This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X80STC, 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 SU40X80STC
The AirTAC Airtac SU32~50 Standard Cylinder SU40X80STC 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 SAU40X80STC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke80 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X80STC
- 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 SU40X80STC
The AirTAC SU40X80STC 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 and uses a 1/4" port. AirTAC replaced this unit with the SAU40X80STC, a direct replacement sharing the exact same bore, stroke, output force, port size, and SC-series TC mounting interface.
When upgrading, note the SAU body uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches on this SU model. The extruded aluminum profile is shorter than an ISO 15552 cylinder of the same bore. The SAU line also adds a SAUF variant with a built-in valve, an option the SU series never had.
Airtac SU32~50 Standard Cylinder SU40X80STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X80STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X80STC |
| 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 SAU40X80STC 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 SAU40X80STC 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 SU40X80STC
| 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 SU40X80STC Is Used
Package Diverting
Pushes small to medium cartons on a packing line using the 628 N push force at 0.5 MPa, with the 80 mm stroke handling standard divert distances.
Clamp Actuation
Secures lightweight aluminum extrusions during machining, leveraging the 528 N pull force and compact profile body to fit tight tooling spaces.
Parts Ejection
Ejects formed plastic components from molds, where the TC mount provides rigid support and the adjustable cushion decelerates the 16 mm rod smoothly.
Replacing the Airtac SU32~50 Standard Cylinder SU40X80STC with the SAU40X80STC
To replace this discontinued SU40X80STC, order the SAU40X80STC. Confirm the 40 mm bore, 80 mm stroke, 1/4" port, M12x1.25 rod thread, and the TC mounting accessory. Because this SKU includes a magnet (-S), you must switch from the old CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG sensor family. If sizing alternatives, the neighboring 32 mm bore yields 402 N push at 0.5 MPa, while the 50 mm bore provides 982 N. A plain cylinder drifts without live air, so for load holding add an external rod lock or pilot-operated check valve. If your application needs integrated control, explore the SAUF built-in-valve variant.
Replacement checklist
- ✓ Same bore / stroke → SAU40X80STC
- ✓ 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 SU40X80STC FAQ
Yes, the AirTAC SU40X80STC is discontinued and end-of-life. The direct replacement is the SAU40X80STC. It matches the 40 mm bore, 80 mm stroke, 628 N force, 1/4" port, and SC-series TC mounting accessories, fitting the same application space.
The 40 mm bore provides 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 model has a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X80STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X80STC replacement — usually within 7-8 hours.