This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X420, 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 SU32X420
The AirTAC SU32~50 Standard Cylinder SU32X420 is a double-acting profile-type standard cylinder with a Ø32mm bore and 420mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X420, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke420 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAU32X420
- 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 SU32X420
The AirTAC SU32X420 is a discontinued double-acting profile-type cylinder with a 32 mm bore and 420 mm stroke. It delivers 402 N push force at 0.5 MPa via a 1/8" port. AirTAC replaced this legacy unit with the SAU32X420, a direct upgrade retaining the exact bore, stroke, output force, and SC-series mounting.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors (replacing the old CS1-B/DS1-B switches) and a new SAUF valve-integrated option. This non-magnet SKU cannot accept a sensor.
Airtac SU32~50 Standard Cylinder SU32X420 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU32X420 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X420 |
| Bore size | Ø32 mm |
| Stroke | 420 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 SAU32X420 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 SAU32X420 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 SU32X420
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×420 | 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 SU32X420 Is Used
Bin Actuation
Opens and closes tall gravity-fed parts bins where a compact 32 mm profile body fits tight vertical spaces.
Light Pressing
Applies up to 563 N at 0.7 MPa to seat small bearings or pins, relying on adjustable 21 mm cushions for smooth stops.
Replacing the Airtac SU32~50 Standard Cylinder SU32X420 with the SAU32X420
To replace this discontinued SU32X420, order the SAU32X420 direct equivalent, verifying the 1/8" port, M10x1.25 rod thread, and SC-series mounting. If stepping up, a 40 mm bore yields 628 N push at 0.5 MPa; stepping down is not advised for 32 mm. Because this is a non-S SKU, it cannot hold a magnetic sensor. The 420 mm stroke requires external guides to prevent rod bending under side loads. Note: the cushion only decelerates; use a pilot-operated check valve or rod lock to hold loads.
Replacement checklist
- ✓ Same bore / stroke → SAU32X420
- ✓ 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 SU32X420 FAQ
Yes, the SU32X420 is discontinued. The direct replacement is the AirTAC SAU32X420. It shares the same 32 mm bore, 420 mm stroke, 1/8" port, and SC-series mounting accessories, so it drops right into the same application.
It pushes 402 N and pulls 345 N at 0.5 MPa, pushes 563 N at 0.7 MPa, and has a theoretical max of 82 kgf at 1.0 MPa. This non-magnet SKU cannot accept a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches if sensing is required.
Request a Quote for the SAU32X420
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X420 replacement — usually within 7-8 hours.