This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X80S, 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 SU40X80S
The AirTAC Airtac SU32~50 Standard Cylinder SU40X80S is a double-acting profile-type standard cylinder with a Ø40mm bore and 80mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X80S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke80 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X80S
- 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 SU40X80S
The AirTAC SU40X80S is a discontinued double-acting profile-type cylinder with an 80 mm stroke and 40 mm bore. It delivers 628 N push force at 0.5 MPa via a 1/4" port. AirTAC replaced this unit with the SAU40X80S, a direct alternative retaining the exact bore, stroke, output force, port size, and SC-series mounting.
Because this SKU includes a magnet (-S), it originally used legacy CS1-B/DS1-B switches; the SAU replacement transitions to current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve, an option the SU series lacked.
Airtac SU32~50 Standard Cylinder SU40X80S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X80S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X80S |
| Bore size | Ø40 mm |
| Stroke | 80 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 SAU40X80S 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 SAU40X80S 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 SU40X80S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 SU40X80S Is Used
Small Parts Clamping
Ideal for securing 32 kg workpieces in machining fixtures, utilizing the 628 N push force at 0.5 MPa for rigid holding.
Package Diverting
Drives 80 mm diverting arms on packaging lines to push lightweight cartons between belts at speeds up to 800 mm/s.
Bin Gate Actuation
Opens and closes small gravity-fed discharge gates in material hoppers, benefiting from the compact profile body.
Replacing the Airtac SU32~50 Standard Cylinder SU40X80S with the SAU40X80S
To replace this SU40X80S, order the SAU40X80S. Confirm the 1/4" port, M12x1.25 rod thread, PT/G/NPT thread standard, and SC-series mounting (LB/FA/FB/CA/CB) match your jig. If relying on the -S magnet, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. For higher loads, the 50 mm bore yields 982 N push at 0.5 MPa; for tighter spaces, the 32 mm bore gives 402 N. Remember, a plain cylinder drifts without live air—the 21 mm cushions only decelerate. For suspended loads, add an external rod lock or pilot-operated check valve. If faster cycling is needed, explore the SAUF valve-integrated variant.
Replacement checklist
- ✓ Same bore / stroke → SAU40X80S
- ✓ 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 SU40X80S FAQ
Yes, the AirTAC SU40X80S is discontinued. The direct replacement is the SAU40X80S. It shares the identical 40 mm bore, 80 mm stroke, 628 N output force, 1/4" port, and SC-series mounting accessories, so it fits the same application directly.
At 0.5 MPa it provides 628 N push and 528 N pull; 879 N push at 0.7 MPa; 1130 N at 0.9 MPa; and a theoretical max of 128 kgf at 1.0 MPa. Because this is an -S magnet model, it used legacy CS1-B/DS1-B switches; the SAU replacement requires current CMSG/DMSG/EMSG sensors.
Request a Quote for the SAU40X80S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X80S replacement — usually within 7-8 hours.