This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X210, 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 SU50X210 is a double-acting profile-type standard cylinder with a Ø50mm bore and 210mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X210, which matches its bore, stroke, force and mounting.
The AirTAC SU50X210 is a discontinued double-acting profile-type cylinder with a 50mm bore and 210mm stroke, delivering 982N push force at 0.5MPa via a 1/4" port. AirTAC replaced it with the SAU50X210 direct replacement, featuring the exact same body, stroke, force, and SC-series mounting.
This compact extruded-aluminum barrel is shorter than an ISO 15552 equivalent. As a no-S SKU, it lacks a magnet and cannot take a sensor.
| Model | Airtac SU32~50 Standard Cylinder SU50X210 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X210 |
| Bore size | Ø50 mm |
| Stroke | 210 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 SAU50X210 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 SAU50X210 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. |
| ×210 | 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 cartons at 90 degrees on a sorting line with a safe 589N working load, fitting neatly into existing SC-series mounting brackets.
Acts as a pneumatic stop for 50kg pallet loads, using its adjustable 21mm cushions to decelerate smoothly without external shock absorbers.
Secures medium workpieces during machining, delivering 982N of push force at 0.5MPa while maintaining a compact profile body.
To replace this SU50X210, order the SAU50X210 direct equivalent, verifying your 1/4" port, M16x1.5 rod thread, and SC-series mounts. Because this is a no-S SKU, it cannot accept a magnetic switch; if sensing is needed, specify an SAU-S model and migrate from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches. For load holding, note that the 21mm cushions only decelerate; add an external rod lock or pilot-operated check valve to prevent drift. At 210mm stroke, rod bending is low, but always guide the load to prevent side-load wear. If downsizing, a 40mm bore yields 628N push; if upsizing, a 63mm bore provides 1559N. The SAUF variant adds a built-in valve the SU lacked.
Replacement checklist
Yes, the SU50X210 is discontinued. The direct replacement is the AirTAC SAU50X210. It shares the identical 50mm bore, 210mm stroke, 982N force, 1/4" port, and SC-series mounting, so it drops right into the same application.
It delivers 982N push and 825N pull at 0.5MPa, 1374N push at 0.7MPa, and a theoretical max of 200kgf at 1.0MPa. Because this specific SKU lacks a magnet (no -S), it cannot accept a sensor; the SAU-S replacement uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X210 replacement — usually within 7-8 hours.