This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X150N, 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 SU50X150N is a double-acting profile-type standard cylinder with a Ø50mm bore and 150mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X150N, which matches its bore, stroke, force and mounting.
The AirTAC SU50X150N is a discontinued double-acting profile-type cylinder with a 50mm bore and 150mm stroke. Built with an extruded aluminium barrel and adjustable air cushions at both ends, it delivers 982 N push and 825 N pull at 0.5 MPa using a 1/4" port. AirTAC replaced this EOL unit with the SAU50X150N, a direct replacement sharing the exact same body dimensions, output force, porting and SC-series mounting.
Because this SKU lacks the -S magnet option, it cannot accept a magnetic sensor. The SAU upgrade also transitions sensing to the modern CMSG/DMSG/EMSG switch family and introduces the SAUF built-in 4M valve variant the SU line never had. The NBR seal handles -20 to +70 C.
| Model | Airtac SU32~50 Standard Cylinder SU50X150N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X150N |
| Bore size | Ø50 mm |
| Stroke | 150 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 SAU50X150N 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 SAU50X150N 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. |
| ×150 | 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 sorting line using 982 N of thrust at 0.5 MPa, with the 150mm stroke clearing guide rails cleanly.
Acts as a pneumatic stop for inbound pallets, absorbing kinetic energy through the 21mm adjustable air cushions at both ends.
Secures aluminium extrusions during machining, providing a safe 589 N working load while fitting into compact machinery footprints.
To replace this discontinued SU50X150N, order the SAU50X150N. Confirm the 1/4" port, M16x1.5 rod thread, 150mm stroke, and your SC-series mounting brackets (LB/FA/FB/CA/CB) carry over directly. Since this is a no-S SKU, it cannot take a sensor; if you need position detection on the SAU, you must order the -S version and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. At 150mm stroke, side-load and rod-bending risks are minimal, but always guide the load to prevent binding. If stepping down to a 40mm bore, expect only 628 N push at 0.5 MPa; stepping up to 63mm yields 1559 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates near stroke end—so fit an external rod lock or pilot-operated check valve for held loads. The SAUF valve-integrated option is available if you need self-switching.
Replacement checklist
Yes, the SU50X150N is discontinued. The direct replacement is the AirTAC SAU50X150N. It matches the 50mm bore, 150mm stroke, 1/4" port, M16x1.5 rod thread, output force, and SC-series mounting accessories, so it fits the same application without modification.
It delivers 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical max of 200 kgf at 1.0 MPa. Because this specific SKU lacks the -S magnet, it cannot accept a magnetic switch. If you need sensing on the SAU replacement, you must order the -S version, which uses current CMSG/DMSG/EMSG switches rather than the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X150N replacement — usually within 7-8 hours.