This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X230, 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 SU50X230 is a double-acting profile-type standard cylinder with a Ø50mm bore and 230mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X230, which matches its bore, stroke, force and mounting.
The AirTAC SU50X230 is a discontinued double-acting profile-type cylinder with a 50mm bore and 230mm stroke. It delivers 982N push and 825N pull at 0.5MPa, making it suitable for medium-duty handling. AirTAC replaced this end-of-life unit with the SAU50X230 direct replacement, retaining the exact 1/4" port, M16x1.5 rod thread, and SC-series mounting compatibility.
Because this SKU lacks a magnet, it cannot accept position sensors. The SAU upgrade introduces CMSG/DMSG/EMSG switch compatibility for its -S variants and a SAUF built-in-valve option the SU line never had.
| Model | Airtac SU32~50 Standard Cylinder SU50X230 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X230 |
| Bore size | Ø50 mm |
| Stroke | 230 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU50X230 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X230 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). |
|---|---|
| 50 | Bore size in mm. |
| ×230 | 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.
Actuates routing gates on 50kg-capacity conveyor lines, using the 230mm stroke to shift parcels between sorting lanes smoothly.
Functions as a pneumatic stop pin in low-profile pallet handling cells, holding loads safely within the 589N working limit.
Drives mid-force clamping jaws on machining fixtures, benefiting from the compact extruded profile to save valuable cell space.
To replace this SU50X230, order the SAU50X230 direct equivalent, verifying your 1/4" port thread (PT/G/NPT) and SC-series mounting hardware. Sizing both ways: dropping to a 40mm bore yields 628N push at 0.5MPa, while stepping up to a 63mm bore provides 1559N. This 230mm stroke is under the 1200mm maximum, so standard dimensions apply. Note that a plain cylinder drifts on air loss—the 21mm cushions only decelerate near stroke ends, so use an external rod lock or pilot-operated check valve for held loads. Since this specific SKU has no magnet, it cannot support sensing; if needed, specify an SAU50X230-S and migrate to CMSG/DMSG/EMSG switches.
Replacement checklist
Yes, the AirTAC SU50X230 is discontinued. The direct replacement is the SAU50X230. It matches the 50mm bore, 230mm stroke, 982N force at 0.5MPa, 1/4" port, and SC-series mounting accessories, so it fits the same application directly.
At 0.5MPa it pushes 982N and pulls 825N; at 0.7MPa it pushes 1374N, with a theoretical max of 200kgf at 1.0MPa. It cannot hold a load without live air—the cushions only decelerate. For load holding, use an external rod lock. Also, this no-magnet SKU cannot take sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X230 replacement — usually within 7-8 hours.