This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X280, 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 SU100X280 is a double-acting profile-type standard cylinder with a Ø100mm bore and 280mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X280, which matches its bore, stroke, force and mounting.
The AirTAC SU100X280 is a discontinued double-acting profile-type cylinder with a 100mm bore and 280mm stroke. It delivers a push force of 3927 N at 0.5 MPa and features a 1/2 inch port with a 25mm piston rod. AirTAC replaced this legacy unit with the SAU100X280, a direct replacement sharing the exact same bore, stroke, output force, port size and SC-series mounting accessories.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade introduces current CMSG/DMSG/EMSG switches for magnetized versions, plus a SAUF built-in valve option the SU line never had. Note that a plain cylinder drifts without live air; use an external rod lock for held loads.
| Model | Airtac SU63-100 Standard Cylinder SU100X280 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X280 |
| Bore size | Ø100 mm |
| Stroke | 280 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU100X280 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAU100X280 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). |
|---|---|
| 100 | 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.
Ideal for securing heavy steel plates during machining, utilizing the 3927 N push force at 0.5 MPa to hold components rigidly in place.
Provides the robust 280mm stroke and high thrust needed to push finished goods or heavy pallets off a conveyor line smoothly.
Drives large automated safety doors or heavy gates, taking advantage of the 100mm bore power and adjustable 29mm end cushions.
To replace the SU100X280, order the SAU100X280. Confirm the 1/2 inch port (default PT thread), M20x1.5 rod thread, and your SC-series mounting (LB/FA/FB/CA/CB). This non-magnetized SKU cannot take a sensor; if you need position detection, specify an SAU100X280-S and migrate to CMSG/DMSG/EMSG switches (the SU used legacy CS1-B/DS1-B). For higher force needs, step up pressure to 0.7 MPa for 5497 N push; for lower loads, consider an 80mm bore. The 280mm stroke is under the 1500mm standard limit, but always guide the rod to prevent side-load bending. The cylinder will not hold a load without air; add a pilot-operated check valve for static holding. The SAUF variant offers a built-in 4M solenoid valve if you need self-switching.
Replacement checklist
Yes, the SU100X280 is discontinued. The direct replacement is the AirTAC SAU100X280. It matches the 100mm bore, 280mm stroke, 3927 N force, 1/2 inch port, and SC-series mounting, so it fits the same application without modification.
At 0.5 MPa it pushes 3927 N and pulls 3681 N. At 0.7 MPa push is 5497 N, and the theoretical max is 801 kgf at 1.0 MPa. This specific SKU has no magnet and cannot take a sensor. If sensing is required, order the SAU100X280-S and use CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X280 replacement — usually within 7-8 hours.