This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X620S, 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 SU32X620S is a double-acting profile-type standard cylinder with a Ø32mm bore and 620mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X620S, which matches its bore, stroke, force and mounting.
The AirTAC SU32X620S is a discontinued double-acting profile cylinder with a 32mm bore and 620mm stroke. It delivers 402N push and 345N pull at 0.5MPa via a 1/8" port. The direct replacement is the SAU32X620S, matching the bore, stroke, force, port and SC-series mounting.
This compact extruded-aluminium body is shorter than an ISO 15552 equivalent. The SAU upgrade switches the -S magnet from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors, and adds an optional SAUF built-in valve.
| Model | Airtac SU32~50 Standard Cylinder SU32X620S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X620S |
| Bore size | Ø32 mm |
| Stroke | 620 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 SAU32X620S 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 SAU32X620S 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. |
| ×620 | 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 small cardboard cartons on a sorting line using a safe 241N working load, with the 620mm stroke spanning wider transfer gaps.
Ejects small machined parts from a fixture over a 620mm reach, requiring external guide rails to prevent rod bending on the extended stroke.
To replace this SU32X620S with the SAU32X620S, confirm the 32mm bore, 620mm 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 sizing neighbours, a 40mm bore yields 628N push at 0.5MPa. For the 620mm stroke, use external guides to prevent rod bending under side loads. A plain cylinder drifts on air loss; use an external rod lock for held loads. The SAUF variant adds a built-in 4M valve the SU lacked.
Replacement checklist
Yes, the SU32X620S is discontinued. The direct replacement is the SAU32X620S, offering identical 32mm bore, 620mm stroke, 402N force, 1/8" port and SC-series mounting compatibility.
It pushes 402N and pulls 345N at 0.5MPa, pushing 563N at 0.7MPa, with a theoretical max of 82kgf at 1.0MPa. The -S magnet works with legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X620S replacement — usually within 7-8 hours.