This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X570S, 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 SU50X570S is a double-acting profile-type standard cylinder with a Ø50mm bore and 570mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X570S, which matches its bore, stroke, force and mounting.
The AirTAC SU50X570S is a discontinued double-acting profile-type cylinder with a 50mm bore and 570mm stroke, delivering 982 N push and 825 N pull at 0.5 MPa through a 1/4" port. AirTAC replaced this unit with the SAU50X570S, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors, superseding the legacy CS1-B/DS1-B switches used on this -S SKU, and adds a new SAUF built-in-valve option. Note that standard cylinders drift without live air; use an external rod lock for load holding.
| Model | Airtac SU32~50 Standard Cylinder SU50X570S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X570S |
| Bore size | Ø50 mm |
| Stroke | 570 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 SAU50X570S 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 SAU50X570S 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. |
| ×570 | 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.
Actuates routing gates on packaging lines, using the 570mm stroke to shift products between parallel conveyors with 982 N push at 0.5 MPa.
Raises light pallets or totes up to 50 kg in order-picking stations, requiring external guides to manage rod bending over the long 570mm extension.
Pushes machined parts out of a CNC enclosure, benefiting from the adjustable 21mm air cushions to decelerate the 50mm bore at stroke ends.
To replace this SU50X570S, order the SAU50X570S direct equivalent, verifying your 1/4" port thread (PT/G/NPT), M16x1.5 rod end, and SC-series mounting hardware. Because the -S magnet is present, prepare to swap legacy CS1-B/DS1-B switches for the modern CMSG/DMSG/EMSG sensor family. For loads needing 1767 N push at 0.9 MPa, the 50mm bore is adequate, but if downward sizing is possible, a 40mm bore yields 628 N at 0.5 MPa. At 570mm, this long stroke demands external guides to prevent rod bending under side loads. The plain cylinder does not hold load on air loss; add a pilot-operated check valve. If self-switching is desired, explore the SAUF valve-integrated variant.
Replacement checklist
Yes, the AirTAC SU50X570S is discontinued. The direct replacement is the SAU50X570S. It matches the 50mm bore, 570mm stroke, 982 N force at 0.5 MPa, 1/4" port, and SC-series mounting. The main change is that your legacy CS1-B/DS1-B sensors must be replaced by CMSG/DMSG/EMSG switches on the SAU model.
The 50mm bore 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. The 21mm adjustable air cushions only decelerate the piston near stroke end; they do not hold load. If air pressure drops, the cylinder will drift, so an external rod lock or pilot-operated check valve is required for secure load holding.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X570S replacement — usually within 7-8 hours.