This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X75SCA, 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 SU40X75SCA
The AirTAC Airtac SU32~50 Standard Cylinder SU40X75SCA 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 SAU40X75SCA, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X75SCA
- 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 SU40X75SCA
The AirTAC SU40X75SCA is a discontinued double-acting profile-type cylinder with a 40 mm bore and 75 mm stroke. It delivers 628 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this EOL unit with the SAU40X75SCA, a direct alternative retaining the exact bore, stroke, output, and SC-series CA mounting interface.
When upgrading, note the SAU body uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches found on this -S SKU. The new SAUF line also offers a built-in valve option the SU lacked. The extruded aluminum profile is more compact than a same-bore ISO 15552 cylinder.
Airtac SU32~50 Standard Cylinder SU40X75SCA Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X75SCA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X75SCA |
| 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 SAU40X75SCA 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 SAU40X75SCA 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 SU40X75SCA
| 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 SU40X75SCA Is Used
Small Part Ejection
Uses the 628 N push force at 0.5 MPa to reliably push machined components out of a fixture during automated machining cycles.
Carton Flap Folding
The 75 mm stroke actuates folding arms on a packaging line to tuck flaps before sealing, fitting neatly within compact machine frames.
Diverting Arm Mechanism
Mounts via the CA accessory to swing a diverter arm, routing small product flows between parallel conveyor tracks at high speed.
Replacing the Airtac SU32~50 Standard Cylinder SU40X75SCA with the SAU40X75SCA
To replace this SU40X75SCA, order the SAU40X75SCA. Verify the 1/4" port, M12x1.25 rod thread, and CA mounting. Because this SKU has a magnet (-S), you must switch from CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors. If sizing alternatives, a 32 mm bore yields 402 N push at 0.5 MPa, while a 50 mm bore yields 982 N. This 75 mm stroke is short, so side-load risks are minimal, but always guide external loads. A plain cylinder drifts without live air; the 21 mm cushion only decelerates. For load holding on air loss, install an external rod lock or pilot-operated check valve. If you need integrated control, explore the SAUF variant with its built-in 4M solenoid valve.
Replacement checklist
- ✓ Same bore / stroke → SAU40X75SCA
- ✓ 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 SU40X75SCA FAQ
Yes, the SU40X75SCA is discontinued. The direct replacement is the AirTAC SAU40X75SCA. It matches the 40 mm bore, 75 mm stroke, 628 N force, 1/4" port, and CA mounting, so no mechanical redesign is needed.
At 0.5 MPa it pushes 628 N and pulls 528 N; at 0.7 MPa it pushes 879 N, with a theoretical max of 128 kgf at 1.0 MPa. Because this is an -S magnet model, the original CS1-B/DS1-B switches are obsolete; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X75SCA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X75SCA replacement — usually within 7-8 hours.