This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X85S, 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 SU32X85S
The AirTAC SU32~50 Standard Cylinder SU32X85S is a double-acting profile-type standard cylinder with a Ø32mm bore and 85mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X85S, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke85 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAU32X85S
- 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 SU32X85S
The AirTAC SU32X85S is a discontinued double-acting profile-type cylinder with an 85 mm stroke and 32 mm bore, delivering 402 N push force at 0.5 MPa via a 1/8" port. AirTAC replaced this unit with the SAU32X85S, a direct alternative retaining the exact same body dimensions, output, and SC-series mounting hardware.
The upgrade introduces CMSG/DMSG/EMSG sensors to replace the legacy CS1-B/DS1-B switches used on this -S magnet model, and the new SAUF variant integrates a built-in valve the SU lacked.
Airtac SU32~50 Standard Cylinder SU32X85S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU32X85S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X85S |
| Bore size | Ø32 mm |
| Stroke | 85 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 SAU32X85S 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 SAU32X85S 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 SU32X85S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×85 | 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 SU32X85S Is Used
Package Diverting
Provides the precise 85 mm stroke needed to deflect small cartons on a sorting line without overpowering them.
Stopper Gate Actuation
Operates low-friction pneumatic stops to regulate item flow on roller conveyors within compact machinery envelopes.
Replacing the Airtac SU32~50 Standard Cylinder SU32X85S with the SAU32X85S
To replace the SU32X85S, order the SAU32X85S and verify your 1/8" port, M10x1.25 rod thread, and SC-series mounting brackets. Because this SKU includes a magnet (-S), you must upgrade your legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family. For higher force needs, stepping up to a 40 mm bore yields 628 N push at 0.5 MPa; if lowering force is acceptable, there is no smaller standard profile bore. Remember that a standard cylinder drifts without live air—the 21 mm cushions only decelerate the stroke end, so add an external rod lock or pilot-operated check valve for load holding. If your cycle demands faster self-switching, consider the SAUF valve-integrated option.
Replacement checklist
- ✓ Same bore / stroke → SAU32X85S
- ✓ 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 SU32X85S FAQ
Yes, the SU32X85S is discontinued. The direct replacement is the SAU32X85S, which matches the 32 mm bore, 85 mm stroke, 402 N force, 1/8" port, and SC-series mounting.
It delivers 402 N push and 345 N pull at 0.5 MPa, 563 N at 0.7 MPa, and a maximum theoretical force of 82 kgf at 1.0 MPa. Because this is an -S magnet model, the original CS1-B/DS1-B switches must be replaced by CMSG/DMSG/EMSG sensors on the SAU equivalent.
Request a Quote for the SAU32X85S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X85S replacement — usually within 7-8 hours.