This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X440S, 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 SU40X440S
The AirTAC SU32~50 Standard Cylinder SU40X440S is a double-acting profile-type standard cylinder with a Ø40mm bore and 440mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X440S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke440 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X440S
- 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 SU40X440S
The AirTAC SU40X440S is a discontinued double-acting profile-type cylinder with a 40mm bore and 440mm stroke. It delivers 628N push and 528N pull at 0.5MPa, utilizing a 1/4" port and M12x1.25 rod thread. The direct replacement is the SAU40X440S, preserving the original bore, stroke, output force, port size, and SC-series mounting compatibility.
When upgrading, note that the SAU body uses current CMSG/DMSG/EMSG sensors instead of this unit's legacy CS1-B/DS1-B switches, and the SAUF variant adds a built-in valve the SU line lacked. Because the 440mm stroke is long, prevent rod bending by using external guides to manage side loads.
Airtac SU32~50 Standard Cylinder SU40X440S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X440S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X440S |
| Bore size | Ø40 mm |
| Stroke | 440 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 SAU40X440S 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 SAU40X440S 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 SU40X440S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×440 | 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 SU40X440S Is Used
Package Diverting
Pushes cartons off a sorting line using 628N thrust, with the 440mm stroke reaching across the belt.
Component Ejection
Clears machined parts from a fixture over a long distance, relying on adjustable cushions to brake smoothly.
Replacing the Airtac SU32~50 Standard Cylinder SU40X440S with the SAU40X440S
To replace this discontinued SU40X440S, order the SAU40X440S, confirming the 40mm bore, 440mm stroke, 1/4" port, and PT/G/NPT thread choice. Reusing your existing SC-series mounts ensures a direct. Because this SKU includes a magnet (-S), you must upgrade your sensors: the legacy CS1-B/DS1-B switches will not fit the SAU groove, so switch to CMSG/DMSG/EMSG. If you need higher force, the 50mm bore offers 982N push at 0.5MPa; if less is required, the 32mm bore provides 402N. For the 440mm stroke, add external linear guides to prevent rod bending under side loads. Remember, a standard cylinder drifts without live air; use an external rod lock or pilot-operated check valve for secure load holding. The SAUF variant offers a built-in 4M solenoid valve if you need integrated self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU40X440S
- ✓ 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 SU40X440S FAQ
Yes, the SU40X440S is discontinued. The direct replacement is the SAU40X440S. It matches the 40mm bore, 440mm stroke, 1/4" port, and SC-series mounting accessories, ensuring a seamless physical swap.
The cylinder provides 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, and a theoretical max of 128kgf at 1.0MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG sensors on the SAU.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X440S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X440S replacement — usually within 7-8 hours.