This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X380S, 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 SU40X380S
The AirTAC SU32~50 Standard Cylinder SU40X380S 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 SAU40X380S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke380 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X380S
- 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 SU40X380S
The AirTAC SU40X380S is a discontinued double-acting profile-type cylinder with a 40mm bore and 380mm stroke. Delivering 628N push force at 0.5MPa, its direct replacement is the SAU40X380S, matching the 1/4" port, M12x1.25 rod thread, and SC-series mounts.
The SAU upgrade retains the compact extruded aluminum body but shifts magnetic sensing from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors, and introduces the SAUF built-in-valve variant.
Airtac SU32~50 Standard Cylinder SU40X380S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X380S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X380S |
| 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 SAU40X380S 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 SAU40X380S 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 SU40X380S
| 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 SU40X380S Is Used
Package Diverting
Pushes medium-weight cartons off a sorting line using the 628N push force at 0.5MPa, with the 380mm stroke clearing the adjacent lane.
Pallet Positioning
Shifts empty pallets into a wrapping station, taking advantage of the compact profile body to fit tight conveyor frames.
Component Ejection
Ejects machined parts from a fixture, relying on the 21mm adjustable air cushions to decelerate the rod smoothly at stroke end.
Replacing the Airtac SU32~50 Standard Cylinder SU40X380S with the SAU40X380S
To replace this SU40X380S with the SAU40X380S, verify the 40mm bore, 380mm stroke, 1/4" port (PT/G/NPT), and SC-series mounting hardware. Because this SKU includes the -S magnet, note the mandatory sensor family change: legacy CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG on the SAU. If your application needs higher force, the neighboring 50mm bore yields 982N push at 0.5MPa; if lower force is acceptable, the 32mm bore provides 402N. For the 380mm stroke, use external guides to prevent rod bending and side-load wear. The air cushion only decelerates the piston; it does not hold load on air loss, so add an external rod lock or pilot-operated check valve for suspended loads. The SAUF valve-integrated option can simplify cycling if you lack a separate solenoid.
Replacement checklist
- ✓ Same bore / stroke → SAU40X380S
- ✓ 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 SU40X380S FAQ
Yes, the SU40X380S is discontinued. The direct replacement is the AirTAC SAU40X380S. It shares the same 40mm bore, 380mm stroke, 628N push force at 0.5MPa, 1/4" port, and SC-series mounting, so it fits the same application. You simply order the SAU equivalent.
The 40mm bore generates 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, and a theoretical maximum of 128kgf at 1.0MPa. Because this is the -S magnet version, it originally used CS1-B/DS1-B switches; the SAU40X380S replacement requires the newer CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X380S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X380S replacement — usually within 7-8 hours.