This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X160STC, 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 SU40X160STC is a double-acting profile-type standard cylinder with a Ø40mm bore and 160mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X160STC, which matches its bore, stroke, force and mounting.
The AirTAC SU40X160STC is a discontinued double-acting profile-type cylinder with a 40mm bore, 160mm stroke, and a 1/4" port. It delivers 628N push and 528N pull at 0.5MPa. AirTAC replaced this EOL unit with the SAU40X160STC, a direct upgrade retaining the exact bore, stroke, force, port, and SC-series TC mounting interface.
When migrating, note that your legacy CS1-B/DS1-B switches are superseded by CMSG/DMSG/EMSG sensors on the SAU. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU32~50 Standard Cylinder SU40X160STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X160STC |
| Bore size | Ø40 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 SAU40X160STC carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAU40X160STC 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). |
|---|---|
| 40 | Bore size in mm. |
| ×160 | 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.
Uses the 160mm stroke to push cartons between conveyor lanes, relying on the 628N push force at 0.5MPa for reliable lateral transfers.
Acts as a pneumatic stop for incoming pallets on a roller bed, absorbing kinetic energy via the adjustable 21mm air cushions at both ends.
Secures aluminum housings during machining operations, providing 528N pull force at 0.5MPa while maintaining a compact profile body.
To replace this SU40X160STC, order the SAU40X160STC, confirming the 40mm bore, 160mm stroke, 1/4" port, M12x1.25 rod thread, and TC mounting. Because this SKU includes a magnet (-S), your legacy CS1-B/DS1-B switches will not fit the SAU groove; you must upgrade to CMSG/DMSG/EMSG sensors. If your application needs self-switching, explore the SAUF valve-integrated option. For loads needing 879N at 0.7MPa, this 40mm bore fits; if less force is needed, step down to a 32mm bore. At 160mm stroke, side-load risks are low, but always guide the rod to prevent bending. A plain cylinder drifts on air loss; for load holding, install an external rod lock or pilot-operated check valve, as the 21mm adjustable cushion only decelerates.
Replacement checklist
Yes, the SU40X160STC is discontinued. The direct replacement is the AirTAC SAU40X160STC. It shares the same 40mm bore, 160mm stroke, 628N force, 1/4" port, and TC mounting, so it drops right into your existing setup.
The 40mm bore provides 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, and a theoretical max of 128kgf at 1.0MPa. Because this is a -S magnet model, note that the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X160STC replacement — usually within 7-8 hours.