This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X160S, 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 SU40X160S 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 SAU40X160S, which matches its bore, stroke, force and mounting.
The AirTAC SU40X160S is a discontinued double-acting profile cylinder with a 40mm bore and 160mm stroke. It delivers 628N push and 528N pull at 0.5MPa via a 1/4" port. AirTAC replaced this unit with the SAU40X160S, a direct alternative sharing the exact bore, stroke, force, port and SC-series mounting.
This compact extruded-aluminium body is shorter than an ISO 15552 cylinder of the same bore. The SAU upgrade introduces CMSG/DMSG/EMSG sensors (replacing the legacy CS1-B/DS1-B switches on this -S model) and adds the SAUF built-in-valve variant.
| Model | Airtac SU32~50 Standard Cylinder SU40X160S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X160S |
| 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 SAU40X160S 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 SAU40X160S 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.
Pushes medium cartons at 30-800 mm/s on packaging lines, using the 628N thrust to redirect items without stalling the belt.
Acts as a compact end-stop for lighter pallets, where the 32kg safe vertical lift capacity securely halts inbound goods.
Drives small machining clamps with 528N pull force, fitting neatly into tight cell footprints via the extruded profile body.
To replace this SU40X160S, order the SAU40X160S and verify the 1/4" port, M12x1.25 rod thread, and SC-series mounting. Because this SKU has the -S magnet, you must switch from CS1-B/DS1-B switches to the SAU's CMSG/DMSG/EMSG sensors. For sizing both ways: dropping to a 32mm bore yields 402N push at 0.5MPa, while stepping up to a 50mm bore gives 982N. A plain cylinder drifts without live air—the 21mm cushions only decelerate—so fit an external rod lock for held loads. At 160mm stroke, side-load is minimal, but always guide the rod to prevent bending.
Replacement checklist
Yes, the SU40X160S is discontinued. The direct replacement is the AirTAC SAU40X160S, which matches the 40mm bore, 160mm stroke, 628N force, 1/4" port and SC-series mounting. You simply order the SAU equivalent.
It pushes 628N and pulls 528N at 0.5MPa, pushes 879N at 0.7MPa, and reaches a 128kgf max at 1.0MPa. This -S SKU has a magnet for legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X160S replacement — usually within 7-8 hours.