This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X875S, 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 SU32X875S is a double-acting profile-type standard cylinder with a Ø32mm bore and 875mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X875S, which matches its bore, stroke, force and mounting.
The AirTAC SU32X875S is a discontinued double-acting profile-type cylinder with a 32mm bore and 875mm stroke. Delivering 402N push at 0.5MPa, its direct replacement is the SAU32X875S, matching the bore, stroke, force, 1/8" port and SC-series mounting. The extruded aluminium body is more compact than an ISO 15552 equivalent of the same bore.
This -S SKU has a piston magnet for legacy CS1-B/DS1-B switches; the SAU replacement upgrades to CMSG/DMSG/EMSG sensors. The SAU line also adds a SAUF valve-integrated variant the SU lacked.
| Model | Airtac SU32~50 Standard Cylinder SU32X875S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X875S |
| Bore size | Ø32 mm |
| Stroke | 875 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 SAU32X875S 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 SAU32X875S 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. |
| ×875 | 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.
Ejects light components from storage bins, where the compact profile body saves space and the 20kg vertical lift capacity handles small parts.
Actuates guide rollers in a printing machine, benefiting from adjustable 21mm cushions at both ends to decelerate the long 875mm travel smoothly.
To replace this SU32X875S, order the SAU32X875S direct: verify the 32mm bore, 875mm stroke, 1/8" port (PT/G/NPT) and SC-series mounting. The -S magnet means you must migrate from CS1-B/DS1-B to CMSG/DMSG/EMSG sensors. Sizing both ways: a 40mm bore gives 628N push @0.5MPa, while a 32mm gives 402N. For this 875mm stroke, use an external guide to prevent rod bending under side loads. The cylinder does not hold load on air loss; use an external rod lock or pilot-operated check valve. If valve integration is needed, explore the SAUF variant.
Replacement checklist
Yes, the SU32X875S is discontinued. The direct replacement is the AirTAC SAU32X875S. It matches the 32mm bore, 875mm stroke, 402N force, 1/8" port and SC-series mounting accessories. You just order the SAU equivalent.
The 32mm bore gives 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa. Because your SU has an -S magnet for 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 SAU32X875S replacement — usually within 7-8 hours.