This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X165S, 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 SU40X165S
The AirTAC SU32~50 Standard Cylinder SU40X165S is a double-acting profile-type standard cylinder with a Ø40mm bore and 165mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X165S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke165 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X165S
- 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 SU40X165S
The AirTAC SU40X165S is a discontinued double-acting profile cylinder with a 40mm bore and 165mm stroke. This end-of-life unit delivers 628N push and 528N pull at 0.5MPa, utilizing a 1/4" port and M12x1.25 rod thread. AirTAC replaced it with the SAU40X165S, a direct alternative retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
Because the 165mm stroke is non-standard, expect a longer lead time or a custom build. The -S magnet on this legacy model paired with CS1-B/DS1-B switches; upgrading to the SAU requires switching to CMSG/DMSG/EMSG sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve that the SU line lacked.
Airtac SU32~50 Standard Cylinder SU40X165S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X165S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X165S |
| Bore size | Ø40 mm |
| Stroke | 165 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 SAU40X165S 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 SAU40X165S 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 SU40X165S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×165 | 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 SU40X165S Is Used
Package Diverting
Actuates diverting arms on packaging lines where the 528N pull force at 0.5MPa easily redirects cartons up to 32kg.
Pallet Stop Gate
Controls pallet flow on roller conveyors, using the adjustable 21mm cushions to decelerate loads smoothly at stroke end.
Clamp Positioning
Moves medium-duty workholding clamps into place on machining fixtures, benefiting from the compact profile body.
Replacing the Airtac SU32~50 Standard Cylinder SU40X165S with the SAU40X165S
To replace this SU40X165S, order the SAU40X165S and confirm the 40mm bore, 165mm stroke, 1/4" port, and M12x1.25 rod thread. Because this unit has the -S magnet, note that your legacy CS1-B/DS1-B switches must be replaced by CMSG/DMSG/EMSG sensors on the new SAU. If you need self-switching capability, consider the SAUF variant with its integrated 4M valve. For sizing both ways, a 32mm bore offers 402N push at 0.5MPa, while a 50mm bore provides 982N. A plain cylinder drifts without live air, so for load holding use an external rod lock or pilot-operated check valve. Since the 165mm stroke exceeds standard increments, ensure your guide mechanism handles any side-load to prevent rod bending.
Replacement checklist
- ✓ Same bore / stroke → SAU40X165S
- ✓ 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 SU40X165S FAQ
Yes, the SU40X165S is discontinued. The direct replacement is the AirTAC SAU40X165S. It shares the same 40mm bore, 165mm stroke, 628N push force at 0.5MPa, 1/4" port, and SC-series mounting accessories.
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 on this SU works with legacy CS1-B/DS1-B switches; the SAU replacement requires current CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X165S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X165S replacement — usually within 7-8 hours.