This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X300, 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 SU32X300 is a double-acting profile-type standard cylinder with a Ø32mm bore and 300mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X300, which matches its bore, stroke, force and mounting.
The AirTAC SU32X300 is a discontinued double-acting profile-type cylinder with a 32mm bore and 300mm stroke. It delivers 402N push at 0.5MPa and features an extruded aluminum body with adjustable air cushions at both ends, making it more compact than an ISO 15552 cylinder of the same bore. AirTAC replaced this unit with the SAU32X300 direct replacement, retaining the exact 1/8" port, M10x1.25 rod thread, and SC-series mounting compatibility.
Because this specific SKU lacks a magnet, it cannot accept any sensor, whereas the -S variants of the legacy SU used CS1-B/DS1-B switches that now require CMSG/DMSG/EMSG sensors on the SAU. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered.
| Model | Airtac SU32~50 Standard Cylinder SU32X300 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X300 |
| Bore size | Ø32 mm |
| Stroke | 300 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 SAU32X300 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 SAU32X300 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. |
| ×300 | 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.
Pushes lightweight cardboard cartons on a 300mm stroke at 402N push force, ideal for low-pressure routing gates in distribution centers.
Shifts small storage bins between zones with a 20kg vertical lift capacity, requiring an external check valve to prevent drifting on air loss.
To replace the SU32X300, order the SAU32X300 direct equivalent, verifying your 1/8" port thread (PT, G, or NPT) and SC-series mounting hardware like LB or FA brackets. If downsizing from a 40mm bore, note the 40mm offers 628N push at 0.5MPa versus this 32mm's 402N; if upsizing is needed, the 40mm bore is the next step. This 300mm stroke requires external guide rails to prevent rod bending and side-load wear. Remember that a standard cylinder does not hold load without live air—the cushion only decelerates—so fit an external rod lock or pilot-operated check valve for vertical loads. Since this SKU has no magnet, no sensor can be fitted.
Replacement checklist
Yes, the SU32X300 is discontinued. The direct replacement is the AirTAC SAU32X300, which matches the 32mm bore, 300mm stroke, 402N force, 1/8" port, and SC-series mounting accessories.
At 0.5MPa it provides 402N push and 345N pull, 563N push at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa. This specific SKU lacks a magnet and cannot take a sensor; legacy SU -S models used CS1-B/DS1-B switches, but the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X300 replacement — usually within 7-8 hours.