This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X10S, 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 SU40X10S is a double-acting profile-type standard cylinder with a Ø40mm bore and 10mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X10S, which matches its bore, stroke, force and mounting.
The AirTAC SU40X10S is a discontinued double-acting profile-type cylinder with a 40mm bore and 10mm stroke. It delivers 628N push force at 0.5MPa via a 1/4" port. AirTAC replaced this with the SAU40X10S, a direct upgrade retaining the exact body, stroke, force, and SC-series mounting.
This -S SKU includes a piston magnet for legacy CS1-B/DS1-B switches; the SAU replacement transitions to current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF valve-integrated variant.
| Model | Airtac SU32~50 Standard Cylinder SU40X10S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X10S |
| Bore size | Ø40 mm |
| Stroke | 10 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 SAU40X10S 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 SAU40X10S 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. |
| ×10 | 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.
Ideal for securing lightweight components in machining fixtures using its 628N push force over a fast 10mm travel.
Provides compact ejection of small parts from automated assembly stations, fitting neatly within tight machine envelopes.
Actuates small diverter gates on conveyor systems where a short 10mm stroke and 528N pull force are sufficient.
To replace this discontinued SU40X10S, order the SAU40X10S. Verify your 1/4" port, M12x1.25 rod thread, and SC-series mount. Because this has the -S magnet, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. If you need higher force, the 50mm bore offers 982N push at 0.5MPa; if lower, the 32mm bore provides 402N. This cylinder does not hold load without live air; use an external rod lock for vertical holding. The SAUF variant adds a built-in 4M solenoid valve if you need self-switching. Stroke is only 10mm, so side-load bending is minimal.
Replacement checklist
Yes, the AirTAC SU40X10S is discontinued. The direct replacement is the SAU40X10S. It shares the same 40mm bore, 10mm stroke, 628N force, 1/4" port, and SC-series mounting, but uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
This double-acting cylinder has a 1/4" port. It generates 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, 1130N push at 0.9MPa, and a theoretical maximum of 128kgf at 1.0MPa. The air cushion only decelerates the load; it does not hold position without live air.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X10S replacement — usually within 7-8 hours.