This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X400-50, 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 SUJ32X400-50
The AirTAC Airtac SUJ Adjustable Cylinder SUJ32X400-50 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 SAUJ32X400-50, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAUJ32X400-50
- 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 SUJ32X400-50
The AirTAC SUJ32X400-50 is a double-acting double-rod profile cylinder with a 32 mm bore and a 400 mm maximum extend stroke. Its external stop screw lets you trim the extend stroke by up to 50 mm on-site, giving a usable range of 350-400 mm. The stop sets the end position but is not a load lock.
The direct replacement is the SAUJ32X400-50, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this SUJ used legacy CS1-B/DS1-B switches. As this SKU lacks a magnet (-S), it cannot take a magnetic switch.
Airtac SUJ Adjustable Cylinder SUJ32X400-50 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ32X400-50 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X400-50 |
| 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 SAUJ32X400-50 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 SAUJ32X400-50 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 SUJ32X400-50
| 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 SUJ32X400-50 Is Used
Variable Push Fixtures
Adjusting the extend stroke by up to 50 mm on-site allows a single 400 mm cylinder to seat varying part heights in machining fixtures without swapping bodies.
Transfer Diverter Timing
Trimming the extend end position lets operators fine-tune a diverter gate's reach on a packaging line to accommodate different box widths on the fly.
Adjustable Stops
The external stop screw provides a hard mechanical end position for pallets or trays, adjustable within the 350-400 mm window to handle multiple product formats.
Replacing the Airtac SUJ Adjustable Cylinder SUJ32X400-50 with the SAUJ32X400-50
To replace the discontinued SUJ32X400-50, order the SAUJ32X400-50 direct; it preserves the 32 mm bore, 400 mm stroke, 1/8" port, and FA/LB mounting. Choose the -50 adjust window if you need up to 50 mm of field stroke tuning; for fixed positions, a standard SAU cylinder suffices. Because the stroke is 400 mm, use external guides to prevent rod bending and side-load wear. This non-magnetic SKU cannot support sensors, but if adding a -S SAUJ, use CMSG/DMSG/EMSG switches. For load holding, add an external rod lock, as the adjust screw and cushions are not brakes.
Replacement checklist
- ✓ Same bore / stroke → SAUJ32X400-50
- ✓ 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 SUJ32X400-50 FAQ
Yes, the SUJ32X400-50 is discontinued. The direct replacement is the SAUJ32X400-50, which matches the 32 mm bore, 400 mm stroke, 1/8" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw provides a 50 mm adjust window, allowing the 400 mm extend stroke to be shortened to 350 mm on-site.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ32X400-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X400-50 replacement — usually within 7-8 hours.