This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X425S, 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 SU32X425S
The AirTAC Airtac SU32~50 Standard Cylinder SU32X425S is a double-acting profile-type standard cylinder with a Ø32mm bore and 425mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X425S, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke425 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAU32X425S
- 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 SU32X425S
The AirTAC SU32X425S is a discontinued double-acting profile-type cylinder with a 32 mm bore and 425 mm stroke. It delivers 402 N push and 345 N pull at 0.5 MPa through a 1/8" port. AirTAC replaced this legacy unit with the SAU32X425S, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
The compact extruded aluminum body is shorter than an ISO 15552 cylinder of the same bore. Because this is an -S magnet model, it originally used CS1-B/DS1-B switches; the SAU successor transitions to CMSG/DMSG/EMSG sensors and introduces a SAUF built-in 4M solenoid valve option the SU line lacked.
Airtac SU32~50 Standard Cylinder SU32X425S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU32X425S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X425S |
| Bore size | Ø32 mm |
| Stroke | 425 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 SAU32X425S 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 SAU32X425S 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 SU32X425S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×425 | 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 SU32X425S Is Used
Package Diverting
Pushes light cartons on a sorting line using the 402 N push force at 0.5 MPa, with the 425 mm reach clearing adjacent lanes.
Small Part Ejection
Ejects molded plastic parts from a press area, utilizing the compact 32 mm profile body to fit tight machine frames.
Replacing the Airtac SU32~50 Standard Cylinder SU32X425S with the SAU32X425S
To replace this discontinued SU32X425S, order the SAU32X425S direct equivalent, verifying 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, the neighboring 40 mm bore yields 628 N push at 0.5 MPa, whereas dropping pressure reduces force. Note the -S magnet: the SAU upgrade requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. At 425 mm, this long stroke demands an external guide to prevent rod bending under side loads. Finally, a plain cylinder drifts on air loss—the 21 mm cushions only decelerate; use an external rod lock or pilot-operated check valve for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAU32X425S
- ✓ 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 SU32X425S FAQ
Yes, the AirTAC SU32X425S is discontinued. The direct replacement is the SAU32X425S. It shares the identical 32 mm bore, 425 mm stroke, output force, 1/8" port, and SC-series mounting, so it drops right into the same application.
The 32 mm bore provides 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical max of 82 kgf at 1.0 MPa. Because this is an -S model, the original CS1-B/DS1-B switches do not carry over; the SAU replacement uses the current CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU32X425S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X425S replacement — usually within 7-8 hours.