This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X1150SN, 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 SU40X1150SN
The AirTAC SU32~50 Standard Cylinder SU40X1150SN is a double-acting profile-type standard cylinder with a Ø40mm bore and 1150mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X1150SN, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke1150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X1150SN
- 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 SU40X1150SN
The AirTAC SU40X1150SN is a discontinued double-acting profile-type cylinder with a 40mm bore and 1150mm stroke. Because 1150mm exceeds the 1200mm standard maximum for this bore, it is built as a nonstandard stroke. The direct replacement is the SAU40X1150SN, matching the 1/4" port, M12x1.25 rod thread, and 21mm cushions.
This legacy unit features an NBR seal (-N) for -20 to +70C operation and a piston magnet (-S) for position sensing. Upgrading to the SAU40X1150SN preserves the compact extruded body and SC-series mounting but moves sensors to the modern CMSG/DMSG/EMSG family from the old CS1-B/DS1-B switches. The SAU line also adds a SAUF built-in 4M valve option the SU lacked.
Airtac SU32~50 Standard Cylinder SU40X1150SN Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X1150SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X1150SN |
| Bore size | Ø40 mm |
| Stroke | 1150 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 SAU40X1150SN 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 SAU40X1150SN 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 SU40X1150SN
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×1150 | 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 SU40X1150SN Is Used
Long-Reach Diverting
Pushes packages across a wide conveyor belt using the 1150mm stroke, relying on the 628N push force at 0.5MPa for stable lateral diversion.
High-Bay Extraction
Extracts totes from deep shelving racks where the extended reach is required, benefiting from the NBR seals in standard warehouse climates.
Replacing the Airtac SU32~50 Standard Cylinder SU40X1150SN with the SAU40X1150SN
To replace this discontinued SU40X1150SN, order the SAU40X1150SN direct equivalent, verifying the 1/4" port, M12x1.25 thread, and SC-series mounting accessories. If sizing alternatives, the neighbouring 32mm bore offers 402N push at 0.5MPa, while the 50mm bore provides 982N. For this 1150mm nonstandard stroke, external guides are strongly recommended to prevent rod bending under side loads. Note that a plain cylinder drifts on air loss; the cushions only decelerate, so add an external rod lock or pilot-operated check valve for held loads. If you used the -S magnet, you must switch to CMSG/DMSG/EMSG sensors, and the SAUF variant offers a self-switching valve if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU40X1150SN
- ✓ 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 SU40X1150SN FAQ
Yes, the SU40X1150SN is discontinued. The direct replacement is the SAU40X1150SN, which shares the same 40mm bore, 1150mm stroke, 1/4" port, force output, and SC-series mounting. You simply order the SAU equivalent.
At 0.5MPa it pushes 628N and pulls 528N; at 0.7MPa it pushes 879N, 1130N at 0.9MPa, with a 128kgf max at 1.0MPa. Because this SKU has a magnet (-S), note the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X1150SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X1150SN replacement — usually within 7-8 hours.