This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X65STC, 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 SU40X65STC
The AirTAC SU32~50 Standard Cylinder SU40X65STC 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 SAU40X65STC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke65 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X65STC
- 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 SU40X65STC
The AirTAC SU40X65STC is a discontinued double-acting profile-type cylinder with a 40mm bore and 65mm stroke. As a non-standard stroke, it delivers 628N push force at 0.5MPa via a 1/4" port. AirTAC replaced this unit with the SAU40X65STC, a direct replacement retaining the exact bore, stroke, output force, and SC-series TC mounting interface.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors to replace the legacy CS1-B/DS1-B switches used on this -S model, and adds the SAUF built-in valve option the SU line lacked. The extruded aluminum body remains shorter than an ISO 15552 cylinder of the same bore.
Airtac SU32~50 Standard Cylinder SU40X65STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X65STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X65STC |
| 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 SAU40X65STC 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 SAU40X65STC 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 SU40X65STC
| 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 SU40X65STC Is Used
Gripper Actuation
Drives small pneumatic grippers handling 32kg workloads in automated assembly lines, utilizing the 628N push force for secure part manipulation.
Package Diversion
Powers short-stroke diverter arms on packaging conveyors, where the 65mm non-standard stroke provides precise routing of lightweight goods.
Pallet Stops
Acts as a height-controlled stop block in low-profile pallet handling systems, benefiting from the compact profile body and TC mounting.
Replacing the Airtac SU32~50 Standard Cylinder SU40X65STC with the SAU40X65STC
To replace the SU40X65STC, order the SAU40X65STC direct equivalent, confirming the 40mm bore, 65mm non-standard stroke, 1/4" port, M12x1.25 rod thread, and TC mounting. Because this is a non-standard 65mm stroke, verify your existing spacing. If you need more force, the neighboring 50mm bore yields 982N push at 0.5MPa; if less is required, the 32mm bore provides 402N. If your application requires holding a load without live air, note that the adjustable cushion only decelerates the piston and does not lock it—you must add an external rod lock or pilot-operated check valve. Finally, if you use the -S magnet, you must upgrade to CMSG/DMSG/EMSG switches, as the old CS1-B/DS1-B sensors are incompatible with the SAU.
Replacement checklist
- ✓ Same bore / stroke → SAU40X65STC
- ✓ 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 SU40X65STC FAQ
Yes, the SU40X65STC is discontinued. The direct replacement is the SAU40X65STC. It shares the same 40mm bore, 65mm stroke, 628N force, 1/4" port, and SC-series TC mounting, so it fits your existing application directly.
The 40mm bore provides 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, and a theoretical max of 128kgf at 1.0MPa. Because this SU model includes a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU40X65STC replacement requires the newer CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X65STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X65STC replacement — usually within 7-8 hours.