This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X680S, 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 SU32X680S
The AirTAC Airtac SU32~50 Standard Cylinder SU32X680S is a double-acting profile-type standard cylinder with a Ø32mm bore and 680mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X680S, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke680 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAU32X680S
- 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 SU32X680S
The AirTAC SU32X680S is a discontinued double-acting profile cylinder with a 32 mm bore and 680 mm stroke, delivering 402 N push force at 0.5 MPa. AirTAC replaced this end-of-line unit with the SAU32X680S, a direct upgrade retaining the exact bore, stroke, output, 1/8" port, and SC-series mounting. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
Because this is a long 680 mm stroke, external guides are recommended to prevent rod bending. The -S magnet on this legacy SKU worked with CS1-B/DS1-B switches; the SAU replacement uses current CMSG/DMSG/EMSG sensors, and the SAU line adds a SAUF built-in-valve option the SU never had.
Airtac SU32~50 Standard Cylinder SU32X680S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU32X680S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X680S |
| Bore size | Ø32 mm |
| Stroke | 680 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU32X680S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAU32X680S 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 SU32X680S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×680 | 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 SU32X680S Is Used
Diverting Small Parts
Pushes light 20 kg packages on a 680 mm run between conveyor lanes, relying on the 402 N thrust at 0.5 MPa.
Compact Assembly Ejector
Extracts machined components from tight fixtures where the shorter profile body saves machine footprint.
Vertical Lift Gates
Raises light access doors; requires an external pilot-operated check valve since the cushion only decelerates.
Replacing the Airtac SU32~50 Standard Cylinder SU32X680S with the SAU32X680S
To replace this discontinued SU32X680S, order the SAU32X680S. Verify your 1/8" port thread (PT, G, or NPT), M10x1.25 rod end, and SC-series mounting (LB/FA/FB/CA/CB/TC). If sizing alternatives, a 40 mm bore yields 628 N push at 0.5 MPa, while a 32 mm bore is the minimum for this 680 mm travel. Because stroke exceeds 300 mm, use external guides to prevent side-load rod bending. The -S magnet means you must switch from legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors on the SAU. A plain cylinder does not hold load without live air; the 21 mm cushions only decelerate, so add a pilot-operated check valve or rod lock for vertical holding. The SAUF variant offers a built-in valve if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU32X680S
- ✓ 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 SU32X680S FAQ
Yes, the AirTAC SU32X680S is discontinued. The direct replacement is the SAU32X680S. It shares the same 32 mm bore, 680 mm stroke, force, 1/8" port, and SC-series mounting. The only change for buyers is that the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 32 mm bore has a 1/8" port and M10x1.25 rod thread. It outputs 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAU Cylinders
Request a Quote for the SAU32X680S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X680S replacement — usually within 7-8 hours.