This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X100-100S, 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 SUJ40X100-100S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X100-100S is a double-acting profile-type standard cylinder with a Ø40mm bore and 100mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X100-100S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X100-100S
- 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 SUJ40X100-100S
The AirTAC SUJ40X100-100S is a double-acting double-rod profile cylinder with an on-site stroke-trim window. An external stop screw lets you shorten the extend stroke by up to 100 mm, dropping the usable extend from the 100 mm maximum down to zero. The extruded aluminum profile barrel is notably shorter than a standard cylinder of the same bore.
This SUJ series is discontinued and the direct replacement is the SAUJ40X100-100S, matching the 40 mm bore, 100 mm stroke, force, and FA/LB mounting. 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. Because this is an -S model, it has a piston magnet for legacy CS1-B/DS1-B switches, whereas the SAUJ replacement uses current CMSG/DMSG/EMSG sensors.
Airtac SUJ Adjustable Cylinder SUJ40X100-100S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X100-100S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X100-100S |
| Bore size | Ø40 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ40X100-100S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAUJ40X100-100S 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 SUJ40X100-100S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 SUJ40X100-100S Is Used
Variable Pitch Indexing
Dialing in the extend stroke by up to 100 mm on-site allows a single actuator to drive multiple part lengths without swapping the cylinder or adding mechanical stops.
Adjustable Diverter Gate
Tuning the extend position lets a diverter arm accommodate changing package widths on the fly, ensuring precise routing without reprogramming fixed hard stops.
Crush-Sensitive Forming
Limiting the extend stroke prevents over-travel when pressing delicate materials, using the external stop screw to set a firm, repeatable end position.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X100-100S with the SAUJ40X100-100S
To replace the discontinued SUJ40X100-100S, order the direct replacement SAUJ40X100-100S, which preserves the 40 mm bore, 100 mm maximum stroke, 1/4" port, and FA/LB mounting. The 100 mm adjust window is the maximum available for this bore, allowing you to trim the extend stroke down to zero on-site, which often beats installing a fixed-stroke cylinder plus an external stop. If upgrading, note the -S magnet sensor change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG. For strokes of 300 mm or longer, verify your side-load limits to prevent excessive rod wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X100-100S
- ✓ 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 SUJ40X100-100S FAQ
Yes, the SUJ40X100-100S is discontinued. You will only need to upgrade the -S piston magnet sensors from the legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG switches.
The bore is 40 mm with a 1/4" port. The external stop screw provides a 100 mm adjust window, meaning you can shorten the 100 mm maximum extend stroke down to 0 mm on-site. The stop sets end position only; it is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X100-100S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X100-100S replacement — usually within 7-8 hours.