X750, 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 SU80X750 is a double-acting profile-type standard cylinder with a Ø80mm bore and 750mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X750, which matches its bore, stroke, force and mounting.
The AirTAC SU80X750 is a discontinued double-acting profile-type cylinder with an 80mm bore and 750mm stroke. AirTAC replaced this end-of-life unit with the SAU80X750, a direct alternative retaining the exact 3/8" port, M20x1.5 rod thread, 513kgf maximum force, and SC-series mounting footprint.
Because this specific SKU lacks a magnet, it cannot accept any magnetic position switch. Furthermore, the SAU upgrade transitions to current CMSG/DMSG/EMSG sensors (the legacy SU used CS1-B/DS1-B) and introduces the SAUF variant with a built-in 4M solenoid valve that the original SU line never offered. The extruded aluminum profile remains shorter and more compact than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU80X750 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X750 |
| Bore size | Ø80 mm |
| Stroke | 750 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 SAU80X750 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 SAU80X750 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. |
| ×750 | 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 or workpieces across a 750mm gap with 2513N push force at 0.5MPa, requiring external guides to prevent rod bending over the long travel distance.
Actuates large tooling or clamps over a 750mm stroke, delivering a theoretical maximum output of 513kgf at 1.0MPa while reusing existing SC-series mounting hardware.
To replace the discontinued SU80X750, order the SAU80X750 direct equivalent, verifying your 3/8" port, M20x1.5 rod thread, and SC-series mounting accessories. Since this SKU has no magnet, it cannot support sensing; if you require position detection, upgrade to an SAU80X750-S and adopt the current CMSG/DMSG/EMSG sensor family instead of the legacy CS1-B/DS1-B switches. If you need integrated air flow control, the SAUF80X750 variant includes a built-in 4M solenoid valve. For sizing, the 80mm bore yields 2513N push at 0.5MPa; if you need less force, step down to a 63mm bore (1559N), or step up to 100mm (3927N) for heavier loads. Note that a plain cylinder drifts on air loss—the cushions only decelerate near stroke end—so use an external rod lock or pilot-operated check valve for load holding. Finally, at 750mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
Yes, the AirTAC SU80X750 is discontinued. The direct replacement is the SAU80X750, which matches the 80mm bore, 750mm stroke, 3/8" port, 513kgf max force, and SC-series mounting. You can install it directly into your existing application.
It provides 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a 513kgf maximum at 1.0MPa. Because this specific SKU lacks a magnet, it cannot accept magnetic switches; the SAU-S variant uses CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X750 replacement — usually within 7-8 hours.