This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X400SN, 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 SU32X400SN
The AirTAC SU32~50 Standard Cylinder SU32X400SN is a double-acting profile-type standard cylinder with a Ø32mm bore and 400mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X400SN, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAU32X400SN
- 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 SU32X400SN
The AirTAC SU32X400SN is a discontinued double-acting profile-type cylinder with a 32mm bore and 400mm stroke. It delivered 402 N push force at 0.5 MPa through a 1/8" port. AirTAC replaced this legacy unit with the SAU32X400SN, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
Because this SKU includes a magnet, it originally used CS1-B/DS1-B switches; the SAU successor transitions to CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered. The NBR seal supports -20 to +70 C, and the extruded aluminum body is more compact than same-bore ISO cylinders.
Airtac SU32~50 Standard Cylinder SU32X400SN Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU32X400SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X400SN |
| Bore size | Ø32 mm |
| Stroke | 400 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 SAU32X400SN 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 SAU32X400SN 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 SU32X400SN
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×400 | 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 SU32X400SN Is Used
Small Part Ejection
Ejects machined plastic parts from a press using the 345 N pull force at 0.5 MPa.
Gripper Actuation
Opens and closes a material handling gripper, utilizing the compact 32mm profile body.
Replacing the Airtac SU32~50 Standard Cylinder SU32X400SN with the SAU32X400SN
To replace this discontinued SU32X400SN, order the SAU32X400SN. Confirm the 1/8" port, M10x1.25 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) match your jig. If downsizing, a 40mm bore yields 628 N push at 0.5 MPa; if upsizing is needed, note 32mm is the minimum. The -S magnet means you must upgrade from CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors. The -N NBR seal is standard. At 400mm stroke, prevent rod bending by guiding the load externally. A plain cylinder drifts on air loss; the 21mm cushions only decelerate. For load holding, use an external rod lock or pilot-operated check valve. The SAUF valve-integrated variant can simplify cycling.
Replacement checklist
- ✓ Same bore / stroke → SAU32X400SN
- ✓ 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 SU32X400SN FAQ
Yes, the SU32X400SN is discontinued. The direct replacement is the AirTAC SAU32X400SN. It matches the 32mm bore, 400mm stroke, 1/8" port, force, and SC-series mounting, so no mechanical changes are needed.
It 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 it has a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU32X400SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X400SN replacement — usually within 7-8 hours.