This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X400-20S, 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 SUJ Adjustable Cylinder SUJ32X400-20S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ32X400-20S 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 SAUJ32X400-20S, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAUJ32X400-20S
- 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 SUJ Adjustable Cylinder SUJ32X400-20S
The AirTAC SUJ32X400-20S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 380-400 mm stroke out of the 400 mm nominal maximum. The stop screw strictly sets the end position and does not lock the load; external rod locks or pilot-operated check valves are required for held loads.
The direct replacement is the SAUJ32X400-20S, which preserves the 32 mm bore, 12 mm rod, M10x1.25 thread, and FA/LB mounting. Beyond the lifecycle upgrade, the SAUJ adopts current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches used here.
Airtac SUJ Adjustable Cylinder SUJ32X400-20S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ32X400-20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X400-20S |
| 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 SAUJ32X400-20S 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 SAUJ32X400-20S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUJ Adjustable Cylinder SUJ32X400-20S
| 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 SUJ Adjustable Cylinder SUJ32X400-20S Is Used
Variable Pitch Pushing
Tuning the extend stroke by up to 20 mm on-site to push parts of varying lengths into a machining station without re-mounting the cylinder.
Adjustable Diverter Gate
Setting a precise 380-400 mm extend position to deflect different package sizes on a conveyor line, allowing rapid field changes.
End-Stop Calibration
Dialing in the exact end position for a pallet stopper where the nominal 400 mm stroke requires slight shortening to mate with existing framework.
Replacing the Airtac SUJ Adjustable Cylinder SUJ32X400-20S with the SAUJ32X400-20S
To replace this discontinued SUJ32X400-20S, specify the SAUJ32X400-20S direct directly; it maintains the exact 32 mm bore, 400 mm max stroke, 20 mm adjust window, 1/8" port, and FA/LB mounting. Choose the 20 mm adjust window if your mechanism requires field tuning of the extend stroke between 380 mm and 400 mm. Because this unit has the -S magnet, you must migrate from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors on the SAUJ. Finally, at 400 mm stroke, minimize side-load and rod-bending by using external guides to support the piston rod.
Replacement checklist
- ✓ Same bore / stroke → SAUJ32X400-20S
- ✓ 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 SUJ Adjustable Cylinder SUJ32X400-20S FAQ
Yes, the SUJ32X400-20S is discontinued. The direct replacement is the SAUJ32X400-20S, which matches the 32 mm bore, 400 mm stroke, 20 mm adjust window, 1/8" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw allows you to trim the extend stroke by up to 20 mm on-site, giving a usable range of 380-400 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ32X400-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X400-20S replacement — usually within 7-8 hours.