This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X1600S, 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 SU50X1600S is a double-acting profile-type standard cylinder with a Ø50mm bore and 1600mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X1600S, which matches its bore, stroke, force and mounting.
The AirTAC SU50X1600S is a discontinued double-acting profile-type cylinder with a 50mm bore and a 1600mm stroke. Because 1600mm exceeds the 1200mm maximum standard stroke for this bore, this unit is a non-standard, made-to-order configuration. It delivers a push force of 982 N at 0.5 MPa (pull 825 N) and features a 1/4" air port. AirTAC replaced the SU line with the SAU series, making the SAU50X1600S the direct replacement, retaining the same extruded aluminium profile body, force, port size and SC-series mounting accessories.
When upgrading to the SAU50X1600S, the body dimensions and performance remain identical, but the legacy CS1-B/DS1-B reed switches used on this -S magnet model are replaced by the current CMSG/DMSG/EMSG sensor family. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, a self-switching option the SU series never offered.
| Model | Airtac SU32~50 Standard Cylinder SU50X1600S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X1600S |
| Bore size | Ø50 mm |
| Stroke | 1600 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 SAU50X1600S 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 SAU50X1600S 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. |
| ×1600 | 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 heavy packages across a wide sorting lane over the full 1600mm extension, relying on the 982 N push force to deflect goods without stalling.
Transfers automotive sub-assemblies between distant workstations on a production line, requiring external guides to support the long 20mm rod during transit.
To replace this discontinued SU50X1600S, order the SAU50X1600S, confirming the 50mm bore, 1600mm non-standard stroke, 1/4" port, M16x1.5 rod thread and PT/G/NPT thread preference. Because this unit has the -S magnet, you must switch your legacy CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG sensors. You can reuse your existing SC-series mounting hardware like LB, FA or TC brackets. Due to the 1600mm stroke exceeding standard limits, an external guide is strongly recommended to prevent rod bending and side-load damage. A plain cylinder does not hold load on air loss; the 21mm adjustable cushion only decelerates near stroke end, so add an external rod lock or pilot-operated check valve for suspended loads.
Replacement checklist
Yes, the SU50X1600S is discontinued. The direct replacement is the AirTAC SAU50X1600S. It shares the same 50mm bore, 1600mm stroke, 982 N output force, 1/4" port and SC-series mounting, so it fits the same application directly.
At 0.5 MPa it provides 982 N push and 825 N pull force, 1374 N push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa. Because this SKU includes a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU50X1600S replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X1600S replacement — usually within 7-8 hours.