This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X730, 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 SU50X730 is a double-acting profile-type standard cylinder with a Ø50mm bore and 730mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X730, which matches its bore, stroke, force and mounting.
The AirTAC SU50X730 is a discontinued double-acting profile-type cylinder with a 50mm bore and 730mm stroke. It delivers 982 N push force at 0.5 MPa via a 1/4" port. AirTAC replaced it with the SAU50X730, a direct upgrade retaining the exact body, force, and SC-series mounting.
The SAU upgrade uses current CMSG/DMSG/EMSG sensors, though this base SU SKU lacks a magnet and cannot take switches. The SAUF variant adds a built-in valve the SU lacked. Being an extruded profile, it is more compact than an ISO 15552 equivalent.
| Model | Airtac SU32~50 Standard Cylinder SU50X730 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X730 |
| Bore size | Ø50 mm |
| Stroke | 730 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 SAU50X730 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 SAU50X730 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. |
| ×730 | 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 packages across a 730mm conveyor lane using the 982 N push force at 0.5 MPa, guided externally to prevent rod bending.
Ejects molded parts from a press using the shorter extruded profile body, saving space compared to standard ISO cylinders.
To replace the SU50X730, order the SAU50X730. Verify your 50mm bore, 730mm stroke, 1/4" port, and M16x1.5 rod thread. Because this SKU has no magnet (-S), it cannot accept sensors; if you need position detection on the SAU, specify the -S option and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. For loads needing 1767 N at 0.9 MPa, step up to the 63mm bore; if less force is needed, the 40mm bore provides 628 N. Note that a plain cylinder drifts without live air—use an external rod lock or pilot-operated check valve for holding. Finally, the 730mm stroke demands external guides to prevent rod bending under side loads.
Replacement checklist
Yes, the SU50X730 is discontinued. The direct replacement is the AirTAC SAU50X730. It shares the same 50mm bore, 730mm stroke, 982 N output force, 1/4" port, and SC-series mounting accessories, fitting directly into your existing application.
The 50mm bore yields 982 N push and 825 N pull at 0.5 MPa, 1374 N at 0.7 MPa, and a 200 kgf max at 1.0 MPa. This specific SKU lacks a magnet, so it cannot accept sensors. The SAU replacement supports CMSG/DMSG/EMSG switches if you order the -S magnet version.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X730 replacement — usually within 7-8 hours.