This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X80STC, 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 SU100X80STC is a double-acting profile-type standard cylinder with a Ø100mm bore and 80mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X80STC, which matches its bore, stroke, force and mounting.
The AirTAC SU100X80STC is a discontinued double-acting profile-type cylinder with an 80 mm stroke and 100 mm bore. It delivers 3927 N push and 3681 N pull at 0.5 MPa, using a 25 mm rod and 1/2" port. AirTAC replaced this legacy unit with the SAU100X80STC, a direct replacement retaining the exact bore, stroke, output force, port size and SC-series TC mounting interface.
When upgrading, note the SAU100X80STC uses current CMSG/DMSG/EMSG sensors instead of the SU's legacy CS1-B/DS1-B switches, and the SAUF variant offers a built-in valve the SU lacked.
| Model | Airtac SU63-100 Standard Cylinder SU100X80STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X80STC |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAU100X80STC 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 SAU100X80STC 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. |
| ×80 | 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 a machining fixture, utilising the 3927 N push force at 0.5 MPa to hold components rigidly against cutting loads.
Pushes completed goods off a roller conveyor using the TC mount trunnion to pivot slightly and accommodate the 80 mm ejection stroke.
Advances heavy gauge material strips into a press, where the 25 mm rod and compact profile body resist deflection during high-force indexing.
To replace this discontinued SU100X80STC, order the SAU100X80STC ensuring your 1/2" port, M20x1.5 rod thread and TC mounting match. Because this SKU includes the -S magnet, you must switch your legacy CS1-B/DS1-B switches to the SAU-compatible CMSG/DMSG/EMSG family. If your application needs true load holding on air loss, note the cushion only decelerates; add an external rod lock or pilot-operated check valve. Neighbouring 80 mm bore gives 2513 N push at 0.5 MPa if you can downsize, while the 100 mm bore hits 5497 N at 0.7 MPa for higher demand. The SAUF built-in-valve option simplifies actuation if you lack a separate solenoid.
Replacement checklist
Yes, the SU100X80STC is discontinued. The direct replacement is the AirTAC SAU100X80STC. It matches the 100 mm bore, 80 mm stroke, 1/2" port, output force and TC mounting, but the -S magnet requires upgrading from legacy CS1-B/DS1-B sensors to the current CMSG/DMSG/EMSG switches.
This double-acting cylinder has a 100 mm bore, 25 mm rod, 1/2" port, M20x1.5 thread and 29 mm cushions. It outputs 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. Operating speed is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X80STC replacement — usually within 7-8 hours.