This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X525S, 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 SU100X525S is a double-acting profile-type standard cylinder with a Ø100mm bore and 525mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X525S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X525S is a discontinued double-acting profile-type cylinder with a 100mm bore and 525mm stroke. Delivering 3927 N push force at 0.5 MPa, it features an extruded aluminum barrel and adjustable cushions. AirTAC replaced this EOL unit with the SAU100X525S, a direct replacement retaining the exact bore, stroke, 1/2" port, and SC-series mounting.
This -S SKU includes a piston magnet for legacy CS1-B/DS1-B switches; upgrading to the SAU requires switching to current CMSG/DMSG/EMSG sensors. The SAU line also introduces the SAUF built-in 4M solenoid valve variant.
| Model | Airtac SU63-100 Standard Cylinder SU100X525S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X525S |
| Bore size | Ø100 mm |
| Stroke | 525 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 SAU100X525S 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 SAU100X525S 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. |
| ×525 | 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 the high 3927 N push force needed to eject dense stamped parts from a press bed over a 525mm reach.
Shifts heavy loaded pallets laterally on a conveyor line, utilizing the 100mm bore's robust thrust and long stroke.
Actuates large industrial material handling gates where a 525mm travel and 200 kg vertical lift capacity are required.
To replace this cylinder, order the SAU100X525S. Verify your 1/2" port threads (PT, G, or NPT) and SC-series mounting hardware, which carry over directly. Because this is a -S model, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. At 525mm, this long stroke demands external guides to prevent rod bending under side loads. Downsize to an 80mm bore (2513 N push) for lighter loads, or keep this 100mm size for up to 801 kgf at 1.0 MPa. The air cushion only decelerates; use an external rod lock or pilot-operated check valve to hold loads safely.
Replacement checklist
Yes, the SU100X525S is discontinued. The direct replacement is the AirTAC SAU100X525S. It matches the 100mm bore, 525mm 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. The -S suffix denotes a magnet for legacy CS1-B/DS1-B switches; the SAU replacement upgrades these to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X525S replacement — usually within 7-8 hours.