This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X350-100S, 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 SUJ40X350-100S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X350-100S is a double-acting profile-type standard cylinder with a Ø40mm bore and 350mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X350-100S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke350 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X350-100S
- 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 SUJ40X350-100S
The AirTAC SUJ40X350-100S 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. With a 350 mm nominal stroke, the usable extend range is 250-350 mm. The extruded aluminum profile barrel is shorter than a standard ISO 15552 cylinder of the same bore. This 40 mm bore version features a 16 mm rod, M12x1.25 rod thread, and a 1/4" port.
The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this SUJ used legacy CS1-B/DS1-B switches. The stop screw sets end position but is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ40X350-100S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X350-100S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X350-100S |
| Bore size | Ø40 mm |
| Stroke | 350 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 SAUJ40X350-100S 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 SAUJ40X350-100S 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 SUJ40X350-100S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 SUJ40X350-100S Is Used
Variable Length Ejector
Tuning the extend stroke on a parts ejector to accommodate different product lengths without reprogramming the machine cycle.
Adjustable Pusher Arm
Setting precise push distances on a conveyor diverter to route boxes of varying widths into specific lanes.
Carton Forming Stop
Dialing in the exact end position for a carton forming stop to handle multiple box sizes on the same line.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X350-100S with the SAUJ40X350-100S
To replace the discontinued SUJ40X350-100S, order the direct replacement SAUJ40X350-100S, keeping the 40 mm bore, 350 mm nominal stroke, 100 mm adjust window, and 1/4" port. Choose the 100 mm adjust window if you need to trim the extend stroke on-site down to 250 mm. Mounting is compatible with AirTAC SC series FA and LB brackets. Because this model has the -S magnet, you must upgrade from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors on the SAUJ. For the 350 mm stroke, add external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X350-100S
- ✓ 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 SUJ40X350-100S FAQ
Yes, the SUJ40X350-100S is discontinued. The direct replacement is the SAUJ40X350-100S, which matches the 40 mm bore, 350 mm stroke, 100 mm adjust window, 1/4" 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 window is 100 mm, allowing you to shorten the 350 mm extend stroke down to 250 mm on-site. The stop sets end position only; it is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X350-100S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X350-100S replacement — usually within 7-8 hours.