This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X270S, 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 SU100X270S is a double-acting profile-type standard cylinder with a Ø100mm bore and 270mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X270S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X270S is a discontinued double-acting profile-type cylinder with a 100 mm bore and 270 mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 cylinder of the same size while sharing AirTAC SC-series mounting accessories.
AirTAC replaced this end-of-life unit with the SAU100X270S, a direct replacement retaining the exact body profile, 1/2" port, M20x1.5 rod thread, and 29 mm adjustable cushions. The SAU upgrade introduces current CMSG/DMSG/EMSG sensors to replace the legacy CS1-B/DS1-B switches used on this -S SKU, and adds a new SAUF built-in 4M solenoid valve option the SU line never had.
| Model | Airtac SU63-100 Standard Cylinder SU100X270S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X270S |
| Bore size | Ø100 mm |
| Stroke | 270 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 SAU100X270S 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 SAU100X270S 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. |
| ×270 | 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.
Secures large metal castings in machining fixtures, utilizing the 3927 N push force at 0.5 MPa to hold components rigidly against cutting forces.
Pushes overweight or misaligned pallets off a high-speed conveyor line, moving loads safely within the 2356 N working load limit.
Ejects heavy stamped parts from a die bed, using the 270 mm stroke to clear the press bed before the next material feeds in.
To replace this discontinued SU100X270S, order the SAU100X270S direct equivalent, verifying your 1/2" port, M20x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). Because this SKU includes a magnet (-S), note that your legacy CS1-B/DS1-B switches must change to the SAU's CMSG/DMSG/EMSG sensor family. For sizing both ways: dropping to an 80 mm bore reduces push force to 2513 N at 0.5 MPa, while increasing pressure to 0.7 MPa on this 100 mm bore yields 5497 N. Remember that a plain cylinder drifts on air loss—the cushions only decelerate near stroke end, so specify an external rod lock or pilot-operated check valve for held loads. At 270 mm stroke, rod bending is low, but always guide the load to prevent side-load wear.
Replacement checklist
Yes, the SU100X270S is discontinued. The direct replacement is the SAU100X270S. It matches the 100 mm bore, 270 mm stroke, 1/2" port, output force, and SC-series mounting, but requires upgrading your -S sensors from the old CS1-B/DS1-B to the current CMSG/DMSG/EMSG family.
The 100 mm bore features a 1/2" air port and a 25 mm piston rod. It outputs 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a theoretical maximum of 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X270S replacement — usually within 7-8 hours.