This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X450, 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 SU32X450 is a double-acting profile-type standard cylinder with a Ø32mm bore and 450mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X450, which matches its bore, stroke, force and mounting.
The AirTAC SU32X450 is a discontinued double-acting profile-type cylinder with a 32 mm bore and 450 mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 cylinder of the same bore and delivers 402 N push force at 0.5 MPa. AirTAC replaced this end-of-life unit with the SAU32X450, a direct replacement retaining the exact bore, stroke, output force, 1/8" port, and SC-series mounting.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors (the SU used legacy CS1-B/DS1-B switches) and adds the SAUF built-in-valve variant the original line lacked. Note this non-magnet SKU cannot accept a sensor.
| Model | Airtac SU32~50 Standard Cylinder SU32X450 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X450 |
| Bore size | Ø32 mm |
| Stroke | 450 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 SAU32X450 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 SAU32X450 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. |
| ×450 | 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 cartons off a sorting line using a 450 mm reach, operating safely within the 241 N working load limit.
Ejects molded plastic parts from a press area, relying on the 21 mm adjustable air cushions to decelerate the 12 mm rod at stroke ends.
Opens and closes lightweight access doors on machinery where the compact profile barrel saves space compared to standard ISO cylinders.
To replace this discontinued SU32X450, order the SAU32X450 direct equivalent, verifying your 1/8" port, M10x1.25 rod thread, and SC-series mounting. Because this is a non-S SKU, it lacks a magnet and cannot hold a sensor; if you need position detection, specify an SAU32X450-S and migrate to CMSG/DMSG/EMSG switches. For load holding, be aware the air cushion only decelerates the piston—it will not lock the load on air loss, so add an external rod lock or pilot-operated check valve. With the 450 mm stroke, prevent rod bending by guiding the load externally to avoid side-load forces. If you need more force, the neighboring 40 mm bore yields 628 N push at 0.5 MPa; if less is acceptable, a 25 mm bore (if available) or simply lowering pressure reduces output.
Replacement checklist
Yes, the SU32X450 is discontinued. The direct replacement is the AirTAC SAU32X450. It matches the 32 mm bore, 450 mm stroke, 402 N force, 1/8" port, and SC-series mounting, so it fits the same application directly.
At 0.5 MPa it pushes 402 N and pulls 345 N; at 0.7 MPa it pushes 563 N, and the theoretical maximum is 82 kgf at 1.0 MPa. This specific SKU has no magnet (-S), so it cannot accept a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X450 replacement — usually within 7-8 hours.