This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X770S, 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 SU32X770S is a double-acting profile-type standard cylinder with a Ø32mm bore and 770mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X770S, which matches its bore, stroke, force and mounting.
The AirTAC SU32X770S is a discontinued double-acting profile-type cylinder with a 32 mm bore and 770 mm stroke. Delivering 402 N push force at 0.5 MPa, it features an extruded aluminum barrel and adjustable cushions at both ends. AirTAC replaced this EOL unit with the SAU32X770S, a direct replacement retaining the exact bore, stroke, force, 1/8" port, and SC-series mounting.
The -S magnet on this legacy model paired with CS1-B/DS1-B switches, but the SAU replacement upgrades to CMSG/DMSG/EMSG sensors. The SAU line also introduces the SAUF built-in 4M solenoid valve option, which the SU series lacked.
| Model | Airtac SU32~50 Standard Cylinder SU32X770S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X770S |
| Bore size | Ø32 mm |
| Stroke | 770 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 SAU32X770S 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 SAU32X770S 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. |
| ×770 | 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 lightweight machined parts over a 770 mm path, where the shorter profile body and adjustable end cushions prevent part damage.
To replace the SU32X770S, order the SAU32X770S direct: verify your 32 mm bore, 770 mm stroke, 1/8" port, M10x1.25 rod thread, and SC-series mounting. Because the -S magnet is present, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. If you need integrated flow control, the SAUF variant adds a built-in valve the SU lacked. For loads needing 563 N at 0.7 MPa, step up to a 40 mm bore; if 402 N is excessive, a 32 mm is still your most compact choice. At 770 mm, this long stroke risks rod bending under side loads, so use an external guide. A plain cylinder drifts without air; use a rod lock or pilot-operated check valve for load holding.
Replacement checklist
Yes, the SU32X770S is discontinued and end-of-life. The direct replacement is the AirTAC SAU32X770S. It shares the identical 32 mm bore, 770 mm stroke, 402 N force, 1/8" port, and SC-series mounting, so it fits the same application directly.
The 32 mm bore generates 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 your SU model has the -S magnet, note that the SAU replacement requires current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X770S replacement — usually within 7-8 hours.