This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X265, 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 SU100X265 is a double-acting profile-type standard cylinder with a Ø100mm bore and 265mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X265, which matches its bore, stroke, force and mounting.
The AirTAC SU100X265 is a discontinued double-acting profile cylinder, delivering a robust 3927 N push force at 0.5 MPa through its 100 mm bore and 265 mm stroke. AirTAC replaced this end-of-line unit with the SAU100X265. This direct upgrade preserves the exact profile body, 1/2" port, M20x1.5 rod thread, and SC-series mounting dimensions, ensuring a seamless mechanical swap.
Because this specific SKU lacks a magnet (-S), it cannot accept any sensor. Upgrading to the SAU100X265 not only solves obsolescence but unlocks modern CMSG/DMSG/EMSG switch compatibility if you later specify a magnet, plus a new SAUF built-in-valve variant the SU line never offered.
| Model | Airtac SU63-100 Standard Cylinder SU100X265 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X265 |
| Bore size | Ø100 mm |
| Stroke | 265 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 SAU100X265 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 SAU100X265 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. |
| ×265 | 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, using the 3927 N push force at 0.5 MPa to hold components rigidly against cutting forces.
Provides the heavy-duty knockout stroke required to eject dense molded parts, relying on the 29 mm adjustable air cushions to decelerate the 25 mm rod smoothly.
To replace the SU100X265, order the SAU100X265 and verify your 1/2" port, M20x1.5 rod thread, and SC-series mounting hardware (LB/FA/FB/CA/CB) — all remain identical. If your machine needs a smaller footprint, dropping to an 80 mm bore yields 2513 N push at 0.5 MPa; stepping up is impossible as 100 mm is the maximum profile size. Remember that a plain cylinder drifts without live air, so fit an external rod lock or pilot-operated check valve for load holding. At 265 mm stroke, side-load and rod-bending risks are moderate, so guide the load to prevent premature seal wear. If you need integrated controls, explore the SAUF variant featuring a built-in 4M solenoid valve.
Replacement checklist
Yes, the SU100X265 is discontinued. The direct replacement is the AirTAC SAU100X265. It matches the 100 mm bore, 265 mm stroke, 1/2" port, output force, and SC-series mounting accessories perfectly.
It delivers 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. It cannot hold a load without live air; the cushions only decelerate. Use an external rod lock for holding. Note this no-magnet SKU cannot accept sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X265 replacement — usually within 7-8 hours.