This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X55, 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 SU32X55
The AirTAC Airtac SU32~50 Standard Cylinder SU32X55 is a double-acting profile-type standard cylinder with a Ø32mm bore and 55mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X55, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke55 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAU32X55
- 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 SU32X55
The AirTAC SU32X55 is a discontinued double-acting profile-type cylinder with a 32mm bore and 55mm stroke. Delivering 402N push force at 0.5MPa via a 1/8" port, its extruded aluminum body is more compact than an ISO 15552 unit of the same bore. AirTAC's direct replacement is the SAU32X55, matching the exact bore, stroke, force, port, and SC-series mounting.
Because this 55mm stroke is non-standard, the SAU32X55 direct is the ideal way to maintain your footprint without custom machining. Note that this no-magnet SKU cannot accept a sensor, and the SAU family upgrades sensing to CMSG/DMSG/EMSG switches while adding an optional SAUF built-in valve.
Airtac SU32~50 Standard Cylinder SU32X55 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU32X55 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X55 |
| Bore size | Ø32 mm |
| Stroke | 55 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 SAU32X55 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 SAU32X55 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 SU32X55
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×55 | 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 SU32X55 Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to eject small molded components from a fixture reliably without requiring bulky pneumatics.
Package Diverting
The compact 32mm profile body and 55mm stroke quickly divert lightweight packages on a conveyor line within a tight machinery envelope.
Replacing the Airtac SU32~50 Standard Cylinder SU32X55 with the SAU32X55
To replace the discontinued SU32X55, order the SAU32X55 direct equivalent, confirming the 1/8" port, M10x1.25 rod thread, and SC-series mounting. This nonstandard 55mm stroke requires a custom or non-stock stroke order. Because this no-magnet SKU lacks a sensor groove, it cannot accept position switches; if sensing is needed, specify an -S SAU model which uses modern CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. For sizing alternatives, a 40mm bore yields 628N push at 0.5MPa if more force is needed, while a plain cylinder drifts on air loss—the cushion only decelerates, so use an external rod lock for held loads. The SAUF variant integrates a 4M solenoid valve if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU32X55
- ✓ 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 SU32X55 FAQ
Yes, the AirTAC SU32X55 is discontinued. The direct replacement is the SAU32X55, which shares the same 32mm bore, 55mm stroke, 1/8" port, output force, and SC-series mounting accessories for a seamless physical swap.
The 32mm bore generates 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa. The adjustable air cushion only decelerates the piston near stroke end; it does not hold the load on air loss, so an external rod lock or pilot-operated check valve is required for load holding.
Request a Quote for the SAU32X55
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X55 replacement — usually within 7-8 hours.