This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X280, 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 SU80X280 is a double-acting profile-type standard cylinder with a Ø80mm bore and 280mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X280, which matches its bore, stroke, force and mounting.
The AirTAC SU80X280 is a discontinued double-acting profile-type cylinder with an 80mm bore and 280mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa, operating at 30-800mm/s with a 3/8" port and M20x1.5 rod thread. The direct replacement is the SAU80X280, matching the bore, stroke, 28mm cushions, force, and SC-series mounting. The extruded aluminium profile is more compact than an ISO 15552 cylinder of the same bore.
This non-magnetic SKU cannot take a sensor; the SAU upgrade uses CMSG/DMSG/EMSG switches for its -S variants, and adds a SAUF built-in-valve option the SU lacked. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock for held loads.
| Model | Airtac SU63-100 Standard Cylinder SU80X280 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X280 |
| Bore size | Ø80 mm |
| Stroke | 280 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 SAU80X280 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 SAU80X280 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. |
| ×280 | 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 off a main conveyor line using 2513N thrust at 0.5MPa, with the 280mm stroke clearing guide rails.
Ejects stacked tote bins from a storage rack, relying on the compact profile body to fit within tight vertical shelving clearances.
Kicks stamped metal parts out of a press bed, where the 28mm adjustable cushions absorb kinetic energy at stroke end to prevent impact damage.
To replace this SU80X280, order the SAU80X280 direct equivalent, verifying the 80mm bore, 280mm stroke, 3/8" port, M20x1.5 thread, and SC-series mounting (LB/FA/FB/CA/CB). This non-magnetic SKU cannot accept a sensor; if sensing is needed, specify an SAU80X280S and migrate to CMSG/DMSG/EMSG switches, as the SU used legacy CS1-B/DS1-B. For sizing both ways, the neighbouring 63mm bore gives 1559N push at 0.5MPa, while the 100mm bore gives 3927N. At 280mm stroke, guide the load to prevent rod bending and side-load wear. The air cushion only decelerates; it does not hold—add a pilot-operated check valve for load holding. The SAUF variant integrates a 4M valve if space is tight.
Replacement checklist
Yes, the AirTAC SU80X280 is discontinued and end-of-life. The direct replacement is the SAU80X280. It provides identical bore, stroke, output force, 3/8" port, and SC-series mounting compatibility. You can swap it directly without modifying your machine.
It delivers 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N at 0.9MPa, and a theoretical max of 513kgf at 1.0MPa. This specific SKU lacks a magnet, so it cannot accept a magnetic switch. The SAU replacement uses CMSG/DMSG/EMSG sensors on its -S variants.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X280 replacement — usually within 7-8 hours.