This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X375S, 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 SU32~50 Standard Cylinder SU32X375S is a double-acting profile-type standard cylinder with a Ø32mm bore and 375mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X375S, which matches its bore, stroke, force and mounting.
The AirTAC SU32X375S is a discontinued double-acting profile-type cylinder with a 32mm bore and 375mm stroke. Delivering 402 N push at 0.5 MPa, it uses an extruded aluminum barrel that is more compact than an ISO 15552 unit of the same bore. AirTAC replaced this EOL model with the SAU32X375S, a direct upgrade retaining the exact bore, stroke, force, 1/8" port, and SC-series mounting.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors to replace this unit's legacy CS1-B/DS1-B switches, and offers a SAUF built-in-valve variant the SU line lacked. Note that a plain cylinder drifts without live air; the 21 mm cushions only decelerate near stroke end.
| Model | Airtac SU32~50 Standard Cylinder SU32X375S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X375S |
| Bore size | Ø32 mm |
| Stroke | 375 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 SAU32X375S 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 SAU32X375S 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. |
| ×375 | 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 eject light machined components from a fixture.
Extends 375mm to actuate a routing gate on a conveyor, handling boxes up to the 20 kg vertical lift limit.
Clears small inventory items from gravity-fed shelves using the compact 32mm profile body.
To replace this SU32X375S, order the SAU32X375S direct equivalent, verifying the 1/8" port, M10x1.25 rod thread, and SC-series mounting hardware. Because the -S magnet is present, you must migrate from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family. If you need higher force, the neighboring 40mm bore provides 628 N push at 0.5 MPa; if lower force is acceptable, ensure your load stays under 241 N. For the 375mm stroke, use external guides to prevent rod bending and side-load damage. To hold a load vertically without air, add an external rod lock or pilot-operated check valve, as the cushions only decelerate. The SAUF valve-integrated option can also simplify cycling.
Replacement checklist
Yes, the AirTAC SU32X375S is discontinued. The direct replacement is the SAU32X375S. It shares the same 32mm bore, 375mm stroke, force, 1/8" port, and SC-series mounting accessories. You simply order the SAU equivalent.
It delivers 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical max of 82 kgf at 1.0 MPa. Because this SU32X375S has a magnet, it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to current CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X375S replacement — usually within 7-8 hours.