This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X450, 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 SU80X450 is a double-acting profile-type standard cylinder with a Ø80mm bore and 450mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X450, which matches its bore, stroke, force and mounting.
The AirTAC SU80X450 is a discontinued double-acting profile-type cylinder featuring an extruded aluminum barrel and adjustable air cushions at both ends. Delivering a push force of 2513 N at 0.5 MPa, it is shorter and more compact than an ISO 15552 cylinder of the same bore while sharing AirTAC SC-series mounting accessories. AirTAC replaced this end-of-life unit with the SAU80X450, a direct replacement retaining the exact 80mm bore, 450mm stroke, output force, 3/8" port, and M20x1.5 rod thread.
Because this specific SKU lacks a magnet, it cannot accept a magnetic switch. Upgrading to the SAU80X450 gives you the same compact profile and 513 kgf maximum force, but if you need position sensing you must order the SAU with an -S suffix and use the current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B sensors. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve, an option the original SU line never offered.
| Model | Airtac SU63-100 Standard Cylinder SU80X450 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X450 |
| Bore size | Ø80 mm |
| Stroke | 450 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 SAU80X450 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 SAU80X450 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. |
| ×450 | 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 sideways on a packaging line using a 450mm stroke, relying on the 2513 N push force at 0.5 MPa to overcome sliding friction.
Ejects formed metal components from a press bed, utilizing the adjustable 28mm air cushions to decelerate the 25mm rod smoothly at stroke end.
To replace the discontinued SU80X450, order the SAU80X450. Verify your 3/8" port thread (PT, G, or NPT) and SC-series mounting (LB, FA, FB, CA, CB, or TC) to ensure a seamless direct fit. When sizing, note the neighboring 63mm bore offers 1559 N push at 0.5 MPa, while the 100mm bore provides 3927 N, allowing you to scale force if needed. Since this 450mm stroke exceeds 300mm, you must use an external guide to prevent rod bending and side-load damage. A plain cylinder does not hold a load on air loss—the cushion only decelerates near the stroke end—so install an external rod lock or pilot-operated check valve for suspended loads. If you require self-switching, consider the SAUF80X450 valve-integrated option.
Replacement checklist
Yes, the SU80X450 is discontinued. The direct replacement is the AirTAC SAU80X450. It features the same 80mm bore, 450mm stroke, 2513 N push force at 0.5 MPa, 3/8" port, and SC-series mounting compatibility, so it fits the same application directly.
The SU80X450 delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa. This specific SKU has no magnet and cannot take a sensor; if you need sensing on the SAU replacement, order the -S version which uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X450 replacement — usually within 7-8 hours.