This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X1350S, 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 SU50X1350S is a double-acting profile-type standard cylinder with a Ø50mm bore and 1350mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X1350S, which matches its bore, stroke, force and mounting.
The AirTAC SU50X1350S is a discontinued double-acting profile-type cylinder with a 50mm bore and 1350mm stroke. Because 1350mm exceeds the 1200mm standard maximum for this bore, this specific SKU was a non-standard, made-to-order unit delivering 982 N push force at 0.5 MPa. AirTAC replaced the SU line with the SAU family; the direct replacement is the SAU50X1350S, matching the body, bore, stroke, force, 1/4" port, and SC-series mounting.
This unit includes a piston magnet for legacy CS1-B/DS1-B switches, whereas the SAU replacement uses modern CMSG/DMSG/EMSG sensors. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU line never had.
| Model | Airtac SU32~50 Standard Cylinder SU50X1350S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X1350S |
| Bore size | Ø50 mm |
| Stroke | 1350 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 SAU50X1350S 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 SAU50X1350S 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. |
| ×1350 | 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 products between distant workstations on a wide conveyor belt using its 1350mm reach.
Extracts totes from deep shelving racks where the 50kg vertical lift capacity is sufficient.
Extends across a wide machine bed to position parts, requiring external guides to support the rod.
To replace this discontinued SU50X1350S, order the SAU50X1350S direct equivalent, ensuring you keep the 50mm bore, 1350mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting. Because this is a non-standard 1350mm stroke (exceeding the 1200mm max standard), expect made-to-order lead times. The -S magnet on your original worked with CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors, so budget for new switches. If sizing alternatives, a 40mm bore yields 628 N push at 0.5 MPa, while a 63mm bore yields 1559 N. Note that a plain cylinder drifts without live air—the cushions only decelerate, so use an external rod lock for held loads. Finally, at 1350mm, the Ø20mm rod is vulnerable to bending; use external guides to prevent side-load damage. The SAUF valve-integrated option is available if you need self-switching.
Replacement checklist
Yes, the SU50X1350S is discontinued. The direct replacement is the AirTAC SAU50X1350S. It offers identical body dimensions, 50mm bore, 1350mm stroke, output force, 1/4" port, and SC-series mounting compatibility, so it fits the same application directly.
At 0.5 MPa it pushes 982 N and pulls 825 N. Push is 1374 N at 0.7 MPa and 1767 N at 0.9 MPa, with a theoretical max of 200 kgf at 1.0 MPa. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches; the SAU replacement upgrades to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X1350S replacement — usually within 7-8 hours.