This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X440S, 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 SU50X440S
The AirTAC SU32~50 Standard Cylinder SU50X440S is a double-acting profile-type standard cylinder with a Ø50mm bore and 440mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X440S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke440 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X440S
- 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 SU50X440S
The AirTAC SU50X440S is a discontinued double-acting profile-type cylinder with a 50mm bore and 440mm stroke. It delivered 982 N push and 825 N pull at 0.5 MPa via a 1/4" port. AirTAC replaced this EOL unit with the SAU50X440S, a direct upgrade retaining the exact bore, stroke, force, port size, and SC-series mounting footprint.
The SAU replacement modernizes sensing by adopting CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B reed sensors used on this -S SKU. It also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU line lacked.
Airtac SU32~50 Standard Cylinder SU50X440S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X440S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X440S |
| Bore size | Ø50 mm |
| Stroke | 440 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 SAU50X440S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X440S 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 SU50X440S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | 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 SU50X440S Is Used
Package Diverting
Pushes cartons at 90 degrees on a sorting line using the 982 N push force at 0.5 MPa, with the 440 mm stroke clearing adjacent lanes.
Component Ejection
Ejects machined parts from a fixture, relying on the adjustable 21 mm air cushions to decelerate the rod smoothly at stroke ends.
Replacing the Airtac SU32~50 Standard Cylinder SU50X440S with the SAU50X440S
To replace this discontinued SU50X440S, order the SAU50X440S. Confirm your 1/4" port, M16x1.5 rod thread, and SC-series mounts (LB/FA/FB/CA/CB) carry over directly. Because this is an -S model, note the sensor family changes: legacy CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG on the SAU. A plain cylinder drifts without live air—the 21 mm cushions only decelerate—so fit an external rod lock or pilot-operated check valve for held loads. At 440 mm, prevent rod bending by guiding the load externally. If you need less force, a 40mm bore gives 628 N push; if you need more, a 63mm bore yields 1559 N at 0.5 MPa.
Replacement checklist
- ✓ Same bore / stroke → SAU50X440S
- ✓ 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 SU50X440S FAQ
Yes, the AirTAC SU50X440S is discontinued. The direct replacement is the SAU50X440S. It shares the same 50mm bore, 440mm stroke, 1/4" port, output force, and SC-series mounting, so it drops right into the same application.
At 0.5 MPa it pushes 982 N and pulls 825 N; at 0.7 MPa it pushes 1374 N, with a theoretical max of 200 kgf at 1.0 MPa. Because this is an -S model, it used legacy CS1-B/DS1-B sensors; the SAU50X440S replacement requires current CMSG/DMSG/EMSG switches.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X440S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X440S replacement — usually within 7-8 hours.