This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X1230, 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 SU40X1230
The AirTAC SU32~50 Standard Cylinder SU40X1230 is a double-acting profile-type standard cylinder with a Ø40mm bore and 1230mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X1230, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke1230 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X1230
- 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 SU40X1230
The AirTAC SU40X1230 is a discontinued double-acting profile-type cylinder with a 40mm bore and 1230mm stroke. Because this 1230mm stroke exceeds the 1200mm standard maximum for this bore, it is a non-standard, made-to-order length. Generating 628 N push at 0.5 MPa, it features an extruded aluminum barrel that is more compact than an ISO 15552 cylinder of the same size. The direct replacement is the SAU40X1230, matching the bore, stroke, 1/4" port, and SC-series mounting.
This SKU lacks a magnet, so it cannot accept a magnetic sensor. If sensing is needed on the SAU replacement, you must add the -S option, which uses current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve, a feature the SU line never had.
Airtac SU32~50 Standard Cylinder SU40X1230 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X1230 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X1230 |
| Bore size | Ø40 mm |
| Stroke | 1230 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 SAU40X1230 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 SAU40X1230 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 SU40X1230
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×1230 | 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 SU40X1230 Is Used
Long-Reach Diversion
Pushes packages across a wide conveyor belt sorting station using the 1230mm stroke, relying on external guides to prevent rod bending during the extended travel.
High-Bay Extraction
Extracts totes from deep shelving racks where the 628 N push force at 0.5 MPa easily handles standard container weights within a 32 kg vertical lift margin.
Material Transfer
Transfers workpieces between distant machine stations, taking advantage of the compact profile body to save space in tight automated production cells.
Replacing the Airtac SU32~50 Standard Cylinder SU40X1230 with the SAU40X1230
To replace this discontinued SU40X1230, order the SAU40X1230. Confirm the 40mm bore, 1230mm non-standard stroke, 1/4" port (default PT), and M12x1.25 rod thread. Because this stroke exceeds the 1200mm standard, expect made-to-order lead times. This non-magnetic SKU cannot take a sensor; if you need position detection on the SAU, add the -S option and migrate to CMSG/DMSG/EMSG switches. A 1230mm stroke creates high rod-bending risk under side loads, so use external guides to prevent seal damage. For sizing alternatives, a 32mm bore yields 402 N push at 0.5 MPa, while a 50mm bore provides 982 N. Note that a plain cylinder drifts on air loss; the 21mm cushions only decelerate near stroke ends. For load holding, install an external rod lock or pilot-operated check valve. The SAUF built-in-valve option can simplify piping if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU40X1230
- ✓ 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 SU40X1230 FAQ
Yes, the AirTAC SU40X1230 is discontinued and end-of-life. The direct replacement is the SAU40X1230. It offers identical bore, stroke, output force, 1/4" port, and SC-series mounting compatibility, so it fits the same application directly.
This 40mm bore cylinder delivers 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a theoretical max of 128 kgf at 1.0 MPa. This specific SKU has no magnet and cannot accept a sensor. The SAU replacement with the -S option supports CMSG/DMSG/EMSG switches.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X1230
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X1230 replacement — usually within 7-8 hours.