This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X75, 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 SU40X75
The AirTAC SU32~50 Standard Cylinder SU40X75 is a double-acting profile-type standard cylinder with a Ø40mm bore and 75mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X75, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X75
- 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 SU40X75
The AirTAC SU40X75 is a discontinued double-acting profile-type cylinder with a 40mm bore and 75mm stroke. Delivering 628N push and 528N pull at 0.5MPa, it features an extruded aluminum barrel and adjustable air cushions at both ends. AirTAC replaced this unit with the SAU40X75, a direct upgrade retaining the exact 1/4" port, M12x1.25 rod thread, and SC-series mounting footprint.
Because this SKU lacks a magnet, it cannot accept position sensors. The SAU replacement modernizes sensing with CMSG/DMSG/EMSG switches, and introduces the SAUF built-in-valve variant the SU line never offered.
Airtac SU32~50 Standard Cylinder SU40X75 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X75 |
| Bore size | Ø40 mm |
| Stroke | 75 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 SAU40X75 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 SAU40X75 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 SU40X75
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 SU40X75 Is Used
Package Diverting
Pushes light to medium cartons off a main conveyor line using the 628N push force at 0.5MPa, with the 75mm stroke clearing side guides.
Pallet Stops
Acts as a pneumatic stop pin for low-profile pallets in a handling system, retracting quickly at 30-800mm/s to release workflow.
Replacing the Airtac SU32~50 Standard Cylinder SU40X75 with the SAU40X75
To replace the SU40X75, order the SAU40X75 with the same 40mm bore, 75mm stroke, 1/4" port, and SC-series mounting hardware. Since this non-magnetic SKU cannot hold a sensor, upgrading to an -S magnet on the SAU allows using current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. If your application needs higher force, the 50mm bore provides 982N push at 0.5MPa; for tighter spaces, the 32mm bore yields 402N. A plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for load holding. The SAUF variant integrates a 4M solenoid valve if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU40X75
- ✓ 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 SU40X75 FAQ
Yes, the SU40X75 is end-of-life. The direct replacement is the AirTAC SAU40X75. It shares the identical 40mm bore, 75mm stroke, 628N push force at 0.5MPa, 1/4" port, and SC-series mounting, so it drops straight into the same application.
The 40mm bore features a 1/4" air port and a 16mm piston rod. It delivers 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, 1130N push at 0.9MPa, and a theoretical maximum of 128kgf at 1.0MPa. Operating speed is 30-800mm/s.
Request a Quote for the SAU40X75
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X75 replacement — usually within 7-8 hours.