This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X40FA, 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 SU40X40FA
The AirTAC Airtac SU32~50 Standard Cylinder SU40X40FA is a double-acting profile-type standard cylinder with a Ø40mm bore and 40mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X40FA, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke40 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X40FA
- 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 SU40X40FA
The AirTAC SU40X40FA is a discontinued double-acting profile-type cylinder with a 40mm bore and 40mm stroke. Delivering 628N push force at 0.5MPa, its direct replacement is the SAU40X40FA, retaining the identical body dimensions, 1/4" port, and SC-series FA mounting interface.
Because this SKU lacks a magnet, it cannot accept a piston switch. The SAU upgrade introduces CMSG/DMSG/EMSG sensor compatibility for magnetized variants and a SAUF built-in valve option.
Airtac SU32~50 Standard Cylinder SU40X40FA Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X40FA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X40FA |
| Bore size | Ø40 mm |
| Stroke | 40 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 SAU40X40FA 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 SAU40X40FA 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 SU40X40FA
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | 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 SU40X40FA Is Used
Clamp Actuation
Ideal for securing medium workpieces during machining, utilizing the 628N push force to hold components firmly in jigs.
Package Diverting
Drives short-stroke routing gates on packaging lines, where the compact 40mm profile saves space without sacrificing speed.
Stopper Gates
Functions as a pneumatic stop in material handling systems, lifting a 40mm profile barrier to halt pallet movement.
Replacing the Airtac SU32~50 Standard Cylinder SU40X40FA with the SAU40X40FA
To replace this discontinued SU40X40FA, order the SAU40X40FA direct equivalent, verifying the 40mm bore, 40mm stroke, M12x1.25 rod thread, and 1/4" port. Reuse your existing SC-series FA foot mounting bracket. Since this specific SKU has no magnet (-S), it cannot support sensing; if you need position feedback, select an SAU40X40SFA and use current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. If your application requires holding a load without live air, add an external rod lock or pilot-operated check valve, as the standard cushion only decelerates. For higher force needs, step up to a 50mm bore (982N push @0.5MPa); for lighter loads, a 32mm bore provides 402N.
Replacement checklist
- ✓ Same bore / stroke → SAU40X40FA
- ✓ 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 SU40X40FA FAQ
Yes, the SU40X40FA is discontinued. The direct replacement is the SAU40X40FA. It offers identical bore, stroke, force, 1/4" port, and SC-series FA mounting, so it bolts right in.
At 0.5MPa it provides 628N push and 528N pull force, 879N push at 0.7MPa, and a theoretical max of 128kgf at 1.0MPa. This specific SKU has no magnet and cannot take a sensor; magnetized SAU replacements use CMSG/DMSG/EMSG switches.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X40FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X40FA replacement — usually within 7-8 hours.