This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X280N, 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 SU32X280N is a double-acting profile-type standard cylinder with a Ø32mm bore and 280mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X280N, which matches its bore, stroke, force and mounting.
The AirTAC SU32X280N is a discontinued double-acting profile-type cylinder with a 32mm bore and 280mm stroke. It delivers 402N push and 345N pull at 0.5MPa via a 1/8 port. AirTAC replaced it with the SAU32X280N direct replacement, matching the exact bore, stroke, output force, port size and SC-series mounting. This NBR-sealed unit operates from -20 to +70C.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors and a SAUF built-in-valve option the SU lacked. Because this specific SKU lacks a magnet, it cannot accept any sensor. The 21mm adjustable cushions only decelerate the piston; they do not hold loads on air loss.
| Model | Airtac SU32~50 Standard Cylinder SU32X280N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X280N |
| Bore size | Ø32 mm |
| Stroke | 280 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 SAU32X280N 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 SAU32X280N 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. |
| ×280 | 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 402N push force at 0.5MPa to eject light molded components from a machining center.
Actuates a routing gate on a packaging line, safely handling the 241N working load limit.
Raises a 20kg payload to a shelf stop, utilizing the 280mm stroke within a compact profile body.
To replace this discontinued SU32X280N, order the SAU32X280N. Confirm the 32mm bore, 280mm stroke, 1/8 port, M10x1.25 rod thread, PT thread type, and SC-series mounting. This SKU has no magnet (-S), so it cannot accept position sensors; if sensing is needed, specify an SAU32X280NS and migrate to CMSG/DMSG/EMSG switches. For higher loads, the 40mm bore yields 628N push at 0.5MPa; for tighter spaces, verify stroke requirements. At 280mm stroke, use a guide to prevent rod bending from side loads. Note: the cushion only decelerates; use an external rod lock or pilot-operated check valve to hold loads. The SAUF valve-integrated variant can simplify cycling.
Replacement checklist
Yes, the SU32X280N is discontinued. The direct replacement is the SAU32X280N. It matches the 32mm bore, 280mm stroke, 402N force, 1/8 port, and SC-series mounting. The SAU also adds a SAUF built-in-valve option.
It delivers 402N push and 345N pull at 0.5MPa, 563N at 0.7MPa, and 82kgf max at 1.0MPa. This specific NBR-sealed SKU lacks a magnet, so it cannot accept sensors. The SAU replacement uses CMSG/DMSG/EMSG sensors if sensing is required.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X280N replacement — usually within 7-8 hours.