This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X280S, 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 SU100X280S 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 SAU100X280S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X280S is a discontinued double-acting profile-type cylinder with a 100 mm bore and 280 mm stroke. Delivering a push force of 3927 N at 0.5 MPa, this extruded aluminum unit is shorter and more compact than an ISO 15552 cylinder of the same size. The direct replacement is the SAU100X280S, matching the bore, stroke, 1/2" port, and SC-series mounting.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors to replace this model's legacy CS1-B/DS1-B switches, and offers a new SAUF built-in-valve variant the SU line lacked. Note that air cushions only decelerate; use an external rod lock for load holding.
| Model | Airtac SU63-100 Standard Cylinder SU100X280S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X280S |
| 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 SAU100X280S 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 SAU100X280S 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.
Provides 3927 N of thrust at 0.5 MPa for actuating heavy-duty stamping and forming dies in metal fabrication lines.
Drives large heavy-duty diverter arms on conveyor systems to route high-volume bulk materials between processing lanes.
To replace the SU100X280S, order the SAU100X280S direct equivalent, verifying the 100 mm bore, 280 mm stroke, 1/2" port, M20x1.5 rod thread, and SC-series mounting. Because this SKU includes the -S magnet, you must migrate from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family. Sizing both ways: a neighbouring 80 mm bore yields 2513 N push at 0.5 MPa, while a 100 mm bore provides 5497 N at 0.7 MPa if you need extra margin. Since the stroke is 280 mm, ensure adequate guidance to prevent rod bending under side loads. The cylinder will not hold a load without live air—add a pilot-operated check valve or rod lock for vertical safety. If valve integration is desired, explore the SAUF variant.
Replacement checklist
Yes, the SU100X280S is discontinued. The direct replacement is the AirTAC SAU100X280S. It matches the 100 mm bore, 280 mm stroke, output force, 1/2" port, and SC-series mounting. You can swap it directly without modifying your machine.
The SAU100X280S provides 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a theoretical max of 801 kgf at 1.0 MPa. Because your old SU100X280S used a -S magnet with legacy CS1-B/DS1-B switches, you must upgrade to the current CMSG/DMSG/EMSG sensor family for the replacement.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X280S replacement — usually within 7-8 hours.