This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X350-75S, 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 SUJ40X350-75S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X350-75S 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 SAUJ40X350-75S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke350 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X350-75S
- 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 SUJ40X350-75S
The AirTAC SUJ40X350-75S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 75 mm on-site, giving a usable 275-350 mm stroke out of the 350 mm nominal maximum. It features a 1/4" port, a 16 mm rod, and 21 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 SUJ40X350-75S is discontinued and the direct replacement is the SAUJ40X350-75S, retaining the same bore, stroke, force, 1/4" port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy unit used CS1-B/DS1-B switches (indicated by the -S suffix). Because the 350 mm stroke is long, use external guides to prevent rod bending and side-load wear.
Airtac SUJ Adjustable Cylinder SUJ40X350-75S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X350-75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X350-75S |
| 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 SAUJ40X350-75S 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 SAUJ40X350-75S 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 SUJ40X350-75S
| 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 SUJ40X350-75S Is Used
Variable-Length Clamping
Accommodates different material widths on a single fixture by trimming the 350 mm extend stroke up to 75 mm on-site without changing cylinder mounts.
Adjustable Diverter Arms
Allows operators to fine-tune the extend reach of a sorting gate by up to 75 mm to handle varying package sizes on the fly.
Variable-Depth Sealing Jigs
Dials in the exact forward position for carton flaps or sealing heads, using the 75 mm adjust window to compensate for box tolerances.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X350-75S with the SAUJ40X350-75S
To replace the discontinued SUJ40X350-75S, order the direct replacement SAUJ40X350-75S, which matches the 40 mm bore, 350 mm stroke, 75 mm adjust window, 1/4" port, and FA/LB mounts. Choose the 75 mm adjust window if you need to trim the extend stroke on-site by up to 75 mm; the stop screw sets the end position but does not lock the load. For the -S magnet option, note the sensor change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG. Because the 350 mm stroke is long, add external guides to handle side-load and rod-bending forces.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X350-75S
- ✓ 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 SUJ40X350-75S FAQ
Yes, the SUJ40X350-75S is discontinued. The direct replacement is the SAUJ40X350-75S, which shares the same 40 mm bore, 350 mm stroke, 75 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 allows you to trim the extend stroke by up to 75 mm on-site, giving a usable extend range of 275-350 mm. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X350-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X350-75S replacement — usually within 7-8 hours.