This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X900, 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 SU32X900 is a double-acting profile-type standard cylinder with a Ø32mm bore and 900mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X900, which matches its bore, stroke, force and mounting.
The AirTAC SU32X900 is a discontinued double-acting profile-type cylinder with a 32mm bore and 900mm stroke. It delivers 402N push force at 0.5MPa via a 1/8 inch port. AirTAC replaced this unit with the SAU32X900 direct replacement, preserving the exact bore, stroke, output force, port size and SC-series mounting. The SAU upgrade is a direct because the extruded aluminum profile body is shorter and more compact than an ISO 15552 cylinder of the same bore.
This specific SKU lacks a magnet, so it cannot accept a sensor. If you previously used a magnet-equipped SU-S model, note the SAU upgrade transitions from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG family. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve the SU series never offered.
| Model | Airtac SU32~50 Standard Cylinder SU32X900 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X900 |
| Bore size | Ø32 mm |
| Stroke | 900 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 SAU32X900 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 SAU32X900 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. |
| ×900 | 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 light packages across a 900mm conveyor lane using a safe 241N working load, benefiting from the compact 32mm profile body to save machine space.
Indexes small jigs along a 900mm axis where the 1/8 inch port and 30-800 mm/s speed range provide precise pneumatic motion control.
To replace this SU32X900 with the SAU32X900, verify your 32mm bore, 900mm stroke, 1/8 inch port, and M10x1.25 rod thread. Because this SKU has no magnet (-S), it cannot accept a sensor; if your machine requires position detection, order the SAU32X900S and upgrade to CMSG/DMSG/EMSG switches. For load holding, note that a standard cylinder drifts on air loss—the 21mm adjustable cushions only decelerate near stroke ends—so add an external rod lock or pilot-operated check valve for suspended loads. With a 900mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage. If you need more force, stepping up to a 40mm bore yields 628N push at 0.5MPa; dropping to a shorter stroke preserves the 402N force class while reducing footprint.
Replacement checklist
Yes, the AirTAC SU32X900 is discontinued and end-of-life. The direct replacement is the SAU32X900. It preserves the same 32mm bore, 900mm stroke, 402N force at 0.5MPa, 1/8 inch port, and SC-series mounting accessories, so it fits the same application directly.
The 32mm bore generates 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa. This specific SKU lacks a magnet and cannot take a sensor. If you need detection, the SAU32X900S replacement uses modern CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X900 replacement — usually within 7-8 hours.