This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X90STC, 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 SU32~50 Standard Cylinder SU32X90STC is a double-acting profile-type standard cylinder with a Ø32mm bore and 90mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X90STC, which matches its bore, stroke, force and mounting.
The AirTAC SU32X90STC is a discontinued double-acting profile-type cylinder with a 32mm bore, 90mm stroke, and a 1/8" port. Delivering 402 N of push force at 0.5 MPa, its extruded aluminum body is more compact than a standard ISO 15552 unit of the same bore. AirTAC replaced this EOL unit with the SAU32X90STC, a direct replacement retaining the exact stroke, force, port size, and SC-series TC 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 family also introduces the SAUF variant with a built-in 4M solenoid valve, a self-switching option the SU line never offered.
| Model | Airtac SU32~50 Standard Cylinder SU32X90STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X90STC |
| Bore size | Ø32 mm |
| Stroke | 90 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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, 21 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU32X90STC carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAU32X90STC 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). |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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.
Uses the 402 N push force at 0.5 MPa to reliably push lightweight molded parts out of a machining fixture.
Short 90mm stroke actuates a routing gate on a packaging line, handling loads safely within the 20 kg vertical lift limit.
Compact profile body fits tight conveyor frames to push sorted inventory items into secondary chutes.
To replace this SU32X90STC with the SAU32X90STC, verify the 32mm bore, 90mm stroke, 1/8" port, and rod-end thread M10x1.25. Confirm your TC mounting accessory, which carries over directly via SC-series compatibility. Because this SKU has the -S magnet, note that your legacy CS1-B/DS1-B switches will not fit the SAU groove; you must update to CMSG/DMSG/EMSG sensors. If your application needs higher force, the neighboring 40mm bore yields 628 N push at 0.5 MPa. For any load holding, remember this cylinder drifts without live air—the 21mm cushions only decelerate—so add an external rod lock or pilot-operated check valve. At 90mm stroke, side-load rod bending is minimal, but ensure proper guide alignment.
Replacement checklist
Yes, the SU32X90STC is discontinued. The direct replacement is the AirTAC SAU32X90STC. It matches the 32mm bore, 90mm stroke, 402 N output force, 1/8" port, and TC mounting interface, so it bolts right in.
At 0.5 MPa it pushes 402 N and pulls 345 N; at 0.7 MPa it pushes 563 N, with a theoretical max of 82 kgf at 1.0 MPa. Because this is an -S model with a magnet, it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X90STC replacement — usually within 7-8 hours.