This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X75S, 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 SU40X75S
The AirTAC Airtac SU32~50 Standard Cylinder SU40X75S 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 SAU40X75S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X75S
- 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 SU40X75S
The AirTAC SU40X75S is a discontinued double-acting profile-type cylinder with a 40mm bore and 75mm stroke, delivering 628N push and 528N pull at 0.5MPa. Its extruded aluminum body is more compact than an ISO 15552 unit of the same bore. The direct replacement is the SAU40X75S, matching the 1/4" port, M12x1.25 rod thread, and SC-series mounting.
This -S SKU includes a piston magnet for legacy CS1-B/DS1-B switches; the SAU replacement upgrades to CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF valve-integrated variant the SU lacked.
Airtac SU32~50 Standard Cylinder SU40X75S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X75S |
| 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 SAU40X75S 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 SAU40X75S 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 SU40X75S
| 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 SU40X75S Is Used
Component Clamping
Secures mid-weight machined parts during secondary milling, utilizing the 628N push force for rigid holding.
Package Diverting
Actuates 75mm stroke diverting arms on packaging lines to route boxes without requiring a tall footprint.
Pallet Stops
Deploys 75mm stop gates at conveyor transfer points to halt pallets for robotic pickup operations.
Replacing the Airtac SU32~50 Standard Cylinder SU40X75S with the SAU40X75S
To replace this discontinued SU40X75S, order the SAU40X75S, ensuring the 40mm bore, 75mm stroke, 1/4" port, and SC-series mounting match your fixture. Because this is a -S model, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG on the SAU. For higher loads, the neighboring 50mm bore offers 982N push at 0.5MPa. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock for held loads. At 75mm stroke, rod bending is minimal, but always guide the load. The SAUF variant adds a built-in 4M valve if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU40X75S
- ✓ 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 SU40X75S FAQ
Yes, the SU40X75S is discontinued. The direct replacement is the AirTAC SAU40X75S. It shares the identical 40mm bore, 75mm stroke, 628N push force at 0.5MPa, 1/4" port, and SC-series mounting accessories, fitting the same application.
At 0.5MPa it provides 628N push and 528N pull; at 0.7MPa push is 879N, and the theoretical max is 128kgf at 1.0MPa. This -S model uses legacy CS1-B/DS1-B switches; the SAU40X75S replacement requires current CMSG/DMSG/EMSG sensors.
Request a Quote for the SAU40X75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X75S replacement — usually within 7-8 hours.