This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X40S, 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 SU32X40S
The AirTAC SU32~50 Standard Cylinder SU32X40S is a double-acting profile-type standard cylinder with a Ø32mm bore and 40mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X40S, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke40 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAU32X40S
- 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 SU32X40S
The AirTAC SU32X40S is a discontinued double-acting profile-type cylinder with a 32 mm bore and 40 mm stroke, delivering 402 N push force at 0.5 MPa. AirTAC replaced this end-of-life unit with the SAU32X40S, a direct alternative retaining the exact bore, stroke, output force, 1/8" port and SC-series mounting. Because the body is an extruded aluminum profile rather than a tie-rod design, it is noticeably shorter than an ISO 15552 cylinder of the same bore.
The replacement SAU32X40S keeps the identical 12 mm rod and M10x1.25 thread but upgrades the sensor system: your old -S magnet worked with legacy CS1-B/DS1-B switches, while the SAU requires current CMSG/DMSG/EMSG sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve that the SU line never offered.
Airtac SU32~50 Standard Cylinder SU32X40S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU32X40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X40S |
| Bore size | Ø32 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU32X40S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAU32X40S 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 SU32X40S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 SU32X40S Is Used
Small Part Ejection
Ideal for pushing lightweight molded parts out of a fixture using a safe 241 N working load over the short 40 mm stroke.
Package Diverting
Provides a compact 20 kg vertical lift capacity to actuate diverter arms on a packaging line without requiring ISO 15552 bulk.
Clamp Actuation
Delivers 345 N pull force at 0.5 MPa to retract small clamping jaws in dense electronic assembly machinery.
Replacing the Airtac SU32~50 Standard Cylinder SU32X40S with the SAU32X40S
To replace the SU32X40S, order the SAU32X40S and verify your 1/8" port thread (PT, G or NPT) and SC-series mounting accessories like LB or FA, which are fully interchangeable. Because this SKU includes the -S magnet, you must upgrade your legacy CS1-B/DS1-B switches to the CMSG/DMSG/EMSG family. For loads needing 402 N push at 0.5 MPa, the 32 mm bore is correct; if you need less force, a 25 mm bore (if available) suffices, or step up to a 40 mm bore for 628 N. Remember that a standard cylinder drifts without live air—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for load holding. If your cycle demands self-switching without external plumbing, consider the SAUF valve-integrated option.
Replacement checklist
- ✓ Same bore / stroke → SAU32X40S
- ✓ 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 SU32X40S FAQ
Yes, the AirTAC SU32X40S is discontinued. The direct replacement is the SAU32X40S. It matches the 32 mm bore, 40 mm stroke, 1/8" port, 12 mm rod and SC-series mounting. You simply order the SAU32X40S, though you must update your sensors.
At 0.5 MPa it pushes 402 N and pulls 345 N; at 0.7 MPa it pushes 563 N, with a theoretical max of 82 kgf at 1.0 MPa. The -S suffix means it has a piston magnet for legacy CS1-B/DS1-B switches; the SAU replacement upgrades to CMSG/DMSG/EMSG sensors.
Request a Quote for the SAU32X40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X40S replacement — usually within 7-8 hours.