This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X15S, 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 SU40X15S
The AirTAC SU32~50 Standard Cylinder SU40X15S 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 SAU40X15S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke15 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X15S
- 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 SU40X15S
The AirTAC SU40X15S is a discontinued double-acting profile-type cylinder with a 40mm bore and 15mm stroke. It delivers 628N push and 528N pull at 0.5MPa, operating at 30-800mm/s via a 1/4" port. AirTAC replaced this legacy unit with the SAU40X15S, a direct upgrade retaining the exact bore, stroke, output force, and SC-series mounting footprint.
This compact extruded-aluminium body is shorter than a standard ISO 15552 cylinder of the same bore. Because this SKU includes a magnet (-S), it supported legacy CS1-B/DS1-B switches; the SAU successor transitions to current CMSG/DMSG/EMSG sensors and introduces a SAUF valve-integrated option the SU line lacked.
Airtac SU32~50 Standard Cylinder SU40X15S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X15S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X15S |
| 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 SAU40X15S 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 SAU40X15S 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 SU40X15S
| 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 SU40X15S Is Used
Short-Stroke Clamping
Ideal for holding lightweight workpieces in machining fixtures, using the 628N push force across a rapid 15mm travel distance.
Package Diverting
Provides fast actuation for sorting small to medium packages on a line, where the compact profile saves valuable machine space.
Ejector Mechanism
Delivers a quick 15mm ejection punch for small parts in automated assembly, benefiting from the 32kg vertical lift capability.
Replacing the Airtac SU32~50 Standard Cylinder SU40X15S with the SAU40X15S
To replace this discontinued SU40X15S, order the SAU40X15S. Confirm the 1/4" port, M12x1.25 rod thread, and your SC-series mounting (LB/FA/FB/CA/CB). The -S magnet means you must upgrade sensors: the old CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG on the SAU. If sizing alternatives, a 32mm bore yields 402N push at 0.5MPa while a 50mm bore yields 982N. A plain cylinder drifts on air loss—the 21mm cushions only decelerate, so use an external rod lock or pilot-operated check valve for held loads. The new SAUF variant offers a built-in 4M solenoid valve if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU40X15S
- ✓ 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 SU40X15S FAQ
Yes, the SU40X15S is discontinued. The direct replacement is the AirTAC SAU40X15S. It shares the same 40mm bore, 15mm stroke, 1/4" port, and SC-series mounting accessories, fitting the same application directly.
It provides 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, and a theoretical max of 128kgf at 1.0MPa. The -S magnet works with legacy CS1-B/DS1-B switches; upgrading to the SAU requires switching to CMSG/DMSG/EMSG sensors.
Request a Quote for the SAU40X15S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X15S replacement — usually within 7-8 hours.