This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X75STC, 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 SU40X75STC
The AirTAC Airtac SU32~50 Standard Cylinder SU40X75STC 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 SAU40X75STC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X75STC
- 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 SU40X75STC
The AirTAC SU40X75STC 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 inch port. AirTAC replaced this unit with the SAU40X75STC, a direct upgrade retaining the exact bore, stroke, output force, port size and SC-series TC mounting interface.
The SAU replacement introduces current CMSG/DMSG/EMSG sensors, superseding the legacy CS1-B/DS1-B switches used on this SU -S model. It also adds an optional SAUF variant with a built-in 4M solenoid valve that the SU line lacked.
Airtac SU32~50 Standard Cylinder SU40X75STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X75STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X75STC |
| 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 SAU40X75STC 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 SAU40X75STC 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 SU40X75STC
| 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 SU40X75STC Is Used
Small Parts Clamping
Secures lightweight machined components during secondary milling operations with a safe 377 N working force.
Package Diverting
Actuates a short 75 mm stroke diverter arm to route small cartons on a packaging line at 30-800 mm/s.
Product Ejection
Pushes sorted goods off a roller table using 628 N of thrust at 0.5 MPa into downstream handling bins.
Replacing the Airtac SU32~50 Standard Cylinder SU40X75STC with the SAU40X75STC
To replace the SU40X75STC, order the SAU40X75STC. Confirm the 40 mm bore, 75 mm stroke, 1/4 inch port (default PT thread) and M12x1.25 rod thread. The TC mounting accessory is an SC-series part that transfers directly. Because this SKU includes a magnet (-S), note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. For higher loads, neighbouring bores (32 mm or 50 mm) offer 402 N or 982 N push at 0.5 MPa. A plain cylinder drifts without live air; the 21 mm adjustable cushion only decelerates the piston, so use an external rod lock or pilot-operated check valve for held loads. The SAUF valve-integrated option can simplify actuation if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU40X75STC
- ✓ 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 SU40X75STC FAQ
Yes, the SU40X75STC is discontinued. The direct replacement is the AirTAC SAU40X75STC. It shares the identical 40 mm bore, 75 mm stroke, 628 N output force, 1/4 inch port and SC-series TC mounting, so it fits the same application directly.
The 40 mm bore generates 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a theoretical max of 128 kgf at 1.0 MPa. Because this is an -S model with a piston magnet, it originally used CS1-B/DS1-B switches; the SAU replacement requires the newer CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X75STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X75STC replacement — usually within 7-8 hours.