This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X15, 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 SU40X15
The AirTAC Airtac SU32~50 Standard Cylinder SU40X15 is a double-acting profile-type standard cylinder with a Ø40mm bore and 15mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X15, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke15 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X15
- 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 SU40X15
The AirTAC SU40X15 is a discontinued double-acting profile-type cylinder with a 40mm bore and 15mm stroke, delivering 628N push force at 0.5MPa. AirTAC replaced this legacy unit with the SAU40X15, a direct alternative retaining the exact 1/4" port, M12x1.25 rod thread, and SC-series mounting compatibility.
Because this SKU lacks a magnet, it cannot accept a sensor; the SAU upgrade also adds a built-in valve option (SAUF) the SU line never had.
Airtac SU32~50 Standard Cylinder SU40X15 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X15 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X15 |
| Bore size | Ø40 mm |
| Stroke | 15 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 SAU40X15 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 SAU40X15 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 SU40X15
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×15 | 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 SU40X15 Is Used
Package Diverting
Provides a compact actuation point on packaging lines to push lightweight cartons off a main belt, leveraging the shorter profile body to fit tight transfer spaces.
Small Part Ejection
Delivers rapid ejection of molded or stamped parts from a press area, utilizing the 628N thrust at 0.5MPa to clear small components quickly within a 30-800mm/s speed range.
Replacing the Airtac SU32~50 Standard Cylinder SU40X15 with the SAU40X15
To replace the SU40X15, order the SAU40X15 direct equivalent, verifying your 1/4" port thread (PT/G/NPT) and SC-series mounting hardware. Since this specific SKU has no magnet (-S), it cannot support sensing; if you require position detection on the new unit, you must specify an SAU40X15S and migrate from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG family. If you need higher force, the neighboring 50mm bore provides 982N push at 0.5MPa, while dropping to 32mm yields 402N. Note that a standard cylinder drifts without live air—the cushion only decelerates—so use an external rod lock or pilot-operated check valve for secure load holding.
Replacement checklist
- ✓ Same bore / stroke → SAU40X15
- ✓ 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 SU40X15 FAQ
Yes, the AirTAC SU40X15 is discontinued. The direct replacement is the SAU40X15, which shares the identical 40mm bore, 15mm stroke, 628N force, 1/4" port, and SC-series mounting.
At 0.5MPa it provides 628N push and 528N pull, increasing to 879N at 0.7MPa and a theoretical max of 128kgf at 1.0MPa. This specific SKU lacks a magnet and cannot take a sensor; if sensing is needed, the SAU replacement requires an -S suffix and uses CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Request a Quote for the SAU40X15
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X15 replacement — usually within 7-8 hours.