This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X400-50S, 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 SUJ32X400-50S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ32X400-50S 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 SAUJ32X400-50S, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAUJ32X400-50S
- 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 SUJ32X400-50S
The AirTAC SUJ32X400-50S is a double-acting double-rod profile cylinder with a 32 mm bore and 400 mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 350-400 mm window to dial in exact end positions without machining. The compact extruded aluminum barrel is notably shorter than a standard cylinder of the same bore.
This SUJ32X400-50S unit is discontinued and the direct replacement is the SAUJ32X400-50S, retaining the same force, 1/8" port, and FA/LB mounting. The built-in magnet (-S) functioned with legacy CS1-B/DS1-B switches; the SAUJ successor transitions to current CMSG/DMSG/EMSG sensors. Note that the stop screw sets end position but is not a load lock; external rod locks are required to hold loads on air loss.
Airtac SUJ Adjustable Cylinder SUJ32X400-50S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ32X400-50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X400-50S |
| 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 SAUJ32X400-50S 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 SAUJ32X400-50S 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 SUJ32X400-50S
| 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 SUJ32X400-50S Is Used
Variable Depth Dosing
Trimming the 400 mm extend stroke by up to 50 mm on-site allows precise volume adjustments for dispensing different fill levels without swapping cylinders.
Multi-Part Forming Stops
Dial in the external stop screw to accommodate varying material thicknesses in a press jig, using the 350-400 mm stroke window to set exact forming depth.
Adjustable Transfer Pushers
Tune the extend endpoint on the fly for product changeovers on a packaging line, using the 50 mm adjustment to handle varying box sizes.
Replacing the Airtac SUJ Adjustable Cylinder SUJ32X400-50S with the SAUJ32X400-50S
To replace the discontinued SUJ32X400-50S, order the SAUJ32X400-50S for an direct match retaining the 32 mm bore, 400 mm stroke, 50 mm adjust window, 1/8" port, and FA/LB mounting. Choose the 50 mm adjust window if your end-stop varies by up to 50 mm; the stop sets end position but does not lock the load. Because stroke is 400 mm, ensure external guides carry side loads to prevent rod bending. The -S magnet on the old unit used CS1-B/DS1-B switches; the SAUJ replacement requires CMSG/DMSG/EMSG sensors.
Replacement checklist
- ✓ Same bore / stroke → SAUJ32X400-50S
- ✓ 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 SUJ32X400-50S FAQ
Yes, the SUJ32X400-50S is discontinued. The direct replacement is the SAUJ32X400-50S, which matches the 32 mm bore, 400 mm stroke, 50 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 shorten the 400 mm extend stroke by up to 50 mm on-site (usable range 350-400 mm). The stop sets position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ32X400-50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X400-50S replacement — usually within 7-8 hours.