This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X400-10S, 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 SUJ100X400-10S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X400-10S is a double-acting profile-type standard cylinder with a Ø100mm bore and 400mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X400-10S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke400 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X400-10S
- 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 SUJ100X400-10S
The AirTAC SUJ100X400-10S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 390-400 mm stroke out of the 400 mm nominal maximum. It features a 1/2" port, a 25 mm rod, and 29 mm adjustable air cushions at each end. The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads.
This SUJ unit is discontinued; the direct replacement is the SAUJ100X400-10S, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy model uses CS1-B/DS1-B switches (indicated by the -S suffix). At 400 mm stroke, external guides are recommended to prevent rod bending from side loads.
Airtac SUJ Adjustable Cylinder SUJ100X400-10S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X400-10S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X400-10S |
| Bore size | Ø100 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ100X400-10S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAUJ100X400-10S 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 SUJ100X400-10S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | 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 SUJ100X400-10S Is Used
Press Fit Tuning
Trimming the extend stroke by up to 10 mm on-site allows precise press-fit depth alignment for bearings without machining hard stops.
Divertor Positioning
Adjusting the extend end position on the fly accommodates varying package sizes on a sorting line without reprogramming the motion controller.
Pallet Stop Calibration
A 10 mm external stop screw window provides exact pallet engagement positioning at the end of a 400 mm extend cycle.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X400-10S with the SAUJ100X400-10S
To replace the discontinued SUJ100X400-10S, order the direct replacement SAUJ100X400-10S, which retains the 100 mm bore, 400 mm stroke, 1/2" port, and FA/LB mounting. Choose the 10 mm adjust window when you need fine end-position tuning without mechanical shims. For magnet options, the -S suffix on the SUJ used legacy CS1-B/DS1-B sensors; the SAUJ replacement requires current CMSG/DMSG/EMSG switches. Because the 400 mm stroke exceeds 300 mm, use external guides to manage side-load and rod-bending forces.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X400-10S
- ✓ 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 SUJ100X400-10S FAQ
Yes, the SUJ100X400-10S is discontinued. The SAUJ also adds the SAUF built-in-valve variant and uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw offers a 10 mm adjust window, shortening the 400 mm nominal extend stroke down to 390 mm. The stop sets end position but does not lock the load; use an external rod lock for holding.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X400-10S
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