This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X400-20, 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 SUJ32X400-20
The AirTAC Airtac SUJ Adjustable Cylinder SUJ32X400-20 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 SAUJ32X400-20, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAUJ32X400-20
- 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 SUJ32X400-20
The AirTAC SUJ32X400-20 is a discontinued double-acting double-rod profile cylinder with a 32mm bore and 400mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 20mm on-site, giving a usable 380-400mm range. This compact extruded barrel is shorter than an ISO 15552 cylinder of the same bore.
Because the SUJ line is end-of-life, the direct replacement is the SAUJ32X400-20, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy unit used CS1-B/DS1-B switches. Note this non-magnet SKU cannot take a switch, and the stop screw sets end position—it is not a load lock.
Airtac SUJ Adjustable Cylinder SUJ32X400-20 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ32X400-20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X400-20 |
| 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 SAUJ32X400-20 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 SAUJ32X400-20 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 SUJ32X400-20
| 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 SUJ32X400-20 Is Used
Variable Length Gauging
Trimming the extend stroke by up to 20mm on-site allows precise positioning of gauging arms without machining custom spacers.
Adjustable Forming Stops
Dial in the exact material contact point on a press fixture, accommodating material thickness variations directly at the machine.
Tunable Reject Pushers
Set the perfect ejection distance on a sorting line to adapt to different package sizes without swapping the entire cylinder.
Replacing the Airtac SUJ Adjustable Cylinder SUJ32X400-20 with the SAUJ32X400-20
To replace the discontinued SUJ32X400-20, order the direct replacement SAUJ32X400-20, which retains the 32mm bore, 400mm max stroke, 1/8" port, and FA/LB mounting. The 20mm adjust window is ideal when you need precise field tuning of the extend stroke without changing the cylinder body. Because this non-magnet SKU lacks a piston magnet, it cannot accept a sensor; if sensing is required, select an SAUJ with the -S option and use CMSG/DMSG/EMSG switches. For this 400mm long stroke, use external guides to prevent rod bending and side-load damage. The stop screw sets the end position but does not lock the load—use an external rod lock for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ32X400-20
- ✓ 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 SUJ32X400-20 FAQ
Yes, the SUJ32X400-20 is discontinued. The direct replacement is the SAUJ32X400-20, which matches the 32mm bore, 400mm stroke, 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 provides a 20mm adjust window, allowing you to shorten the 400mm extend stroke down to 380mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ32X400-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X400-20 replacement — usually within 7-8 hours.