This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X105, 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 SU50X105 is a double-acting profile-type standard cylinder with a Ø50mm bore and 105mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X105, which matches its bore, stroke, force and mounting.
The AirTAC SU50X105 is a discontinued double-acting profile-type cylinder with a 50mm bore and 105mm stroke. It delivers 982N push force at 0.5MPa through a 1/4" port. AirTAC replaced this legacy unit with the SAU50X105, a direct upgrade retaining the exact body, stroke, force, port size and SC-series mounting footprint.
Because this SKU lacks a magnet (-S), it cannot accept position sensors. The SAU upgrade family supports modern CMSG/DMSG/EMSG switches on magnetized variants, plus a new SAUF built-in-valve option.
| Model | Airtac SU32~50 Standard Cylinder SU50X105 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X105 |
| Bore size | Ø50 mm |
| Stroke | 105 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 SAU50X105 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 SAU50X105 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. |
| ×105 | 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 medium-weight cartons off a main conveyor line using 982N of thrust at 0.5MPa.
Acts as a pneumatic stop for pallets entering a stretch wrapper, handling 50kg vertical lift loads safely.
Secures aluminum housings during CNC machining, providing firm 589N safe working clamping force.
To replace the SU50X105, order the SAU50X105. Verify your 1/4" port thread (PT, G or NPT) and SC-series mounting brackets (LB, FA, FB, CA, CB, TC). This non-magnetized SKU cannot hold a position switch; if you need sensing, select an SAU50X105S and upgrade to CMSG/DMSG/EMSG sensors. Since this plain cylinder drifts on air loss, add an external rod lock or pilot-operated check valve for suspended loads. For higher force needs, step up to the 63mm bore (1559N push at 0.5MPa); for lighter duty, drop to the 40mm bore (628N).
Replacement checklist
Yes, the SU50X105 is discontinued. The direct replacement is the AirTAC SAU50X105. It matches the 50mm bore, 105mm stroke, 982N force, 1/4" port and SC-series mounting accessories, so no mechanical changes are needed.
At 0.5MPa it pushes 982N and pulls 825N; at 0.7MPa push is 1374N; max theoretical force is 200kgf at 1.0MPa. This specific SKU has no magnet, so it cannot take sensors. If you need switches, order the SAU50X105S which uses CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X105 replacement — usually within 7-8 hours.