This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X30, 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 SU50X30 is a double-acting profile-type standard cylinder with a Ø50mm bore and 30mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X30, which matches its bore, stroke, force and mounting.
The AirTAC SU50X30 is a discontinued double-acting profile-type cylinder with a 50mm bore and 30mm stroke. It delivers 982 N push and 825 N pull at 0.5 MPa, making it a solid choice for compact mid-force tasks. AirTAC replaced this legacy unit with the SAU50X30, a direct upgrade retaining the exact 1/4" port, M16x1.5 rod thread, and SC-series mounting footprint.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU replacement modernizes sensing with CMSG/DMSG/EMSG switches (the SU used CS1-B/DS1-B) and introduces the SAUF built-in-valve variant.
| Model | Airtac SU32~50 Standard Cylinder SU50X30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X30 |
| Bore size | Ø50 mm |
| Stroke | 30 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 SAU50X30 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 SAU50X30 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. |
| ×30 | 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.
Ideal for holding parts during machining, using its 30mm stroke and 982 N push force to secure workpieces firmly in automated fixtures.
Provides rapid actuation for sorting light goods on a line, where the compact profile body saves space without sacrificing 50mm bore power.
Acts as a reliable pneumatic stop mechanism in material handling zones, easily handling the impact of incoming pallets via adjustable cushions.
To replace this SU50X30, order the SAU50X30 direct equivalent, matching the 50mm bore, 30mm stroke, 1/4" port, and SC-series mounts. If stepping up or down, neighbouring bores are 40mm (628 N push @0.5 MPa) and 63mm (1559 N push). This non-magnetic SKU cannot take a switch; if sensing is needed, specify an SAU-S model and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use a pilot-operated check valve for load holding. The SAUF valve-integrated option is also available if you need self-switching.
Replacement checklist
Yes, the AirTAC SU50X30 is discontinued. The direct replacement is the SAU50X30. It shares the same 50mm bore, 30mm stroke, 982 N output force at 0.5 MPa, 1/4" port, and SC-series mounting accessories, so it fits the same application directly.
At 0.5 MPa it pushes 982 N and pulls 825 N; at 0.7 MPa it pushes 1374 N, with a theoretical max of 200 kgf at 1.0 MPa. A plain cylinder does not hold a load without live air—the cushions only decelerate—so use an external rod lock or pilot-operated check valve for load holding.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X30 replacement — usually within 7-8 hours.