This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X1120, 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 SU40X1120
The AirTAC SU32~50 Standard Cylinder SU40X1120 is a double-acting profile-type standard cylinder with a Ø40mm bore and 1120mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X1120, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke1120 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X1120
- 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 SU40X1120
The AirTAC SU40X1120 is a discontinued double-acting profile-type cylinder with a 40mm bore and 1120mm stroke. It delivers 628N push force at 0.5MPa via a 1/4" port. AirTAC replaced it with the SAU40X1120 direct equivalent, retaining the exact bore, stroke, output force, and SC-series mounting.
This 1120mm stroke exceeds the 1200mm standard maximum, classifying it as a nonstandard stroke. The extruded aluminum profile is more compact than an ISO 15552 unit. The SAU upgrade introduces CMSG/DMSG/EMSG sensors and a SAUF built-in-valve option the SU lacked. This no-magnet SKU cannot take a switch.
Airtac SU32~50 Standard Cylinder SU40X1120 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X1120 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X1120 |
| Bore size | Ø40 mm |
| Stroke | 1120 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 SAU40X1120 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 SAU40X1120 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 SU40X1120
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×1120 | 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 SU40X1120 Is Used
Long-Stroke Material Push
Transfers products across wide conveyor gaps using the 1120mm stroke, relying on the 628N push force at 0.5MPa to clear heavy items without stalling.
Extended Transfer Arms
Drives long-lever transfer mechanisms between assembly stations, requiring external guides to prevent rod bending over the 1120mm extension.
Replacing the Airtac SU32~50 Standard Cylinder SU40X1120 with the SAU40X1120
To replace this discontinued SU40X1120, order the SAU40X1120. Verify your 1/4" port, M12x1.25 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) are unchanged. Because this 1120mm unit is a nonstandard stroke, ensure external guides prevent rod bending under side loads. A plain cylinder drifts without live air; use an external rod lock or pilot-operated check valve for load holding. If sizing both ways, a 32mm bore offers 402N push at 0.5MPa, while a 50mm bore provides 982N. The SAUF variant integrates a 4M solenoid valve if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU40X1120
- ✓ 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 SU40X1120 FAQ
Yes, the SU40X1120 is discontinued. The direct replacement is the SAU40X1120. It shares the identical 40mm bore, 1120mm stroke, 628N force, 1/4" port, and SC-series mounting accessories. You simply order the SAU equivalent.
At 0.5MPa it provides 628N push and 528N pull force, 879N push at 0.7MPa, and a theoretical max of 128kgf at 1.0MPa. This specific SKU lacks a magnet, so it cannot accept a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches for its -S versions.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X1120
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X1120 replacement — usually within 7-8 hours.