This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X212S, 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 SU40X212S
The AirTAC SU32~50 Standard Cylinder SU40X212S is a double-acting profile-type standard cylinder with a Ø40mm bore and 212mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X212S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke212 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X212S
- 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 SU40X212S
The AirTAC SU40X212S is a discontinued double-acting profile-type cylinder with a 40mm bore and 212mm stroke. As an end-of-line product, it is directly replaced by the SAU40X212S. This direct upgrade matches the original 628N push force at 0.5MPa, 1/4" port, M12x1.25 rod thread, and SC-series mounting accessories. The extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same bore.
Because this is a -S magnet model, it originally used legacy CS1-B/DS1-B switches; the SAU replacement requires current CMSG/DMSG/EMSG sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve that the SU line lacked. Note that 212mm is a nonstandard stroke.
Airtac SU32~50 Standard Cylinder SU40X212S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X212S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X212S |
| Bore size | Ø40 mm |
| Stroke | 212 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 SAU40X212S 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 SAU40X212S 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 SU40X212S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×212 | 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 SU40X212S Is Used
Package Diversion
Pushes lightweight cartons off a sorting line using the 628N push force at 0.5MPa, fitting neatly into existing SC-series bracket clearances.
Stopper Gate
Raises and lowers a pneumatic stop gate for pallet accumulation, taking advantage of the compact profile body and 212mm extension.
Replacing the Airtac SU32~50 Standard Cylinder SU40X212S with the SAU40X212S
To replace this discontinued SU40X212S, order the SAU40X212S with the same 40mm bore, 212mm stroke, 1/4" port, and SC-series mounts. If downsizing, a 32mm bore provides 402N push at 0.5MPa; if upsizing, a 50mm bore yields 982N. The -S suffix means you must change sensors from the old CS1-B/DS1-B to the new CMSG/DMSG/EMSG family. For load holding, a plain cylinder drifts on air loss since the 21mm adjustable cushion only decelerates—add an external rod lock or pilot-operated check valve. At 212mm, side-load risk is moderate, so guide the load to prevent rod bending. Consider the SAUF for integrated valve control.
Replacement checklist
- ✓ Same bore / stroke → SAU40X212S
- ✓ 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 SU40X212S FAQ
Yes, the SU40X212S is discontinued. The direct replacement is the SAU40X212S, which matches the 40mm bore, 212mm stroke, 628N force, 1/4" port, and SC-series mounting. You just swap the cylinder and update the sensors.
The 40mm bore delivers 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, and a theoretical max of 128kgf at 1.0MPa. Because this is a -S model, it uses legacy CS1-B/DS1-B switches; the SAU replacement uses CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X212S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X212S replacement — usually within 7-8 hours.