This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X65N, 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 SU40X65N
The AirTAC Airtac SU32~50 Standard Cylinder SU40X65N is a double-acting profile-type standard cylinder with a Ø40mm bore and 65mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X65N, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke65 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X65N
- 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 SU40X65N
The AirTAC SU40X65N is a discontinued double-acting profile-type cylinder with a 40mm bore and 65mm stroke. Delivering 628 N push force at 0.5 MPa, it features an extruded aluminum barrel and 1/4" port. AirTAC replaced this EOL unit with the SAU40X65N, a direct alternative retaining the exact bore, stroke, output force, and SC-series mounting.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors and a SAUF built-in valve option the SU lacked. This NBR-sealed SKU (-N) operates from -20 to 70 C. Since it lacks a magnet, it cannot take a sensor.
Airtac SU32~50 Standard Cylinder SU40X65N Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X65N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X65N |
| Bore size | Ø40 mm |
| Stroke | 65 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 SAU40X65N 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 SAU40X65N 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 SU40X65N
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×65 | 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 SU40X65N Is Used
Small Part Clamping
Ideal for holding light machined components during drilling, providing steady 628 N force at 0.5 MPa without deforming the part.
Package Diverting
Deploys a 65mm stroke to push lightweight cartons off a main conveyor belt into secondary packing lanes smoothly.
Stopper Gate Actuation
Raises and lowers pneumatic stop gates on roller conveyors, where the compact profile saves space and NBR seals handle standard shop temperatures.
Replacing the Airtac SU32~50 Standard Cylinder SU40X65N with the SAU40X65N
To replace the SU40X65N, order the SAU40X65N, confirming the 1/4" port, M12x1.25 rod thread, and SC-series mounts. Because this SKU has no magnet (-S), it cannot accept a sensor; if sensing is needed, specify an SAU with -S and use CMSG/DMSG/EMSG switches. For higher loads, the 50mm bore offers 982 N push at 0.5 MPa; for smaller setups, the 32mm provides 402 N. Note that a plain cylinder drifts on air loss—the 21mm cushions only decelerate, so use a pilot-operated check valve for load holding. If your stroke exceeds 300mm, add external guides to prevent rod bending.
Replacement checklist
- ✓ Same bore / stroke → SAU40X65N
- ✓ 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 SU40X65N FAQ
Yes, the SU40X65N is discontinued. The direct replacement is the AirTAC SAU40X65N. It shares the same 40mm bore, 65mm stroke, 1/4" port, and SC-series mounting accessories, so it fits the same application directly.
It has a 1/4" air port. Force outputs are: 628 N push and 528 N pull at 0.5 MPa; 879 N push at 0.7 MPa; 1130 N push at 0.9 MPa; with a theoretical max of 128 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Request a Quote for the SAU40X65N
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X65N replacement — usually within 7-8 hours.