This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X380, 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 SU40X380
The AirTAC SU32~50 Standard Cylinder SU40X380 is a double-acting profile-type standard cylinder with a Ø40mm bore and 380mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X380, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke380 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X380
- 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 SU40X380
The AirTAC SU40X380 is a discontinued double-acting profile-type cylinder with a 40mm bore and 380mm stroke. Delivering 628N push force at 0.5MPa, it features a compact extruded aluminium barrel shorter than an ISO 15552 unit of the same size. AirTAC replaced this EOL model with the SAU40X380, a direct upgrade retaining the exact 1/4" port, M12x1.25 rod thread, and SC-series mounting.
Because this SKU lacks a magnet, it cannot accept a position sensor. The SAU40X380 upgrade switches to current CMSG/DMSG/EMSG switches if you need sensing, and adds the SAUF built-in-valve option. Note that the 21mm cushions only decelerate the piston; they do not hold the load on air loss.
Airtac SU32~50 Standard Cylinder SU40X380 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X380 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X380 |
| Bore size | Ø40 mm |
| Stroke | 380 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 SAU40X380 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 SAU40X380 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 SU40X380
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×380 | 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 SU40X380 Is Used
Package Diversion
Pushes medium-weight cartons at 30-800 mm/s on packaging lines, utilizing the 628N push force to actuate routing gates reliably over a 380mm travel.
Pallet Positioning
Indexes empty pallets into a loading zone; the 32kg safe vertical lift capacity handles light pallet components while external guides absorb side loads.
Gate Actuation
Drives safety guards and access doors on automated machinery, benefiting from the compact profile body and adjustable 21mm cushions to soften end-of-stroke impacts.
Replacing the Airtac SU32~50 Standard Cylinder SU40X380 with the SAU40X380
To replace the discontinued SU40X380, order the SAU40X380 with the same 40mm bore, 380mm stroke, 1/4" port, and SC-series mounting. Confirm your thread option (PT, G, or NPT). Since this specific SKU has no magnet, it cannot support a sensor; if sensing is required, order the SAU replacement with a magnet (-S) and upgrade to CMSG/DMSG/EMSG switches. For sizing alternatives, a 32mm bore offers 402N push at 0.5MPa, while a 50mm bore provides 982N. The 380mm stroke demands external guide rails to prevent rod bending under side loads. A plain cylinder drifts without live air, so use an external rod lock or pilot-operated check valve for load holding. For faster cycling, explore the SAUF variant with its integrated 4M solenoid valve.
Replacement checklist
- ✓ Same bore / stroke → SAU40X380
- ✓ 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 SU40X380 FAQ
Yes, the SU40X380 is discontinued. The direct replacement is the AirTAC SAU40X380. It matches the 40mm bore, 380mm stroke, 628N force, 1/4" port, and SC-series mounting, so no mechanical changes are needed.
At 0.5MPa it provides 628N push and 528N pull force, 879N push at 0.7MPa, 1130N at 0.9MPa, and a theoretical max of 128kgf at 1.0MPa. This specific SKU lacks a magnet, so it cannot take a sensor. The SAU replacement supports CMSG/DMSG/EMSG switches if sensing is required.
Request a Quote for the SAU40X380
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X380 replacement — usually within 7-8 hours.