This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X180S, 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.
Airtac SU32~50 Standard Cylinder SU40X180S
The AirTAC SU32~50 Standard Cylinder SU40X180S is a double-acting profile-type standard cylinder with a Ø40mm bore and 180mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X180S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke180 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X180S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SU32~50 Standard Cylinder SU40X180S
The AirTAC SU40X180S is a discontinued double-acting profile-type cylinder with a 40mm bore and 180mm stroke. Delivering 628 N push force at 0.5 MPa, it features an extruded aluminum barrel and adjustable air cushions at both ends. AirTAC replaced this legacy unit with the SAU40X180S, a direct replacement retaining the exact same body profile, 1/4" port, M12x1.25 rod thread, and SC-series mounting compatibility.
Because this SKU includes a magnet (-S), it originally used CS1-B / DS1-B reed switches; upgrading to the SAU requires switching to the current CMSG / DMSG / EMSG sensor family. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve, an option the SU never offered.
Airtac SU32~50 Standard Cylinder SU40X180S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X180S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X180S |
| Bore size | Ø40 mm |
| Stroke | 180 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 SAU40X180S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAU40X180S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU32~50 Standard Cylinder SU40X180S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×180 | 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.
Where the Airtac SU32~50 Standard Cylinder SU40X180S Is Used
Package Diverting
Pushes lightweight cartons off a sorting line using 628 N of thrust at 0.5 MPa, with the 180mm stroke clearing guide rails.
Clamp Actuation
Drives small secondary clamps on an CNC fixture, dropping into existing SC-series mounting holes without redesigning the bracket.
Replacing the Airtac SU32~50 Standard Cylinder SU40X180S with the SAU40X180S
To replace this discontinued SU40X180S, order the SAU40X180S. Verify your 1/4" port thread (PT, G, or NPT) and SC-series mounting brackets (LB, FA, FB, CA, CB, or TC). Because the -S magnet is present, note that your legacy CS1-B / DS1-B switches must be replaced with CMSG / DMSG / EMSG sensors. If you need integrated flow control, consider the SAUF variant with its built-in valve. For sizing alternatives, a 32mm bore provides 402 N push at 0.5 MPa, while a 50mm bore offers 982 N. Remember that a standard cylinder drifts without live air; the cushions only decelerate the piston near stroke end. For load holding on air loss, install an external rod lock or pilot-operated check valve. At 180mm stroke, side-load and rod-bending are minimal, but ensure proper guide alignment to prevent premature seal wear.
Replacement checklist
- ✓ Same bore / stroke → SAU40X180S
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SU32~50 Standard Cylinder SU40X180S FAQ
Yes, the SU40X180S is discontinued. The direct replacement is the AirTAC SAU40X180S. It shares the identical 40mm bore, 180mm stroke, 1/4" port, output force, and SC-series mounting, so it drops straight into the same application. You just order the SAU equivalent.
The 40mm bore delivers 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a theoretical max of 128 kgf at 1.0 MPa. Because this is an -S model with a magnet, it used legacy CS1-B / DS1-B switches; the SAU replacement requires upgrading to CMSG / DMSG / EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X180S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X180S replacement — usually within 7-8 hours.