This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X115SN, 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 SU40X115SN
The AirTAC SU32~50 Standard Cylinder SU40X115SN is a double-acting profile-type standard cylinder with a Ø40mm bore and 115mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X115SN, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke115 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X115SN
- 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 SU40X115SN
The AirTAC SU40X115SN is a discontinued double-acting profile-type cylinder with a 40mm bore and 115mm stroke. It delivers 628N push and 528N pull at 0.5MPa via a 1/4" port. AirTAC replaced it with the SAU40X115SN direct replacement, matching the exact body, force, and SC-series mounting.
The compact extruded aluminum body is shorter than an ISO 15552 equivalent. Its -S magnet worked with legacy CS1-B/DS1-B switches; the SAU upgrade uses modern CMSG/DMSG/EMSG sensors and adds an optional SAUF built-in valve.
Airtac SU32~50 Standard Cylinder SU40X115SN Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X115SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X115SN |
| Bore size | Ø40 mm |
| Stroke | 115 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 SAU40X115SN 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 SAU40X115SN 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 SU40X115SN
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×115 | 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 SU40X115SN Is Used
Package Diverting
Actuates routing gates on packaging lines, providing 528N pull force at 0.5MPa to reliably push cartons onto secondary tracks.
Replacing the Airtac SU32~50 Standard Cylinder SU40X115SN with the SAU40X115SN
To replace the SU40X115SN, order the SAU40X115SN direct equivalent, confirming the 40mm bore, 115mm stroke, 1/4" port, and M12x1.25 rod thread. If downsizing from a 50mm bore, note this 40mm unit provides 628N push at 0.5MPa versus 982N. If sizing up from 32mm, thrust increases from 402N. The NBR seal suits standard -20 to +70C environments. For the -S magnet, the legacy CS1-B/DS1-B switches are obsolete; you must migrate to CMSG/DMSG/EMSG sensors on the SAU. A plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock for held loads. The SAUF variant integrates a 4M valve if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU40X115SN
- ✓ 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 SU40X115SN FAQ
Yes, the AirTAC SU40X115SN is discontinued. The direct replacement is the SAU40X115SN. It shares the identical 40mm bore, 115mm stroke, 628N output force, 1/4" port, and SC-series mounting accessories, fitting the same application directly.
The 40mm bore generates 628N push and 528N pull at 0.5MPa, 879N at 0.7MPa, and a 128kgf max at 1.0MPa. The -S magnet on this legacy unit required CS1-B/DS1-B switches; the SAU replacement upgrades to CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X115SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X115SN replacement — usually within 7-8 hours.