This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X400-100S, 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 SUJ100X400-100S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X400-100S 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 SAUJ100X400-100S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke400 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X400-100S
- 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 SUJ100X400-100S
The AirTAC SUJ100X400-100S is a discontinued double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 100 mm on-site, yielding a usable 300-400 mm window from the 400 mm nominal maximum. The stop screw strictly sets the end position; it is not a load lock, so add an external rod lock for held loads.
This unit is replaced direct by the SAUJ100X400-100S, retaining the exact 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. The 400 mm stroke warrants external guides to mitigate rod bending under side loads.
Airtac SUJ Adjustable Cylinder SUJ100X400-100S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X400-100S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X400-100S |
| 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 SAUJ100X400-100S 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 SAUJ100X400-100S 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 SUJ100X400-100S
| 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 SUJ100X400-100S Is Used
Variable Depth Boring
Machine tools requiring field stroke tuning to adjust boring depth between 300 and 400 mm without swapping the entire cylinder.
Adjustable Length Diverter
Conveyor lines where the extend stroke must be trimmed on-site by up to 100 mm to accommodate changing package dimensions on the fly.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X400-100S with the SAUJ100X400-100S
To replace the discontinued SUJ100X400-100S, order the direct replacement SAUJ100X400-100S, which matches the 100 mm bore, 400 mm nominal stroke, 1/2 inch port, M20x1.5 rod thread, and FA/LB mounting. Choose the 100 mm adjust window if your fixture needs on-site extend tuning between 300 and 400 mm; this stop screw sets end position but is not a lock. Because the -S suffix denotes a piston magnet, swap the legacy CS1-B/DS1-B switches for current CMSG/DMSG/EMSG sensors. For the 400 mm stroke, add external guides to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X400-100S
- ✓ 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 SUJ100X400-100S FAQ
Yes, the AirTAC SUJ100X400-100S is discontinued. The direct replacement is the SAUJ100X400-100S, which matches the 100 mm bore, 400 mm stroke, 100 mm adjust window, 1/2 inch port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 100 mm bore double-rod cylinder pushes 3927 N and pulls 3681 N at 0.5 MPa, pushing 5497 N at 0.7 MPa and 7068 N at 0.9 MPa, with a theoretical max of 801 kgf at 1.0 MPa. The external stop screw provides a 100 mm adjust window, allowing you to trim the 400 mm extend stroke down to 300 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X400-100S
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